The 90°C Military Aviation PCM Provides Reliable Thermal Protection For Equipment In High-temperature Areas

The 90°C Military Aviation PCM Provides Reliable Thermal Protection For Equipment In High-temperature Areas

Appearance and physical characteristics:

• It can come in a variety of forms, such as blocks, flakes or powders, depending on the application and installation. If it is a block, it may have a certain size specification, which is convenient for installation in specific equipment or structural parts; Flakes may be more suitable for covering a larger area.
• Its appearance color is generally an inconspicuous color that meets military standards, such as dark gray or black, which can not only reduce the light reflection in aviation equipment, but also enhance its heat absorption or thermal radiation performance to a certain extent.
• In terms of physical properties, it has high mechanical strength and stability. In the military aviation environment, the PCM material needs to be able to withstand the mechanical effects of various vibrations, accelerations, and other mechanical effects during flight, and the PCM material needs to be able to withstand these forces without cracking or deforming.
• Its density is optimized so that it does not overload the aircraft and affect flight performance, but also ensures that there is enough mass to achieve good thermal performance. At the same time, it has good temperature resistance and thermal shock resistance, and can maintain the stability of its structure and performance in an environment with frequent temperature changes, and will not degrade due to frequent fluctuations in temperature around 90°C.

Thermal Properties:
1. Phase change characteristics

• The phase change temperature is set at 90°C. When the ambient temperature is below 90°C, it is in a relatively stable phase state, which may be solid or has a specific microstructure. When the temperature rises to 90°C, it undergoes a phase change and begins to absorb a large amount of heat, usually from a solid state to a liquid state (or other forms of phase change, such as a change in crystal structure). This phase transition process is reversible, and when the temperature drops, it gradually releases the stored heat and returns to its original phase. This allows it to efficiently store and release heat around 90°C, which is essential for the temperature regulation of some specific components in military aviation equipment.
• Its large latent heat of phase change means that it is able to absorb or release large amounts of energy in a relatively small range of temperature variations around 90°C. In the field of military aviation, some equipment or components operating at high temperatures, such as some key sensors near the engine, electronic components in high-temperature areas, etc.
• When the ambient temperature is close to 90°C, the PCM material can quickly absorb heat, prevent these equipment or components from overheating, and ensure their normal operation and stable performance. At lower temperatures, it releases heat to keep equipment or components within the right temperature range, preventing performance degradation or failure due to low temperatures.

2. Thermal conductivity

• Its thermal conductivity is in the right range. The thermal conductivity can neither be too high nor too low, if the thermal conductivity is too high, it may lead to too fast heat transfer, and the phase change material can not give full play to its advantages of storing heat, so that the temperature of the equipment changes too drastically; If the thermal conductivity is too low, it will affect its efficiency of absorbing and releasing heat, and the temperature of the equipment cannot be adjusted in time and effectively.
• By precisely controlling the thermal conductivity, the material is able to absorb and release heat at the right time, working in tandem with other components of aviation equipment for good thermal management.
• For example, in high-temperature areas such as near the engine, PCM materials with relatively high thermal conductivity are required to absorb heat quickly, while in the vicinity of some electronic devices that are more sensitive to temperature changes, PCM materials with slightly lower thermal conductivity may be required to regulate the temperature more smoothly.

Application Advantages:
1. Precise temperature control in high temperature environment

• The application of this 90°C PCM material in military aviation equipment enables precise temperature regulation of equipment components that are exposed to or operate near 90°C.
• For example, some sensors and electronics around aircraft engines need to operate at relatively stable temperatures to ensure the accuracy of measurement data and the reliability of the equipment. 90°C PCM materials can absorb or release heat through a phase change process when the temperature is close to 90°C, keeping the temperature of these equipment components within the right range at all times, improving their performance and service life.
• It can effectively reduce equipment failures and measurement errors caused by temperature fluctuations, which is essential to ensure the flight safety of aircraft and the normal operation of engines.

2. Adapt to complex high-temperature working conditions

• During the flight of military aircraft, high temperatures will be generated in the engine and other parts, and at the same time, the aircraft will also experience different changes in flight altitude and speed, resulting in continuous changes in the ambient temperature and heat load.
• The 90°C PCM material can adapt to this complex high-temperature working condition, whether it is a local temperature increase caused by the full load operation of the engine, or when the outside temperature is low but the internal temperature of the engine is still high when flying at high altitude, it can play its role in phase change energy storage and maintain the stability of the equipment temperature.
• At the same time, it can also provide reliable thermal protection for equipment in high-temperature areas when the aircraft performs different tasks and faces different climatic conditions, ensuring that the equipment can operate normally in all situations.

3. Improve the reliability and safety of equipment

• Through effective control of equipment temperatures in high-temperature areas, 90°C PCM materials can significantly improve the reliability and safety of military aviation equipment. For some key equipment working in a high-temperature environment, such as engine control systems, high-temperature sensors, etc., a stable temperature can ensure the normal performance of its functions.
• If these devices fail due to excessive temperatures, they can pose a serious threat to the flight safety of the aircraft. The application of PCM material can prevent equipment from overheating, reducing failures and safety hazards caused by temperature problems. In addition, in some occasions where unexpected high temperatures may occur, such as sudden engine failure leading to a sharp increase in local temperature, PCM materials can absorb heat for a certain period of time, providing a buffer time for the aircraft to take emergency measures and improving the safety of the aircraft.

Application Scenarios:
1. Thermal management of engine peripheral equipment

• In the engine compartment of a military aircraft, there are a number of critical devices and sensors that need to work at the right temperature. The 90°C PCM material can be installed in equipment housings, wiring pipes, etc., near the engine. When the engine runs so that the ambient temperature is close to 90°C, it begins to absorb heat, preventing the device from overheating.
• At the same time, it releases heat when the engine stops running or the temperature drops, keeping the equipment within the right temperature range and protecting the equipment from temperature changes.
• For example, for critical components such as the engine's temperature sensor and fuel control system, this PCM material can ensure reliable operation in different engine operating conditions and flight phases, improving engine performance and reliability.

2. Protection of electronic equipment in high-temperature areas

• On military aircraft, some electronic devices located in high-temperature areas, such as communication equipment close to the engine, some components of navigation equipment, etc., are susceptible to the effects of high temperatures. The 90°C PCM material can be applied to heat dissipation and temperature regulation in these electronic devices. When the temperature around the device is close to 90°C, it can absorb heat, reduce the temperature of the device, and ensure the normal operation of the electronic equipment and the quality of signal transmission.
• When the temperature is low, it also releases heat, preventing the device from degrading performance or difficulty starting up due to low temperatures. For example, PCM materials play a role in thermal management when an aircraft is flying at high altitudes and speeds, where the electronics near the engine may still rise in temperature due to thermal radiation from the engine, even when the outside temperature is low.

3. Temperature regulation of aircraft high-temperature structural components

• Some structural parts of the aircraft, such as certain parts of the fuselage that are subjected to high air currents, areas where the edge of the wing is heated by air friction during high-speed flight, etc., can also be temperature regulated by 90°C PCM material.
• When the temperature in these areas rises to close to 90°C, the PCM material can absorb heat, reducing the transfer of heat to the interior of the aircraft and reducing the thermal impact on the equipment and structures inside the aircraft. At the same time, when the temperature drops, it can release heat, prevent thermal stress and fatigue damage caused by rapid temperature changes of these structural components, and improve the stability and service life of aircraft structures.

First aid measures:

• In case of eye contact, rinse with plenty of water. Skin-to-skin contact: Remove contaminated clothing and shoes. Rinse with soap and water for 15 minutes. Accidental ingestion: Rinse your mouth and send to the hospital as soon as possible.

Packaging and storage:

1. Wrap:25kg/bag
2. Storage: Store in a dry, cool, ventilated place without sharp objects.