Space exploration is the cutting-edge field of human scientific and technological development, and the choice of materials is essential to the performance and life of spacecraft.With its excellent radiation resistance and extreme temperature resistance, silicone rubber has become one of the indispensable materials in space exploration.


Silicone rubber is a high-performance elastomer made of siloxane polymer, which has excellent high temperature resistance, low temperature resistance and radiation resistance.In the space environment, spacecraft need to face extreme temperature changes and strong cosmic radiation, and the unique properties of silicone rubber make it an ideal material for protecting key components of spacecraft.


In terms of radiation resistance, silicone rubber can effectively resist the radiation of cosmic rays and solar particles.By adding special fillers (such as silica or carbon black) to silicone rubber, its radiation resistance can be further improved.


Experiments have shown that the optimized silicone rubber can still maintain good mechanical properties and sealing properties after long-term exposure to high-dose radiation, and is suitable for spacecraft seals, cable sheaths, thermal insulation layers and other components.


In terms of extreme temperature resistance, silicone rubber can maintain stable physical and chemical properties in the temperature range of -100°C to 300°C.For example, in the extreme temperature difference environment on the surface of the moon, silicone rubber seals can ensure the long-term sealing of spacecraft hatches and prevent gas leakage.In addition, silicone rubber is also used to make a thermal protective layer for spacecraft, which effectively isolates the impact of external high temperature on internal equipment.


In addition to the above properties, silicone rubber also has excellent flexibility and aging resistance, and can adapt to mechanical stress and long-term use needs in the space environment.For example, silicone rubber is used to make flexible solar panel brackets for spacecraft to ensure their stability and durability during expansion and folding.


In short, silicone rubber, with its excellent radiation resistance and extreme temperature resistance, provides a reliable solution for space exploration and promotes the sustainable development of aerospace science and technology.