| 摘要 |
PURPOSE: A thermosetting type silicon rubber composition is provided to have excellent tensile strength, tear strength, and elongation, and to improve transparency and durability, thereby increasing usage count of a silicon rubber mold. CONSTITUTION: A thermosetting type silicon rubber composition comprises a silicone gum; a reinforcing silica; a processing aid including a first processing aid which includes one or more functional groups in the terminal thereof, selected from a hydroxy group, alkoxy group, and amine group, and a second processing aid which includes a copolymer silanol of siloxane polymers including a hydroxy group in the terminal thereof; and a surface treating agent. The amount of the first processing aid and the second processing aid are respectively 1-10 parts by weight and 1-5 parts by weight, based on 100.0 parts by weight of the silicone gum.
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