The influence of phenyl content on the properties of phenyl vinyl silicone gum is mainly reflected in the following aspects:

Low temperature resistance: As the phenyl content increases, the rigidity of the silicone rubber molecular chain gradually increases, causing the low temperature resistance of silicone rubber to gradually decrease. Specifically, when the phenyl content is low, such as in low phenyl silicone rubber, the phenyl content is between 5% and 10%. Silicone rubber has unique cold resistance and can survive at extremely low temperatures (such as -70 ℃~-100℃) still maintains the elasticity of rubber and is the best low-temperature performance among all rubbers.

Flame resistance and radiation resistance: As the phenyl content increases, the flame resistance and radiation resistance of silicone rubber will increase. For example, high phenyl silicone rubber has a phenyl content of more than 30% and has excellent radiation resistance.

In addition, phenyl vinyl silicone also has the advantages of methyl vinyl silicone rubber such as small compression permanent deformation, wide operating temperature range, antioxidant, weather resistance, shockproof, moisture-proof and good electrical insulation properties.

In summary, the phenyl content is one of the key factors affecting the performance of phenylvinyl silicone. By adjusting the phenyl content, the low-temperature resistance, flame resistance, and radiation resistance of silicone rubber can be optimized to meet different application scenarios. needs. However, specific performance changes need to be determined based on the specific formula and manufacturing process of silicone rubber.