Self-fusing high dielectric silicone rubber composition and self-fusing high dielectric tape

摘要

A self-fusing high dielectric silicone rubber composition and a self-fusing high dielectric tape are provided. (A) An organopolysiloxane represented by the following average composition formula (1) and containing at least two alkenyl groups bonded to silicon atoms in one molecule: 100 parts by mass, R1nSiO (4-n) / 2 (1) (In the formula, R1 is the same or different unsubstituted or substituted monovalent hydrocarbon group, and n is a positive number of 1.95 to 2.04.) (B) Specific surface area by BET adsorption method is 50 m2. / G or more of hydrophobic fumed silica: 10 to 100 parts by mass, (C) conductive complex oxide: 100 to 300 parts by mass, (D) boric acid or boric acid compound: 0.1 to 50 parts by mass, ( E) Extrusion containing 1 to 10 parts by mass of a diorganopolysiloxane in which both ends of the molecular chain are blocked with an alkoxy group, and (F) a curing agent comprising an acyl-based organic peroxide: 0.01 to 10 parts by mass. Normal pressure heat by forming or rolling by calender roll Vulcanizable self-bonding high dielectric silicone rubber composition.