Influence of Surface Treatment and Crosslinking Density on the Rheological and Mechanical Properties of Particle Filled Elastomers
Influence of Surface Treatment and Crosslinking Density on the Rheological and Mechanical Properties of Particle Filled Elastomers
复制标题
表面处理和交联密度对颗粒填充弹性体流变和机械性能的影响
DOI：
10.1678/rheology.32.79
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
H. Yamane
中科院分区：
文献类型：
--
作者：
Kazuyuki Shohara;K. Uotani;H. Yamane
研究了表面处理和交联密度对二氧化硅颗粒填充有机硅树脂流变性能和力学性能的影响。尽管在液体有机硅基质中添加颗粒增加了储能模量 G' 和复数粘度 |η*|特别是在低频区域，颗粒的表面处理抑制了这种趋势。另一方面，表面处理增加了交联弹性体的储能模量E'和拉伸模量E。未填充颗粒的有机硅弹性体在橡胶区域表现出储能模量随着温度的增加而表现为熵弹性体，而高度颗粒填充的弹性体则表现出储能模量降低，表明其具有熵弹性特征。然而，随着交联密度的增加，小颗粒含量的有机硅弹性体的特性从熵弹性转变为焓弹性。
Influence of surface treatment and crosslinking density on the rheological and mechanical properties of silicone resin filled with silica particles was investigated. Although addition of particle in the liquid silicone matrix increased the storage modulus G' and the complex viscosity |η*| especially at a low frequency region, surface treatment of particle suppressed such tendency. On the other hand, surface treatment increased the storage modulus E' and the tensile modulus E of crosslinked elastomers. Particle unfilled silicone elastomer showed an increasing storage modulus with temperature at a rubbery region behaving as an entropy elastomer and highly particle filled elastomers showed a decreasing storage modulus indicating an enthalpy elastic character. However silicone elastomers with small particle content changed their character from entropy elastic to enthalpy elastic with increasing crosslinking density.