Preparation Of Fumed Silica And Its Application In Silicone Rubber

1. the preparation method of fumed silica. Fumed silica is made from halogenated silane (such as four chlorinated silica, four silicon fluoride, methyl three chloride and so on) in high temperature, hydrolyzing in hydrogen and oxygen flame to produce silica particles and then quenched. Particles are obtained after the post-processing technology such as aggregation, separation and deacidification. In the twentieth Century, in the 60's and 70's, fumed silica mainly took four chlorinated si