China Sichuan Aishipaier New Material Technology Co., Ltd. Company News

In today's rapid development of science and technology, a magical material is quietly changing our lives - phase change materials.   Like an intelligent energy manager, it plays a key role in many fields by virtue of its unique nature.     01 Revealing phase change materials PCM - Phase Change Material is a material that changes its physical state with temperature and absorbs or releases a large amount of energy in the process.   The absorption and release of this energy comes from the reorganization of its internal microstructure. Just like when ice melts into water, it absorbs heat, and when water solidifies into ice, it releases heat, but the power of the phase change material is more powerful and efficient.     02 Diverse families of phase change materials -- Organic phase change materials Paraffin is a common organic phase change material, which will undergo solid-liquid phase change at a specific temperature. Organic phase change materials have many advantages, such as large latent heat of phase change, stable chemical properties, almost no supercooling phenomenon and small volume change when melting, so in the field of building energy conservation, it is often used to prepare thermal insulation materials to help buildings maintain comfortable temperatures in different seasons. -- Inorganic phase change materials Crystalline hydrated salts are typical, such as sodium sulfate decahydrate. This kind of material has high enthalpy of phase change, large thermal conductivity and relatively low cost. However, the problems of supercooling and phase separation limit its application. In the field of solar energy storage, researchers try to overcome these problems by modifying it to make it better store solar heat. -- Composite phase change materials In order to synthesize the advantages of various types of phase change materials, organic and inorganic phase change materials are combined by a specific process. For example, the combination of paraffin and bentonite not only improves the energy storage performance of the material, but also enhances its stability. This composite method makes up for the deficiency of a single material and makes the performance of phase change materials more excellent. ​   03 Wide range of applications -- Construction field Integrate phase change materials into building materials, such as gypsum board, concrete, etc. In the hot summer, it can absorb excess heat in the room and prevent the indoor temperature from being too high. In the cold winter, it can release the stored heat and play a role in insulation. This not only improves indoor comfort, but also significantly reduces building energy consumption, helping to achieve green building goals. -- Electronic equipment With the high degree of integration of electronic devices, the problem of heat dissipation becomes more and more serious. Phase change materials can be made into heat sinks or filled in the equipment, when the chip and other parts of the temperature rise, phase change materials quickly absorb heat and phase change, so as to effectively control the temperature of the equipment, ensure the stable operation of electronic equipment, extend the service life. -- Cold chain logistics During the transportation of fresh items such as food, maintaining a low temperature environment is crucial. The cold storage agent made of phase change materials can maintain low temperature for a long time, without frequent replacement of the ice pack, ensuring the quality and safety of the goods, and providing strong support for the efficient operation of the cold chain logistics. ​   04 Obtaining Methods ASPAiER is a professional manufacturer of phase change materials, has been developed for more than 20 years, can be customized temperature coverage -80℃ to 180℃, including gel, powder, particles and other forms of phase change materials and thickening gel series of products. After the company passed the ISO9001 quality management system certification, strict implementation of the quality management system, its products through the test are: Shanghai Chemical Research Institute test report, national danger test report, Switzerland SGS content non-toxic safety test, Bette REACH report, ROHS report and so on. With the joint efforts of all employees, the products have been successfully sold to the United States, Germany, Ireland, Japan, South Korea and other countries and regions. If you need, welcome to contact us, contact information on the home page of the website "Contact us" view.

Ice packs and dry ice are both common refrigerated items, which can effectively maintain the freshness and quality of food. However, for these two kinds of refrigerated and fresh products, their heat preservation time and application methods are also different.     First, the main ingredient of the fresh-keeping ice pack is made of polymer compound gel or purified water mixture, which needs to be frozen into ice cubes in the freezer or freezer before use. The heat preservation time of this kind of fresh-keeping ice bag depends on its material and manufacturer. In general, they can maintain the freshness and quality of food for 24~48 hours.   However, if you put them in an airtight container or use them with other frozen items, they may stay fresh for longer. Second, dry ice is a relatively commonly used refrigerated preservation item, which can quickly reduce the temperature of food to a very low level, greatly reducing food spoilage. However, when using dry ice, pay special attention to the method of operation and the holding time.   The key to the thermal insulation performance of dry ice is its weight and ambient temperature. In general, the freshness and quality of food can be maintained between 24 and 48 hours. In addition, it is important to pay attention to safety when using dry ice. Because carbon dioxide gas is produced in the air, it needs to be used in an environment with good air circulation and avoid contact with the skin or mouth.     All in all, both ice packs and dry ice are very useful refrigerated items. Therefore, we need to choose the items that are suitable for us according to the actual situation, and use the correct methods and precautions of both to ensure the freshness and quality of the food, and also ensure our own safety.     Sichuan Ashpyer New Material Technology Co., Ltd. (hereinafter referred to as "Ashpyer"), formerly known as: Chengdu Xinhai Huicai Biotechnology Co., Ltd., was involved in the research and development of ice packs in 1997, and has won more than 20 invention patents and utility model patents.   Temperature detection and other value-added services in one of the whole cold chain logistics services, the company in 2015 the product upgrade to the product traceability system synchronization, from the original product cold storage, cold insulation, temperature and humidity monitoring to the current product production date, expiration date, batch number and other information, to create a unique identifiable barcode, product quality traceability, and then according to the identification code of the packaging associated code, query the flow of goods in the circulation process, to achieve the purpose of anti-counterfeiting and anti-channeling, It provides a complete set of information solutions for product quality traceability, anti-counterfeiting and anti-channeling of production enterprises, so as to achieve the purpose of improving product quality, improving service and improving management level.   The application of the company's one-stop intelligent product line such as warehouse temperature and humidity intelligent monitoring system, video intelligent monitoring system, power room environmental monitoring system, and water immersion sensor series. Its product range covers many industries and application fields such as industrial control, medicine, communications, agriculture, meteorology, and electric power. Our products have the advantages of high accuracy, fast response time, good long-term stability, strong adaptability and excellent quality.   After the company passed the ISO9001 quality management system certification, the company strictly implements the quality management system, and its products have passed the testing including: Shanghai Research Institute of Chemical Industry test report, national hazardous chemical test report, Switzerland SGS non-toxic safety test of contents, REACH report, ROHS report, etc. With the joint efforts of all employees of the company, the products have been successfully sold to United States, Germany, Ireland, Japan, Korea and other countries and regions.   All employees of "Ashpyer" will be based on their own duties, adhering to the "customer first, continue to provide solutions for customers." Adhere to the core values of "continuous learning", "continuous innovation" as the driving force for development, relying on cutting-edge scientific research technology, advanced production processes, superior product quality and perfect service system to continuously meet the growing needs of customers.     Sichuan Ashpel New Material Technology Co., Ltd Tel: 028-67933699 84906988 E-mail: xhhc@xhhc.net Website: http://www.xhhc.cn Hotline: 400-6463-400

Composite phase change heat storage technology through the composite sensible heat storage and phase change heat storage materials, to avoid the sensible heat storage technology and phase change heat storage technology many shortcomings, has become a hot spot at home and abroad in recent years, but the traditional skeleton materials use natural minerals or their secondary products, large-scale mining or processing will destroy the local ecological environment and consume a large amount of fossil energy, in order to reduce the impact of the above problems on the environment, solid waste can be used to prepare composite phase change heat storage materials.   Calcium carbide slag is acetylene, polyvinyl chloride and other industrial solid waste produced in the production process, China produces more than 50 million tons per year, and the application of calcium carbide slag in the cement industry has been saturated, resulting in a large number of calcium carbide slag open air accumulation, ditch reclamation, serious damage to the local ecological environment, urgent need to explore new resource utilization methods.     In order to absorb industrial solid waste calcium carbide slag on a large scale and prepare low-carbon and low-cost composite phase change heat storage materials, researchers from Beijing University of Civil Engineering and Architecture proposed to use calcium carbide slag as the skeleton material to prepare Na2CO3/calcium carbide slag composite phase change heat storage materials by cold-pressing sintering method, and the specific steps are shown in the figure.   Considering the deformation, surface molten salt leakage and heat storage density, although the heat storage density of sample NC4 is the largest among the three composite phase change heat storage materials, the mass ratio of the composite phase change heat storage material corresponding to sample NC5 is considered to be the optimal ratio.   Subsequently, the team analyzed the macroscopic morphology, heat storage performance, mechanical properties, microscopic morphology, cyclic stability and material component compatibility of the composite phase change heat storage materials.   And mainly obtained the following conclusions: 01 The calcium carbide slag component has good compatibility with Na2CO3, which can replace the traditional natural skeleton material to synthesize Na2CO3/calcium carbide slag composite phase change heat storage materials, and large-scale resource recycling of calcium carbide slag to realize the low-carbon and low-cost preparation of composite phase change heat storage materials.   02 The 52.5% calcium carbide slag and 47.5% phase change material Na2CO3/composite can be used to prepare a composite phase change heat storage material with excellent performance, with no change and no leakage, with a heat storage density of up to 993 J/g, a compressive strength of 22.02 MPa, and a thermal conductivity of 0.62 W/(m•K) within 100~900 °C. After 100 heating/cooling cycles, the heat storage performance of the sample NC5 remained stable.   03 The thickness of the film layer determines the inter-particle force of the skeleton material and the compressive strength of the composite phase change heat storage material, and the composite phase change heat storage material prepared under the optimal mass fraction of the phase change material has the best mechanical properties.   04 The thermal conductivity of the skeleton material particles is the main factor affecting the heat transfer performance of the composite phase change heat storage materials, and the impregnation and adsorption of the phase change materials in the pore structure of the skeleton materials improves the thermal conductivity of the skeleton material particles, thereby improving the heat transfer performance of the composite phase change heat storage materials.  

"Phase change energy storage is a new type of energy storage. As a class of efficient energy storage materials, phase change energy storage materials can not only reduce building energy consumption and improve indoor environmental comfort through the organic combination with buildings, but also make extensive use of renewable energy and improve the utilization rate of fossil energy. Li Haijian, director of the Phase Change Energy Storage Research Office of China Building Materials Research Institute and professor-level senior engineer, recently pointed out in an interview with a reporter from China Building Materials News that compared with other energy storage methods, phase change energy storage has the advantages of high energy storage density, small size, constant temperature control, significant energy-saving effect, wide range of phase change temperature selection, and easy control, and has important application value and broad development prospects in many fields.   The calcium carbide slag component has good compatibility with Na2CO3, which can replace the traditional natural skeleton material to synthesize Na2CO3/calcium carbide slag composite phase change heat storage materials, and large-scale resource recycling of calcium carbide slag to realize the low-carbon and low-cost preparation of composite phase change heat storage materials.     The industry ushered in a golden period of development   "At present, the country vigorously advocates the use of clean energy and the promotion of low-energy buildings, which has ushered in a golden opportunity for the development of the phase change energy storage industry." Li Haijian pointed out that in advocating the use of clean energy and renewable energy, the country is stepping up efforts to control pollution in response to the increasingly serious problem of fossil pollution.   Since 2015, the northern provinces have accelerated the implementation of coal-to-electricity projects in response to the problem of winter heating pollution. With the progress of these projects, the pollution problem of the northern heating season has been greatly solved, but there are still many problems. One of the problems is that after the coal to electricity, the heating cost of the people has risen sharply. In order to encourage the people to vigorously use cheap valley electricity, the relevant departments also stipulate that the use of energy storage electric heating must be used. This provides a great opportunity for the development of phase change materials.   In terms of building low-energy buildings, Li Haijian believes that low-energy buildings not only need to improve the insulation level, but also increase the energy storage capacity of the building. Now the building is mostly a concrete structure, compared with the old earthen wall building, the heat preservation and heat storage capacity is poor, resulting in colder in winter and hotter in summer, and the building thermal insulation is improved, the building has no storage capacity, loses the heat exchange with natural energy, and the free natural energy is wasted. To solve this problem, the heat storage capacity of the building should be improved.   "The current buildings are basically lightweight buildings, low thermal inertia, poor heat storage capacity, in order to improve the heat storage capacity of the building, it is impossible to adopt the earth wall like the old building in the past, the heat storage capacity of the building can be improved by adding phase change materials, the heat storage capacity of phase change materials is strong, the heat storage density per unit volume is high, and the heat storage requirements of the building can be met with less mass of phase change materials.   The heat storage capacity of phase change building materials will show strong advantages, and phase change concrete, phase change mortar, phase change flooring, etc. will be vigorously developed. When talking about the development of the industry, Li Haijian said.     It can reduce the energy consumption of buildings   According to the reporter of China Building Materials News, there are two main ways for phase change energy storage materials to be used in buildings: one is "passive application". Phase change materials are compounded with traditional building materials to make phase change building materials, increase the thermal quality of the wall, and use as a "passive" energy storage material, relying on the change of room temperature or receiving solar radiation heat and other ways to passively absorb / release heat, the heat storage of the same volume phase change building materials is several times to dozens of times that of ordinary building materials, and the requirements of heat storage are realized without increasing the overall load-bearing of the building.   Phase change building materials mainly include phase change gypsum board, phase change concrete, phase change mortar, phase change coating, phase change wallboard, phase change energy storage floor or ceiling, etc. At present, phase change building materials have been widely used in building energy conservation and have good development prospects.   The other is "active application". Phase change materials are combined with solar heating, electric heating, floor heating, air conditioning, ventilation and refrigeration and other equipment to become an "active" energy storage body, which can be actively adjusted and controlled through heat exchange devices and heat exchange mediums, such as phase change heat collectors, phase change heat storage boxes, phase change heating systems, etc.   "Generally speaking, the slow development of phase change energy storage building materials or component products at home and abroad may be caused by the relatively high cost of phase change building materials and the low degree of integration with existing building design." Li Haijian introduced that relevant enterprises and research institutions at home and abroad are trying to promote the market-oriented development of phase change building materials, such as establishing calculation methods and standards related to existing energy-saving indicators to promote the development of the industry.   In addition, phase change building materials enterprises can also start from the design of low-energy buildings, to overcome the integration of existing building design, such as the phase change materials made into phase change blankets, phase change tiles for the building envelope structure, the application form is flexible, the construction is fast and easy to recycle, the phase change materials are made into phase change bags, and then combined with the insulation board to prepare the phase change insulation integrated board, which is also a good innovation.   Li Haijian pointed out that in the heating and cooling industry, the development speed of phase change energy storage is relatively fast, there are already companies at home and abroad specializing in the operation of related markets, such companies are basically integrated with the existing basic business, their original business is mainly engaged in the heating or refrigeration industry, the addition of phase change energy storage elements can improve the efficiency of the original system, reduce the cost of system operation, especially the storage of renewable energy, the energy transfer of valley power, energy storage system has more advantages, As an efficient means of energy storage, phase change energy storage is increasingly favored by enterprises.     Future development needs to take multiple measures at the same time   "At this stage, the high cost of materials, long time limit for return on investment, and poor economics of building phase change energy storage products have become important factors restricting the further development and promotion of building energy storage." Li Haijian pointed out that there are still the following problems in the development of phase change energy storage materials: First, the standard system is not perfect.   Standards are the basis for the industrialization of technology, and they are also an important factor to support the healthy development of the industry. Due to the lack of relevant technical standards, there are many limitations and inconveniences in the production and application of phase change energy storage materials, phase change building materials, and phase change device systems. Second, the national energy storage policy support is low. The development cycle of new technologies, especially new energy, is generally relatively long, and in the early stage of development, it usually needs the support of the country's industrial policy.   Although the party and the state attach great importance to the development of the energy storage industry, the energy storage industry support policies are insufficient, and there is a lack of detailed implementation measures, such as technology development roadmap, industrial development guidance, relevant incentive policies, cost-benefit sharing and accounting methods, etc., and the development of the energy storage industry is relatively slow.   In order to achieve the high-quality development of phase change energy storage materials, Li Haijian suggested that the first is to formulate national phase change standards and engineering specifications to support the development of phase change energy storage materials.   Formulate and publish technical standards, procedures, construction methods and general atlases of building energy storage (energy storage) technology and product equipment in a timely manner, strengthen the publicity, implementation and supervision of standards, and provide a strong scientific basis and solid technical support for standardizing and guiding the application of building energy storage (energy storage) technology. The second is to improve the key materials, manufacturing processes and energy conversion efficiency of building phase change energy storage, and further solve the problems of stability, safety and durability in large-scale applications.   At present, most of the phase change energy storage technology is in the hands of scientific research institutes and university researchers, so as to improve the conversion rate of scientific research achievements, evaluate the practical application effect and long-term application efficiency, and provide monitoring data to improve the large-scale application demonstration.     (This article was originally published in the 6th edition of China Building Materials News on December 19)

As a young baby, while I adore the glorious history of Big Brother Ice Cream, it's more important that I want to explore a whole new world of my own.   In the government's vigorous promotion of the "agricultural reform", the development of China's fresh market is mainly due to. With the continuous breakthrough and improvement of Internet technology and e-commerce platforms, China's fresh e-commerce market has gained a firm foothold in the struggle and achieved steady growth.   In the huge fresh food market, an important issue for e-commerce companies is to solve the challenges of cold chain logistics to achieve a major breakthrough.   It was at this time that I, an ice pack, came into the world.   1. Guess what's in it?     My name is Ice Pack, but that doesn't mean that I only have water frozen and condensed ice in my body except for plastic skin. I have many different siblings, and there are some differences in cooldown effects and cooldowns.   Superabsorbent resin is currently the most common type of ice pack. (SAP), carboxymethyl cellulose (CMC), and substances that reduce the heat capacity of water. Heat capacity is a physical quantity commonly used in thermodynamics to express the ability of a substance to increase the amount of heat it needs.   SAP is a polymer material with a large number of hydrophilic groups, strong water absorption, good water retention performance, and has the functions of thickening and gelling. CMC is a natural cellulose that is widely distributed and in high concentration. Its aqueous solution is a neutral or alkaline transparent viscous liquid, which has the functions of thickening, water retention, bonding, stabilization, emulsification, and suspension.   In other words, SAP and CMC can help me fix the shape to a certain extent, rather than forming it as easily as water, thus improving the convenience of storage and transportation. In addition, sodium polyacrylate can also be used as a water stabilizer and thickener.   Because water has a low freezing point, it is similar to most living things, and at room temperature, the main substance in my body is water. Water-soluble inorganic compounds such as sodium sulfate, sodium nitrate, and ammonium nitrate are often added as refrigerants to change the specific heat of water, thereby reducing the freezing point and prolonging the cryogenic cold storage time.     2. My magic, your health   During the cold chain transport, I secretly show my "magic" inside the shipping box: I had been frozen for more than 10 hours before entering the box and am now in a gel ice state. When the ambient temperature is higher than my body temperature, I liquefy and absorb a lot of heat from the environment so that the ambient temperature in the box quickly drops to a temperature value similar to mine.   I often use magic to ice packs, aquatic products, dairy products, refrigerated fruit drinks, refrigerated biological reagents, plasma, and vaccines, and to protect your health by dealing with bruises and fevers in the field of physical cooling.   Compared with dry ice, which also has a low-temperature preservation effect, I am not limited by air, train and other modes of transportation, and there are many ways to buy, not only in first-tier cities, but also to a large extent to solve many problems in low-temperature transportation.     Sichuan Ashpyer New Material Technology Co., Ltd. (hereinafter referred to as "Ashpyer"), formerly known as: Chengdu Xinhai Huicai Biotechnology Co., Ltd., was involved in the research and development of ice packs in 1997, and has won more than 20 invention patents and utility model patents. Temperature detection and other value-added services in one of the whole cold chain logistics services, the company in 2015 the product upgrade to the product traceability system synchronization, from the original product cold storage, cold insulation, temperature and humidity monitoring to the current product production date, expiration date, batch number and other information, to create a unique identifiable barcode, product quality traceability, and then according to the identification code of the packaging associated code, query the flow of goods in the circulation process, to achieve the purpose of anti-counterfeiting and anti-channeling, It provides a complete set of information solutions for product quality traceability, anti-counterfeiting and anti-channeling of production enterprises, so as to achieve the purpose of improving product quality, improving service and improving management level.   The application of the company's one-stop intelligent product line such as warehouse temperature and humidity intelligent monitoring system, video intelligent monitoring system, power room environmental monitoring system, and water immersion sensor series. Its product range covers many industries and application fields such as industrial control, medicine, communications, agriculture, meteorology, and electric power. Our products have the advantages of high accuracy, fast response time, good long-term stability, strong adaptability and excellent quality.   After the company passed the ISO9001 quality management system certification, the company strictly implements the quality management system, and its products have passed the testing including: Shanghai Research Institute of Chemical Industry test report, national hazardous chemical test report, Switzerland SGS non-toxic safety test of contents, REACH report, ROHS report, etc. With the joint efforts of all employees of the company, the products have been successfully sold to United States, Germany, Ireland, Japan, Korea and other countries and regions.   All employees of "Ashpyer" will be based on their own duties, adhering to the "customer first, continue to provide solutions for customers." Adhere to the core values of "continuous learning", "continuous innovation" as the driving force for development, relying on cutting-edge scientific research technology, advanced production processes, superior product quality and perfect service system to continuously meet the growing needs of customers.     Sichuan Ashpel New Material Technology Co., Ltd Tel: 028-67933699 84906988 E-mail: xhhc@xhhc.net Website: http://www.xhhc.cn Hotline: 400-6463-400

Where do I go from here?     Due to its convenience and long-term ice pack function, most businesses use ice packs to ensure the quality of fresh food when distributing fresh food. In this way, I gradually entered thousands of homes.   However, with the increasing number of orders for people buying ice packs online and the increase in environmental awareness, many families are faced with an awkward question: what to do with the ice bags used for ice packs? What kind of garbage should ice packs be classified as exactly that?     Through my self-introduction, you can understand that the contents of ice packs are not only water, but also contain 2-3 kinds of non-toxic and harmless polymers. So, most companies that make ice packs will print the words "reusable, as long as it's not broken" on my plastic skin.   So, how can ice packs be reused? When you receive your fresh produce and the included ice packs, simply place them directly in the freezer area of the freezer. Usually after 10-12 hours of freezing, the ice packs can form a cryogenic gel solid again. It can be removed and used if necessary. It is recommended that you put 2-3 ice packs in the refrigerator to be prepared. Whether it's a power failure, an outdoor picnic, a burn, or a muscle strain, I'll always use my magic to protect your health.     However, with the increase in the number of online purchases in recent years, many families have received more and more ice packs, and because they are not sure what to do with them, they have to hoard them at home, taking up a lot of space. Some time ago, the topic of "online shopping ice packs and ice bags are difficult to deal with" even appeared on Weibo hot search.   At this stage, the manufacturers of ice packs in the market and the sellers of ice packs do not carry out relevant recycling business, mainly because the purchase price of ice bags is mostly 0.1-0.5 yuan per bag, while customer orders are from all over the country. In the case of unified recycling, the cost of collection, logistics, transportation and sorting is very high, and it is difficult to achieve.   Therefore, for too many ice packs, many families treat them as household garbage, but the problem arises again: in recent years, garbage classification work is common, and many communities have implemented garbage classification management, so what kind of garbage are ice bags?     Since there is not only water in the ice pack, when you open the package, you will find a gelatinous substance that cannot be poured into the sewer pipe; Throwing away a large number of ice packs may also have an impact on the soil environment.   According to the statement of the relevant personnel of the sanitation department, it is recommended that when you dispose of the ice bag as domestic garbage, the outer plastic bag and the contents of the ice bag should be classified after the ice bag is cut. Plastic outer packaging can be used as "recyclable garbage", the contents are non-toxic can be put into the "other classified garbage" bin, and the toxic ones can be classified as "hazardous garbage".   It is hoped that in the near future, a systematic ice pack recycling and treatment system can be formed, and the environmental pollution problems caused by Xiaoice bags can be reduced on the basis of ensuring social economy, and a clean and beautiful earth garden can be built together.     Sichuan Ashpyer New Material Technology Co., Ltd. (hereinafter referred to as "Ashpyer"), formerly known as: Chengdu Xinhai Huicai Biotechnology Co., Ltd., was involved in the research and development of ice packs in 1997, and has won more than 20 invention patents and utility model patents.   Temperature detection and other value-added services in one of the whole cold chain logistics services, the company in 2015 the product upgrade to the product traceability system synchronization, from the original product cold storage, cold insulation, temperature and humidity monitoring to the current product production date, expiration date, batch number and other information, to create a unique identifiable barcode, product quality traceability, and then according to the identification code of the packaging associated code, query the flow of goods in the circulation process, to achieve the purpose of anti-counterfeiting and anti-channeling, It provides a complete set of information solutions for product quality traceability, anti-counterfeiting and anti-channeling of production enterprises, so as to achieve the purpose of improving product quality, improving service and improving management level.   The application of the company's one-stop intelligent product line such as warehouse temperature and humidity intelligent monitoring system, video intelligent monitoring system, power room environmental monitoring system, and water immersion sensor series. Its product range covers many industries and application fields such as industrial control, medicine, communications, agriculture, meteorology, and electric power. Our products have the advantages of high accuracy, fast response time, good long-term stability, strong adaptability and excellent quality.   After the company passed the ISO9001 quality management system certification, the company strictly implements the quality management system, and its products have passed the testing including: Shanghai Research Institute of Chemical Industry test report, national hazardous chemical test report, Switzerland SGS non-toxic safety test of contents, REACH report, ROHS report, etc. With the joint efforts of all employees of the company, the products have been successfully sold to United States, Germany, Ireland, Japan, Korea and other countries and regions.   All employees of "Ashpyer" will be based on their own duties, adhering to the "customer first, continue to provide solutions for customers." Adhere to the core values of "continuous learning", "continuous innovation" as the driving force for development, relying on cutting-edge scientific research technology, advanced production processes, superior product quality and perfect service system to continuously meet the growing needs of customers.     Sichuan Ashpel New Material Technology Co., Ltd Tel: 028-67933699 84906988 E-mail: xhhc@xhhc.net Website: http://www.xhhc.cn Hotline: 400-6463-400

The rapid development of fresh e-commerce platforms has allowed people to eat fresh aquatic products, fruits and vegetables, cooked food and other special delicacies without leaving home, which has also given rise to a huge demand for fresh-keeping ice bags, and its market size has increased year by year. So, what are the contents of ice packs, and are they safe for human health?   In fact, ice packs are not only filled with water, but also written in many outer packaging or sales introductions, such as "polymer compounds disguised cold storage raw materials" and "containing water-cooled gel particles". According to experts, the ice packs on the market can be divided into chemical refrigeration ice bags and physical refrigeration ice bags according to their refrigeration methods.   Chemical refrigeration ice pack is a disposable product, usually add sodium carbonate and ammonium salt, when added to water, the substance in the bag is mixed, reacts and absorbs heat, and can be cooled down "instantly" without being sent to the refrigerator for freezing, and is generally used for acute injuries such as sprains and falls during exercise. However, once this kind of ice pack is broken, there are certain risks, such as ammonium chloride is harmful to the skin and mucous membranes and liver function, and sodium nitrate is irritating to the skin and mucous membranes.   Most of our common food fresh-keeping ice bags belong to physical refrigeration ice bags. The principle is to add some chemicals to the water to reduce the freezing point and prolong the cryogenic cold storage time. At present, the main substances added on the market are sodium polyacrylate, superabsorbent resin (SAP), carboxymethyl cellulose (CMC), etc., which are safer than chemically refrigerated ice packs and can be used repeatedly.     These ice packs are generally frozen for several hours before being refrigerated and transported, and they are in a gelatinous ice state. During transportation, when the ambient temperature is higher than the temperature of the ice pack, the ice pack will liquefy, absorbing heat from the environment and cooling the inside of the box. Our fresh food can be kept cold for a long time, locking in the freshness.   Compared with dry ice, which also has a low-temperature preservation effect, physical refrigerated ice packs are not restricted by air, train and other modes of transportation, and there are many ways to purchase them, which greatly facilitates the low-temperature transportation of aquatic products, melons and fruits, and dairy products.   Consumers should not be overly concerned if such ice packs are accidentally damaged, resulting in food mixing with the ice pack filling. Because ice packs filled with sodium polyacrylate, there is usually no significant toxicity. Consumers can rinse their food in a timely manner so that there is generally no health risk after handling.

The knee joint is the center of the intersection of the upper and lower leg bones, there is a meniscus at both ends, and there is a patella behind it, the patella is stretched by two muscles, suspended before the intersection of the leg bones, and slides very casually, the knee joint is composed of the medial femoral and lateral condyles and the medial and lateral tibial condyles and the patella, which is the largest and most complex joint in the human body, and has more opportunities for injury. The knee joint is one of the joints with a large load in various activities of the human body, walking, sitting, lying, running, jumping and other activities in daily life are inseparable from it.   The knee joint is constructed to easily support movement, and normal movement is part of the joint task, but walking with weights, especially downhill, makes this flexed joint more challenging. When walking on the floor, your heels are under three times the pressure of your own weight; When jogging on flat surface, this pressure is about five times your own weight. Hiking down a mountain is similar to running, and if you carry a large backpack, the pressure will include five times the weight of the backpack.   The knee has its own shock absorber: the meniscus, which are two half-moon-shaped pieces of cartilage located where the femur and tibia meet, act like a cushion to distribute the weight. In addition, there are articular cartilages, which act like smooth elastic linings that cover the apex of the bones where the knee meets, minimizing friction when the bone ends move relative to each other.   However, these two types of cartilage can only reduce a certain amount of impact force, and when hiking with a heavy backpack on your back, especially when walking down a mountain, it is easy to cause organic lesions in the knee joint.     In a knee sprain, the medial collateral ligament (MCL) is usually the first to suffer, which starts in the thigh bone and ends in the tibia on the inside of the knee. If the sprain is severe, a snap will be heard when the medial collateral ligament is torn. After a while, the pain will turn into a dull ache and you may be able to walk, at least straight forward.   A torn medial collateral ligament usually does not require surgery, and rest, anti-inflammatory medications, and ice can help with recovery; Reinforcement exercises can help prevent the ligament from tearing again. If the sprain is extremely severe, the anterior cruciate ligament (ACL) may be torn, the pain can be severe, and it can also lead to knee instability, which will likely require surgery later.   The proper movement of the knee depends on the blood to transport nutrients, the normal support of the bones, the elasticity and auxiliary support of the ligaments, the need for the muscles to help the action and disperse the impact, etc.   Therefore, a healthy knee joint is the foundation for your outdoor hiking, running (outdoor running or running on a treadmill) and even normal standing, standing and walking, and normal metabolism is an indispensable premise.     For this reason, when you need to do outdoor activities such as hiking or running, it is essential to choose a good sports knee brace for your knees. When choosing a knee brace, you need to pay attention to the following:   1. Materials Generally, the high-quality ones are softer and not stiff when touched by hand, so that they will be more comfortable when wearing them, and the knees will not feel uncomfortable. And its warmth effect should also be good, especially after a lot of exercise, sweating more, if the wind will induce joint pain, can protect the knees.   2. Perforated ventilation and perspiration Tied to the legs, not only does it require warmth, but if you sweat a lot, it will feel wet and not too comfortable. Therefore, you can choose one with holes, because it is more breathable, it can expel sweat inside, and give a comfortable environment for the knees.   3. Paste And then there's the part where it's pasted. When the amount of outdoor exercise is relatively large, it is easy to cause the knee pad to not be in the same position as the joint, and it will fall off, which not only affects the activity, but also has to stop and re-glue, which is more troublesome. Therefore, it should be slip resistant and soft. This will also protect your knees without worrying about sweat slipping them off.   4. Design The choice of knee pads, not only to see the appearance, but also to pay attention to its design is reasonable, rationality is to say that it does not have to be regular, but will have a certain curvature, is based on the curvature of our knees to make the corresponding arc, in the process of exercise can also provide appropriate strength, in order to protect the knees, so that the body can move freely. If you allow, you can wear it when choosing, feel whether it is convenient and comfortable, and have a tactile experience in advance, so as not to hinder the movement when using it in the future.     ICE EMPEROR adjustable sports knee pads, made of high-quality imported OK fabric, soft, elastic, and with breathable holes, there are two wavy rubber anti-slip strips on the inside of the protector, which can effectively prevent the knee pads from slipping during the movement.   In terms of design, two bendable metal spring plates are attached to the inner and outer sides of the knee joint respectively to absorb and decompose the pressure on the knee joint in actions such as going up and down slopes or frequent jumps and landings, so as to keep the knee stable, so as to protect the knee joint.

In "The Yellow Emperor's Neijing· Su Wen · Treatise on Pain", there is: "If it is general, it will not hurt, and if it hurts, it will not work". Applying a warm compress with Ice Emperor's soft ice pack is actually to achieve the effect of warmth. When applying a hot compress, use a towel or cotton pad to pad the affected area, and then use the Ice Emperor soft ice pack to warm the compress, and there should be no burning sensation when it comes into contact with the skin. Apply a hot compress for 15-20 minutes each time, 3-4 times a day. So what are the benefits of hot compresses?     1. It can relieve eye fatigue Applying a warm compress with Ice King's soft ice pack can promote blood circulation around the eyes, reduce eye fatigue, partially alleviate the symptoms of dry eye syndrome, and have the effect of brightening the eyes and strengthening the brain.     2. It can prevent deafness Pre-heating with Ice King's soft ice pack and applying it to the ears or gently rubbing it can improve blood circulation in the ears and prevent functional hearing loss caused by ischemia.     3. Improve dizziness symptoms, improve reaction and thinking ability Preheat the Ice Emperor soft ice pack and place it on the back of the head for a few minutes at a time, which can stimulate the acupuncture points at the back of the head, improve the symptoms of dizziness in some patients, and also improve reflexes and thinking skills.     4. Treatment of stiff neck For a slight stiff neck, you can apply a soft ice pack to the affected area, and combine it with neck movement. Slowly bend your head forward, gently turning it forward, backward, left and right.     5. Prevention and treatment of cervical spondylosis For early symptoms of cervical spondylosis, such as stiffness, soreness in the neck or slight pain after cold, you can use Ice Emperor soft ice pack to improve the symptoms, promote blood circulation, relieve muscle spasms, prevent further progression of symptoms, and prevent cervical spondylosis.     6. Relieve chronic lumbar pain Lumbar spine pain can be treated with a soft ice pack to relieve local symptoms, and if the condition is serious, you should go to the hospital in time.     7. Relieve hip pain Stiff buttock muscles accompanied by a slight dull ache and soreness, lying flat and applying a soft ice pack to the painful area can relieve the symptoms.     8. Treatment of dysmenorrhea or cold abdominal pain For women with dysmenorrhea or abdominal pain caused by cold, they can use Ice Emperor's soft ice pack to apply hot compresses, which can have the effect of dissolving stasis, regulating qi and relieving pain.     9. Bruises During the stress period of sports injury, hot compresses cannot be applied, and cold compresses need to be applied to Ice Emperor soft ice packs to reduce swelling, relieve pain and stop bleeding; After 2~3 days of injury, if there is no bleeding and no swelling, you can use a hot ice pack to relieve the symptoms.     10. Go to the induration caused by injections Gently apply it to the induration area after injection for 30 minutes each time, and knead while applying a hot compress to promote blood circulation in the induration area and accelerate the absorption of the liquid.   Hot compress has become a commonly used adjuvant treatment method in the family, which is conducive to improving the temperature, accelerating blood circulation, speeding up metabolism, and is conducive to the recovery of diseases.   Tips: Sprains or broken skin should not be heated. Cold compresses can be applied with Ice Emperor soft ice packs, and can also be used for hot compresses, one bag for two purposes, with good effect and convenient full length.

Composite phase change heat storage technology through the composite sensible heat storage and phase change heat storage materials, to avoid the sensible heat storage technology and phase change heat storage technology many shortcomings, has become a hot spot at home and abroad in recent years, but the traditional skeleton materials use natural minerals or their secondary products, large-scale mining or processing will destroy the local ecological environment and consume a large amount of fossil energy, in order to reduce the impact of the above problems on the environment, solid waste can be used to prepare composite phase change heat storage materials.   Calcium carbide slag is acetylene, polyvinyl chloride and other industrial solid waste produced in the production process, China produces more than 50 million tons per year, and the application of calcium carbide slag in the cement industry has been saturated, resulting in a large number of calcium carbide slag open air accumulation, ditch reclamation, serious damage to the local ecological environment, urgent need to explore new resource utilization methods.     In order to absorb industrial solid waste calcium carbide slag on a large scale and prepare low-carbon and low-cost composite phase change heat storage materials, researchers from Beijing University of Civil Engineering and Architecture proposed to use calcium carbide slag as the skeleton material to prepare Na2CO3/calcium carbide slag composite phase change heat storage materials by cold-pressing sintering method, and the specific steps are shown in the figure.   Considering the deformation, surface molten salt leakage and heat storage density, although the heat storage density of sample NC4 is the largest among the three composite phase change heat storage materials, the mass ratio of the composite phase change heat storage material corresponding to sample NC5 is considered to be the optimal ratio.   Subsequently, the team analyzed the macroscopic morphology, heat storage performance, mechanical properties, microscopic morphology, cyclic stability and material component compatibility of the composite phase change heat storage materials, and mainly obtained the following conclusions:     01 The calcium carbide slag component has good compatibility with Na2CO3, which can replace the traditional natural skeleton material to synthesize Na2CO3/calcium carbide slag composite phase change heat storage materials, and large-scale resource recycling of calcium carbide slag to realize the low-carbon and low-cost preparation of composite phase change heat storage materials.     02 The 52.5% calcium carbide slag and 47.5% phase change material Na2CO3/composite can be used to prepare a composite phase change heat storage material with excellent performance, with no change and no leakage, with a heat storage density of up to 993 J/g, a compressive strength of 22.02 MPa, and a thermal conductivity of 0.62 W/(m•K) within 100~900 °C. After 100 heating/cooling cycles, the heat storage performance of the sample NC5 remained stable.     03 The thickness of the film layer determines the inter-particle force of the skeleton material and the compressive strength of the composite phase change heat storage material, and the composite phase change heat storage material prepared under the optimal mass fraction of the phase change material has the best mechanical properties.     04 The thermal conductivity of the skeleton material particles is the main factor affecting the heat transfer performance of the composite phase change heat storage materials, and the impregnation and adsorption of the phase change materials in the pore structure of the skeleton materials improves the thermal conductivity of the skeleton material particles, thereby improving the heat transfer performance of the composite phase change heat storage materials.  

Phase change energy storage is a new energy storage technology. As a class of efficient energy storage materials, phase change energy storage materials can not only reduce building energy consumption and improve indoor environmental comfort through organic combination with buildings, but also widely use renewable energy and improve the utilization rate of fossil energy.   Calcium carbide slag components have good compatibility with Na2CO3, which can replace the traditional natural skeleton materials to synthesize Na2CO3/ calcium carbide slag composite phase change heat storage materials, and large-scale resource recovery and utilization of calcium carbide slag, to achieve low carbon and low cost preparation of composite phase change heat storage materials.     The industry ushered in a golden period of development： Low energy buildings not only need to improve the level of insulation, but also need to increase the energy storage capacity of the building. Compared with the old earth wall building, the thermal insulation and heat storage capacity is poor, resulting in cold winter and hot summer, while the thermal insulation performance of the building is improved, the building has no thermal storage capacity, lost the heat exchange with the natural energy, and wasted the free natural energy. In order to solve this problem, the heat storage capacity of buildings should be improved.   Today's buildings are basically lightweight buildings with low thermal inertia and poor thermal storage capacity. In order to improve the thermal storage capacity of buildings, it is impossible to use earth walls like old buildings in the past. The thermal storage capacity of buildings can be improved by adding phase change materials, which have strong thermal storage capacity and high thermal storage density per unit volume.   And it can use less mass phase change materials to meet the heat storage requirements of buildings. The heat storage capacity of phase change building materials will show strong advantages, phase change concrete, phase change mortar, phase change floor, etc., will be vigorously developed.     It can reduce the energy consumption of buildings： According to the reporter of China Building Materials News, there are two main ways for phase change energy storage materials to be used in buildings: one is "passive application". Phase change materials are compounded with traditional building materials to make phase change building materials, increase the thermal quality of the wall, and use as a "passive" energy storage material, relying on the change of room temperature or receiving solar radiation heat and other ways to passively absorb / release heat, the heat storage of the same volume phase change building materials is several times to dozens of times that of ordinary building materials, and the requirements of heat storage are realized without increasing the overall load-bearing of the building.   Phase change building materials mainly include phase change gypsum board, phase change concrete, phase change mortar, phase change coating, phase change wallboard, phase change energy storage floor or ceiling, etc. At present, phase change building materials have been widely used in building energy conservation and have good development prospects.   The other is "active application". Phase change materials are combined with solar heating, electric heating, floor heating, air conditioning, ventilation and refrigeration and other equipment to become an "active" energy storage body, which can be actively adjusted and controlled through heat exchange devices and heat exchange mediums, such as phase change heat collectors, phase change heat storage boxes, phase change heating systems, etc.   "Generally speaking, the slow development of phase change energy storage building materials or component products at home and abroad may be caused by the relatively high cost of phase change building materials and the low degree of integration with existing building design." Li Haijian introduced that relevant enterprises and research institutions at home and abroad are trying to promote the market-oriented development of phase change building materials, such as establishing calculation methods and standards related to existing energy-saving indicators to promote the development of the industry.   In addition, phase change building materials enterprises can also start from the design of low-energy buildings, to overcome the integration of existing building design, such as the phase change materials made into phase change blankets, phase change tiles for the building envelope structure, the application form is flexible, the construction is fast and easy to recycle, the phase change materials are made into phase change bags, and then combined with the insulation board to prepare the phase change insulation integrated board, which is also a good innovation.   Li Haijian pointed out that in the heating and cooling industry, the development speed of phase change energy storage is relatively fast, there are already companies at home and abroad specializing in the operation of related markets, such companies are basically integrated with the existing basic business, their original business is mainly engaged in the heating or refrigeration industry, the addition of phase change energy storage elements can improve the efficiency of the original system, reduce the cost of system operation, especially the storage of renewable energy, the energy transfer of valley power, energy storage system has more advantages, As an efficient means of energy storage, phase change energy storage is increasingly favored by enterprises.     Future development needs to take multiple measures at the same time： "At this stage, the high cost of materials, long time limit for return on investment, and poor economics of building phase change energy storage products have become important factors restricting the further development and promotion of building energy storage." Li Haijian pointed out that there are still the following problems in the development of phase change energy storage materials: First, the standard system is not perfect. Standards are the basis for the industrialization of technology, and they are also an important factor to support the healthy development of the industry.   Due to the lack of relevant technical standards, there are many limitations and inconveniences in the production and application of phase change energy storage materials, phase change building materials, and phase change device systems. Second, the national energy storage policy support is low. The development cycle of new technologies, especially new energy, is generally relatively long, and in the early stage of development, it usually needs the support of the country's industrial policy.   Although the party and the state attach great importance to the development of the energy storage industry, the energy storage industry support policies are insufficient, and there is a lack of detailed implementation measures, such as technology development roadmap, industrial development guidance, relevant incentive policies, cost-benefit sharing and accounting methods, etc., and the development of the energy storage industry is relatively slow.   In order to achieve the high-quality development of phase change energy storage materials, Li Haijian suggested that the first is to formulate national phase change standards and engineering specifications to support the development of phase change energy storage materials. Formulate and publish technical standards, procedures, construction methods and general atlases of building energy storage (energy storage) technology and product equipment in a timely manner, strengthen the publicity, implementation and supervision of standards, and provide a strong scientific basis and solid technical support for standardizing and guiding the application of building energy storage (energy storage) technology.   The second is to improve the key materials, manufacturing processes and energy conversion efficiency of building phase change energy storage, and further solve the problems of stability, safety and durability in large-scale applications. At present, most of the phase change energy storage technology is in the hands of scientific research institutes and university researchers, so as to improve the conversion rate of scientific research achievements, evaluate the practical application effect and long-term application efficiency, and provide monitoring data to improve the large-scale application demonstration.     (This article was originally published in the 6th edition of China Building Materials News on December 19)

Energy storage phase change materials： Energy storage phase change materials refer to substances that use the latent heat of phase change for energy storage. It is also known as phase change energy storage or heat storage, energy storage, heat storage materials, latent heat energy storage materials, referred to as phase change materials.     Characteristics of energy storage phase change materials： Energy storage phase change materials have the advantages of high energy storage density, small temperature change in heat absorption and release process, and easy process control, and have a variety of materials and are widely used. Energy storage PCMs have the ability to change their physical state and absorb or release latent heat within a certain temperature range.     Taking solid-liquid phase change as an example, when heated to the melting point, the phase change material absorbs and stores a large amount of latent heat during the melting process. When cooled to the freezing point, the PCM releases latent heat during the solidification process. Energy storage phase change materials should have the following characteristics: non-toxicity, suitable phase change temperature, large latent heat of phase change, stable performance, good reversibility of phase change, small expansion and contraction rate during phase change, excellent thermal conductivity, and low price and easy availability of raw materials.     Classification of phase change materials for energy storag： Energy storage phase change materials can be divided into four categories according to the form of phase change. Solid-liquid phase change materials, solid-gas phase change materials, liquid-gas phase change materials and solid-solid phase change materials. The latent heat of phase change between solid-gas phase change materials and liquid-gas phase change materials is large, but the large volume change, high pressure and poor thermal conductivity limit their application range. The latent heat of phase change of solid-solid phase change materials is low, the phase change process is slow, and the application range is small. Solid-liquid phase change materials have the advantages of large latent heat of phase change, wide range of phase change temperature and low cost, and are energy storage phase change materials with great practical value and mature technology, so energy storage phase change materials usually refer to solid-liquid phase change materials.     Energy storage phase change materials can be divided into inorganic, organic (including polymers) and composite phase change materials according to their composition. Inorganic phase change materials mainly include metals and alloys, crystalline hydrate salts, molten salts, etc., which have the advantages of large latent heat of phase change, high volumetric energy storage density and large thermal conductivity, but have the disadvantages of easy subcooling and phase separation, corrosion container and liquid phase leakage. Organic phase change materials mainly include aliphatic hydrocarbons (paraffin, etc.), fatty acids, alcohols, polyenols, etc., which have the advantages of large latent heat of phase change, stable performance and low cost, but have the disadvantages of small thermal conductivity, low density, volatile and easy aging. Composite phase change materials mainly refer to organic and inorganic eutectic phase change materials to overcome the shortcomings of single inorganic or organic phase change materials, and the most studied ones are shaped phase change materials (SSPCMs) and microencapsulated phase change materials (MEPCMs). Energy storage PCMs are divided into high temperature (above 250°C), medium temperature (250~100°C) and low temperature (below 100°C) phase change materials according to the phase change temperature range. High-temperature phase change energy storage materials are mainly used in concentrated solar thermal power generation, industrial waste heat recovery, high-temperature heat engine and other fields. Medium-temperature phase change energy storage materials are mainly used in solar thermal utilization, drying and dehumidification and other fields; Low-temperature phase change energy storage materials have broad application prospects in the fields of building energy conservation, thermal management of electronic devices, and low-temperature cold storage.     Research and development of phase change energy storage materials： The design, preparation and intensification of energy storage phase change materials are the key to materials research and development. In order to obtain the appropriate phase change temperature and latent heat of phase change, it is necessary to synthesize a variety of phase change materials into multi-component mixed phase change materials according to a certain ratio.     The preparation of energy storage phase change materials mainly includes mechanical methods (loading phase change materials into containers), physical methods (blending method, impregnation method, etc.), chemical methods (polymer polymerization method, sol-gel method, etc.) and microencapsulation method. For low thermal conductivity phase change materials, it is necessary to add excellent thermal conductivity materials (metal fillers, graphite, carbon fiber, etc.), add ribs or capsule encapsulation for strengthening. In addition, the durability and economy of energy storage PCMs are the key to their application development.