文献类型：期刊文献

中文题名：气相法二氧化硅/高温硅橡胶补强体系动态流变性能

英文题名：Dynamic Rheological Properties of HTV Silicone Rubber Reinforced with Fumed Silica

作者：何颖[1];李春忠[1];程起林[1]

机构：[1]华东理工大学材料科学与工程学院超细材料制备与应用教育部重点实验室,上海200237

年份：2006

卷号：6

期号：2

起止页码：308

中文期刊名：过程工程学报

外文期刊名：The Chinese Journal of Process Engineering

收录：CSTPCD;;EI(收录号：2006219898252);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目(编号:20236020;20176009);上海市重点实验室专项基金(编号:04DZ05622;05DZ223027);国家基础研究重大项目前期研究专项基金资助项目(编号:2002CCA02200);教育部重点项目基金资助项目(编号:02159);上海市基础研究重大项目基金资助(编号:04DZ14002);上海市纳米科技专项基金资助项目

语种：中文

中文关键词：二氧化硅聚集体;流变性;硅橡胶;补强

外文关键词：silica aggregate; rheological behavior; silicone rubber; reinforcement

摘要：采用橡胶加工分析仪,在一定的温度和频率下,分析了不同性质结构的气相法纳米二氧化硅在高温硅橡胶中的聚集体网络结构差异,以及聚集体网络对填充胶动态流变性能的影响.研究发现,高分支结构聚集体填充胶具有较高的剪切模量及损耗模量,对应变的依赖性大,补强作用好.
Fillers, when added to polymer systems, are known to cause a considerable change in dynamic behaviors especially for fumed silica with tridimensional network. A torsional strain-controlled rheometer named rubber processing analyzer （RPA） was used for measuring the dynamic theological properties of high-temperature vulcanites （HTV） with molecular weight of 600 000 g/mol at a certain temperature and frequency. And the differences in aggregate network of fumed silica dispersed in the filled silicone rubber were also investigated by RPA. The results indicated that the shearing and loss modulus of filled silicone rubber with more developed aggregate network showed more strain dependence. And the fumed silica with more developed aggregate network showed a better reinforcement to HTV.