High temperature resistance of phenyl silicone rubber

The excellent high-temperature resistance of phenyl silicone rubber is mainly due to the presence of siloxanes. Siloxoalkyl has high chemical inertness and thermal stability, is not easily decomposed, and can maintain good elasticity and physical properties at high temperatures. In addition, the polarity of siloxanes is relatively small, and the intermolecular interactions are weak, which enables them to maintain good flowability and elasticity at high temperatures. These characteristics are beneficial for the high temperature stability and high temperature resistance of phenyl silicone rubber.

Weathering resistance of phenyl silicone rubber

The presence of phenyl structure is the main factor leading to poor weather resistance of phenyl silicone rubber. The double bonds in phenyl are easily affected by ultraviolet radiation and undergo oxidation reactions, leading to aging and cracking of phenyl silicone rubber. In addition, the aromatic ring structure in phenyl is also prone to cracking reactions, which affects the performance of phenyl silicone rubber.

Wear resistance of phenyl silicone rubber

The presence of siloxanes is the main reason for the poor wear resistance of phenyl silicone rubber. Siloxoalkyl is relatively soft and prone to wear during use, resulting in a decrease in the wear resistance of phenyl silicone rubber.

Flame resistance of phenyl silicone rubber

The phenyl structure contains a large number of aromatic rings, which are prone to combustion, resulting in poor flame resistance of phenyl silicone rubber. The combustion performance of phenyl silicone rubber depends on the phenyl content and orientation of the phenyl structure. The presence of siloxanes has a certain impact on the flame resistance of phenyl silicone rubber. The silicon oxygen bond and oxygen oxygen bond in the silicone alkyl group are very stable chemical bonds that are not prone to combustion and can improve the flame resistance of phenyl silicone rubber. In addition, siloxane can release water during combustion, which can play a cooling role, suppress flame propagation, and also improve the flame resistance of phenyl silicone rubber.

Phenyl silicone rubber compound (HCR)