Phenyl silicone rubber is a new type of silicone rubber material developed in the world to meet the increasing requirements of high and low temperature resistance. It is formed by introducing phenyl group on the side group of polysiloxane, polymerizing methyl phenyl tricyclic body (A3) and methyl mixed ring body (DMC) and vinyl ring body (VMC) together. The temperature range of the existing methylvinyl silicone rubber is extended from -60℃ -- 280℃ to -95℃ -- 350℃, while expanding the upper and lower limits of high and low temperature resistance. In addition to all the advantages of methyl vinyl silicone rubber, phenyl silicone rubber also has excellent low temperature resistance, ablation resistance, radiation resistance and self-extinguishing properties. It is one of the important materials of military industry, aerospace and cutting-edge science and technology. It can be used as a variety of molded and extruded products, for cold and burn resistant, heat aging and radiation resistant parts of the sealing ring, pad, pipe, bar, etc. It can also be used to make a variety of special purpose products, such as damping materials, pressure sensitive adhesives.

Phenyl silicone rubber basic classification:

Low phenyl silicone rubber
When the content of phenyl is 5-10% (ratio of phenyl to silicon atoms), commonly known as low phenyl silicone rubber, at this time, the hardening temperature of rubber is reduced to the lowest value (-115 ° C), so that it has the best low temperature resistance, and still has flexible elasticity at -100 ° C.

Medium phenyl silicone rubber
With the increase of phenyl content, the rigidity of molecular chain increases, but the crystallization temperature increases. When the phenyl content is 15 ~ 25%, it is commonly called medium phenyl silicone rubber, which has the characteristics of fire resistance.

High phenyl silicone rubber
When the phenyl content is more than 30%, it is commonly known as high phenyl silicone rubber, which has excellent radiation resistance. Phenyl silicone rubber is used in applications requiring low temperature resistance, ablation resistance, high energy radiation resistance, heat insulation and so on.