| CB填充聚合物导电复合体系熔体聚集态结构演化 |
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| 引用本文： | 吴刚,郑强.CB填充聚合物导电复合体系熔体聚集态结构演化[J].高等学校化学学报,2006,27(3):583-585. |
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| 作者姓名： | 吴刚 郑强 |
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| 作者单位： | 浙江大学高分子科学与工程学系,杭州 310027 |
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| 基金项目： | 国家自然科学基金(批准号:50133020,50125312)资助. |
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| 摘 要： | 本文试图在低频率（ω）及小应变条件下,追踪粒子填充导电复合材料微观结构的变化与发展,并通过修正的KerneNielson 方程对材料的聚集态结构进行研究.
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| 关 键 词： | 炭黑填充导电复合体系 NTC行为 动态粘弹性 |
| 文章编号： | 0251-0790（2006）03-0583-03 |
| 收稿时间： | 09 30 2005 12:00AM |
| 修稿时间： | 2005-09-30 |
Developement of Melt Agglomerate Structure in Conductive Polymer Composites Filled with Carbon Black |
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| WU Gang,ZHENG Qiang.Developement of Melt Agglomerate Structure in Conductive Polymer Composites Filled with Carbon Black[J].Chemical Research In Chinese Universities,2006,27(3):583-585. |
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| Authors: | WU Gang ZHENG Qiang |
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| Institution: | Department of Polymer Science & Engineering,Hangzhou 310027,China |
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| Abstract: | The study on the correlation between time dependence of electrical resistivity and dynamic storage modulus for carbon black(CB) filled polymer composites was carried out. With the increase of the dynamic storage modulus(G′) as well as the normalized dynamic storage modulus(G′c /G′p),the volume resistivity(ρ) deceases with the increase of annealing time beyond the Tm of the composites. It is believed that this phenomenon can be used for examining the development of agglomerate structure of filled composites and illustrating the micro-mechanism of the NTC behavior. It is assumed that melting treatment to CB filled composites results in a higher modulus and lower resistivity due to more even local dispersion of the particles and formation of perfect CB network structure within the matrix. |
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| Keywords: | CB filled conductive composite NTC behavior Dynamic viscoelasticity |
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