Silicone rubber has important application value in the aerospace field. Its excellent high temperature resistance, aging resistance, insulation, sealing and mechanical properties make it an ideal material for the manufacture of key components of aerospace vehicles. The specific applications are as follows:

1. High temperature and aging resistant materials

Application scenarios: high temperature environments such as aircraft engines and spacecraft thermal protection systems.

Advantages: Silicone rubber can withstand high temperatures above 200°C and will not experience significant performance degradation after long-term use. It is suitable for engine seals, thermal insulation pads and other components.

Case: In aircraft engines, silicone rubber is used to manufacture seals between turbine blades and casings to ensure that high temperature and high pressure gases do not leak.

2. Insulation and sealing materials

Application scenarios: aerospace electronic equipment, hydraulic systems, fuel systems, etc.

Advantages: Excellent insulation performance (volume resistivity ≥10¹⁴ Ω·cm) and sealing properties can prevent electromagnetic interference and fluid leakage. 

Case: In the electronic compartment of a spacecraft, silicone rubber is used for cable insulation and electronic component potting to ensure the reliability of equipment in extreme environments.

3. Lightweight and high-strength structural materials

Application scenarios: aerospace structural parts, shock-absorbing components, etc.

Advantages: Silica enhances the mechanical properties of silicone, improves tensile strength and wear resistance, while maintaining lightweight properties.

Case: In spacecraft landing brackets, silica silicone is used to make shock-absorbing pads to absorb landing impact and protect equipment safety.

4. Radiation-resistant and chemical-resistant materials

Application scenarios: outer surface of spacecraft, nuclear radiation environment, etc.

Advantages: Silica silicone has high tolerance to radiation and chemical corrosion, and is suitable for outer coatings and fuel storage systems of spacecraft.

Case: On the outer surface of spacecraft, silica silicone coating can prevent space radiation and atomic oxygen erosion, extending the service life of spacecraft.

5. Advanced manufacturing process support

Application scenarios: 3D printing, precision casting, etc.

Advantages: Silica silicone can be used as 3D printing material or mold material to achieve integrated molding of complex structures.

Case: In the manufacturing of aerospace parts, silicone rubber is used for 3D printing of high-precision seals and structural parts to improve production efficiency.

6. Environmental protection and sustainability

Application scenarios: aerospace life support systems, environmentally friendly materials, etc.

Advantages: silicone rubber is non-toxic and odorless, meeting the strict requirements of the aerospace field for the environmental protection of materials.

Case: In the spacecraft life support system, silicone rubber is used to manufacture seals for water treatment devices to ensure the safety of astronauts' water.

Technology development prospects

With the advancement of aerospace technology, the application of silicone rubber will be further expanded. For example, improving the dispersibility of silicone rubber through nanotechnology can further improve the mechanical properties and temperature resistance of silicone rubber; developing new cross-linking agents and modifiers can achieve long-term stability of silicone rubber in extreme environments. In addition, silicone rubber also has potential application value in the fields of reusable spacecraft thermal protection systems and deep space probe materials.