2012•Guisuanyan tongbaoRequires access

Study on Silane Coupling Agent Used for Surface Treatment of Fumed Silica

Zhu Qiang

Abstract

In this paper,fumed silica was surface treated by different silane coupling agents.The change of surface status of fumed silica before and after treatment was characterized by FT-IR.The influence of amount of HMDS,treatment time and treatment temperature on surface treatment was analyzed by orthogonal test.The result showed that fumed silica,treated at 110 ℃ for 3 h with 18% HMDS,could highly improve the processing property and mechanics property of RTV-2 silicone rubber.Otherwise,the processing property could be improved by adding HMDS to silicone rubber directly.

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Key concepts: Fumed silica, Materials science, Silicone rubber, Silane, Composite material, Rubbing, Precipitated silica, Silicone