THERMOSETTING SILICON SPONGE RUBBER COMPOSITION HAVING UNIFORM CLOSED CELL, A PREPARATION PROCESS THEREOF AND A SPONGE RUBBER PRODUCT PRODUCED THEREFROM

摘要

PURPOSE: A thermosetting silicon sponge rubber composition having a uniform closed cell is provided to obtain a silicon sponge rubber composition without the discoloration by the heat after curing.;CONSTITUTION: A thermosetting silicon sponge rubber composition comprises 100 weight% of a mixture of methylvinyl polyorganosiloxane gum and hydroxyl polyorganosiloxane gum, 10~100 weight% of reinforcing silica, 0.5~20 weight% of silicon-processing aids, 1~10 weight% of polyorganohydrogensiloxane including a hydrogen group at both ends or side chain thereof, 1~10 weight% of a stabilizer, 0.001~1 weight% of a platinum catalyst, and 0.001~0.5 weight% of a curing retarder.;COPYRIGHT KIPO 2012