申请人:Dow Corning Toray Silicone Company, Ltd.
公开号:EP0939103A2
公开(公告)日:1999-09-01
A silicone rubber composition, comprising: (A) an polyorganosiloxane gum represented by the following average structural formula: RaSiO(4-a)/2 (where R is a substituted or non-substituted monovalent hydrocarbon, and a is a number between 1.8 and 2.3); (B) microparticulate silica; and (C) a methyl-substituted benzoyl peroxide having the maximum grain diameter not exceeding 50 µm and an average grain diameter of 30 µm. When cured, the silicone rubber composition has reduced nonuniformity in the physical properties because of fewer voids, resulting in decreased frequency of spark-outs in the insulated wires.
一种硅橡胶组合物,包括:(A) 由以下平均结构式表示的聚有机硅氧烷胶:RaSiO(4-a)/2(其中 R 是取代或非取代的一价烃,a 是介于 1.8 和 2.3 之间的数字);(B) 微粒白炭黑;以及 (C) 甲基取代过氧化苯甲酰,其最大晶粒直径不超过 50 微米,平均晶粒直径为 30 微米。硅橡胶组合物固化后,由于空隙减少,物理特性的不均匀性降低,从而降低了绝缘导线的火花熄灭频率。