Investigation on the preparation and properties of low-dielectric ethylene-vinyl acetate rubber / mesoporous silica composites
作者： Yanbo Lu , Qiong Lin , Wentan Ren , Yong Zhang
DOI: 10.1007/S10965-015-0694-6
关键词:
摘要: Mesoporous silica (SBA-15) was synthesized and two kinds of silane coupling agents, Triethoxyvinylsilane (A-151) 3-Aminopropyltriethoxysilane (KH-550), were used to surface-modify SBA-15. Modified SBA-15 (M-SBA-15) maintained original well-ordered hexagonal structure A series ethylene-vinyl acetate rubber (EVM)/ M-SBA-15 composites prepared. The morphologies, dielectric properties, dynamic mechanical properties thermal stability the investigated. Dielectric constant could be significantly reduced from 6.6 pure EVM 4.8 5.0 by loading 0.5 phr modified with A-151 (AM-SBA-15) KH-550 (KM-SBA-15) respectively. loss also showed scarcely frequency temperature dependence over a wide scope. Improved observed.
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