The main chain of silicone material contains "silicon-oxygen-silicon" structure, and the side chain contains a small number of organic groups. Therefore, it has the dual advantages of both organic and inorganic materials, such as high and low temperature resistance, radiation resistance and weather resistance (no double bond, not easy to be decomposed by ultraviolet light and ozone), hydrophobicity, physiological inertia, oil resistance, solvent resistance, etc. The material is incomparable.

Silicone rubber foaming material (also known as silica gel foamed cotton/silica gel) is a porous, low density, compressible high molecular elastomer material, which is prepared from raw rubber, filler, vulcanizing agent and foaming agent of silicone rubber, after mixing uniformly and foaming vulcanization at high temperature. Nowadays, silicone rubber foam is widely used because of its excellent properties of silicone rubber and foam material. It has high elasticity of rubber, and has the properties of sound absorption, shock absorption and so on. It is mainly used for cushioning pad, sealing pad, sound insulation material, insulating material, aviation thermal insulation material and other high performance materials.

Silicone rubber has many excellent properties:

(1) High and low temperature resistance
Silicone rubber has excellent mechanical properties at high temperature (above 200 C), and still has certain toughness and elasticity. The glass transition temperature (Tg) can be as low as - 70 C. Generally speaking, the working temperature of silicone rubber is - 100 C to 350 C. It can withstand thousands of degrees of instantaneous high temperature, so it is often used to make thermal protection coatings, such as aviation.

(2) Electrical insulation
Silicone rubber has good insulation. After combustion, silicon dioxide is still an insulating material. In addition, silicone rubber is not easy to scorch when discharged by arc, because the number of carbon atoms in its structure is small, and its reinforcing filler silica is suitable for high voltage applications.

(3) Physiological inertia
The surface of silicone rubber is hydrophobic, so the physical properties of silicone rubber decrease little in wet environment. Poor cohesion can play a role in isolation. It is non-toxic, tasteless, harmless to human health, and can only react slightly with the body, which has created its excellent physiological inertia, at the same time, it is also very superior in the physiological aging performance.