Silicone resin, as a type of thermosetting polysiloxane polymer with a highly cross-linked structure, plays a key role in the aerospace field due to its unique physical and chemical properties.
In the extreme environment of aerospace, the high-temperature resistance of silicone resin is particularly outstanding. Take aircraft engines as an example. The operating temperature can soar to 500℃. However, with HM310 silicone sealant, the components can operate continuously at this high temperature for 36 hours without peeling, bubbling or cracking. The adhesion remains at level 1, and there is no leakage in the 1.0MPa pressure test, ensuring the sealing in the high-temperature area of the engine.
Meanwhile, silicone resin has excellent radiation resistance and chemical corrosion resistance, making it an ideal choice for spacesuit materials. The spacesuits made can remain soft and elastic even in extremely low-temperature environments, and can also resist the erosion of high-energy rays and chemical substances in space, protecting the safety of astronauts. Its electrical insulation property also builds a solid defense line for the normal operation of spacecraft circuits and prevents current leakage.
However, silicone resin also faces challenges in aerospace applications. On the one hand, in response to the higher temperature environment requirements of future aerospace vehicles, it is necessary to develop new types of silicone resins or modification technologies to enhance high-temperature resistance. On the other hand, while meeting the demand for lightweighting, how to further enhance its strength and durability is also an urgent problem that materials scientists need to solve.