The Application of Silicone Rubber in the Aerospace Field

The aerospace field has extremely stringent requirements for the performance of materials, which need to remain stable and reliable in extreme environments. With its outstanding properties, silicone rubber plays a vital role in the key systems of aerospace, helping aircraft and spacecraft to break through limits. In the sealing systems of aircraft and spacecraft, silicone rubber is a core material. The sealing of parts such as the cockpit, fuel tank, and hydraulic system of an aircraft is of utmost importance. A slight oversight may lead to serious consequences. Silicone rubber seals have excellent high - and low - temperature resistance performance and can maintain elasticity and sealing performance in the extreme temperature environments of aerospace. For example, during high - altitude flights, the external temperature can drop to tens of degrees below zero, while the temperature near the aircraft engine is extremely high. Silicone rubber seals can effectively prevent gas and liquid leakage under such a large temperature difference, ensuring the safe operation of the aircraft or spacecraft. At the same time, silicone rubber also has good aging resistance and can withstand long - term ultraviolet radiation and cosmic ray irradiation, ensuring the long - term stability of the sealing performance, reducing the frequency of maintenance, and improving the operational efficiency of the aircraft or spacecraft. Silicone rubber also occupies an important position in the field of aerospace thermal insulation materials. When an aircraft or spacecraft flies at high speed in the atmosphere, a large amount of heat is generated on its surface due to friction with the air. If heat is not insulated in time, the internal equipment and structure will be seriously affected. Silicone rubber thermal insulation materials have low thermal conductivity and high heat resistance, which can effectively block the transfer of heat. For instance, the surface of the re - entry capsule of a spacecraft is covered with a layer of silicone - rubber - based thermal insulation material. When the re - entry capsule re - enters the atmosphere at an extremely high speed, this layer of thermal insulation material can withstand temperatures of thousands of degrees Celsius, protecting the astronauts and precision equipment inside the re - entry capsule. In addition, silicone rubber thermal insulation materials are lightweight, meeting the requirements of aerospace for lightweighting, helping to reduce the overall weight of the aircraft or spacecraft and improve its flight performance. Silicone rubber also plays a key role in the protection of avionics equipment. Avionics equipment has extremely high requirements for reliability and needs to resist various harsh environmental factors. Silicone rubber has good electrical insulation performance and can effectively prevent short - circuits in electronic equipment, ensuring the stable operation of the equipment. At the same time, it can also resist electromagnetic interference and protect electronic equipment from being affected in complex electromagnetic environments. For example, in key electronic components of aircraft such as radar systems and communication equipment, silicone rubber is used for potting and protection to make them immune to the effects of moisture, dust, and vibration, improving the reliability and service life of the electronic equipment. In conclusion, silicone rubber plays an irreplaceable role in the sealing, thermal insulation, and protection of electronic equipment in the aerospace field. With the continuous development of aerospace technology, the requirements for the performance of silicone rubber will also continue to increase. It is believed that in the future, silicone rubber will bring more innovations and breakthroughs to the development of the aerospace industry.

General Purpose precipitated Grade Silicone Rubber For Molding