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COMPOSITION FOR SILICONE RUBBER FOAMS, METHOD FOR PRODUCING SILICONE RUBBER FOAM, AND SILICONE RUBBER FOAM
COMPOSITION FOR SILICONE RUBBER FOAMS, METHOD FOR PRODUCING SILICONE RUBBER FOAM, AND SILICONE RUBBER FOAM
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机译:硅橡胶泡沫的组合物,硅橡胶泡沫的生产方法和硅橡胶泡沫
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摘要
There are provided a composition for silicone rubber foam, a manufacturing method of a silicone rubber foam, and a silicone rubber foam in which it is possible to arbitrarily control the cross-linked state of the silicone rubber during foaming to thereby control the foaming states such as the cell diameter, the foaming ratio and so on. The composition for silicone rubber foam contains: (A) 100 parts by mass of polyorganosiloxane having a mass average degree of polymerization of 4,000 to 10,000 and having two or more alkenyl groups at a content of 0.001 mmol/g or more and less than 0.3 mmol/g; an amount ofpolyorganohydrogensiloxane having an average of two or more Si-atom-bonded hydrogen atoms so that a molar ratio of the hydrogen atoms to the alkenyl groups in the (A) component is 0.001 to 5; 0.1 to 10 parts by mass of an organic foaming agent with a decomposition temperature of 50 to 250°C; 5 to 200 parts by mass of silica powder; and a catalyst amount of a platinum-based metal compound catalyst activated with ultraviolet rays.
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