| 摘要 |
Provided are a silicone rubber-based curable composition, and a manufacturing method, or the like, for the silicone rubber-based curable composition. The present invention relates to a silicone rubber-based curable composition comprising vinyl group-containing organopolysiloxane (A), organohydrogenpolysiloxane (B), and silica particles (C), the amount of silica particles (C) included being at least 26.0 weight% but less than 40.0 weight%, and the composition when cured being able to produce a silicone rubber having a type A durometer hardness, under JIS K6253(2006), of at least 40.0mN. The present invention also relates to a manufacturing method for the silicone rubber-based curable composition, the method including a step for obtaining a mixture by mixing vinyl group-containing organopolysiloxane (A), organohydrogenpolysiloxane (B), silica particles (C), a silane coupling agent (D), and a catalyst (E), wherein the amount of silica particles (C) included in the mixture is 40-84 parts by weight relative to the total amount, 100 parts by weight, of the vinyl group-containing organopolysiloxane (A) and the organohydrogenpolysiloxane (B). |
