Phenyl silicone rubber composition and its cured products

Abstract

This invention relates to a phenyl silicone rubber composition, characterized by comprising the following components (A) to (D): (A) a raw rubber-like organic polysiloxane represented by the following general formula (1); (B) a powdered silicon oxide with a BET specific surface area of ​​100 m² / g or more as a reinforcing silicon oxide; (C) a curing agent consisting of (i) a platinum-based catalyst and a silicone oxide having two or more Si-H groups in its molecule, or (ii) a peroxide; and (D) a dispersant. Accordingly, a phenyl silicone rubber composition is provided, which can produce a cured phenyl silicone rubber exhibiting good low-temperature properties, high hardness capable of withstanding high pressure, and high elongation capable of withstanding repeated exposure to both high-pressure and normal-pressure environments. none