耐高温聚酰亚胺导电复合材料的性能  

Heat-Resistant Polyimide Electrical Conductive Composites

作　　者：郭乔辉[1] 周小平[1] 王素琴[1] 付宏伟[1] 李永红[1] 侯豪情[1] 

机构地区：[1]江西师范大学化学化工学院,江西南昌330027

出　　处：《高分子材料科学与工程》2009年第2期52-54,58,共4页Polymer Materials Science & Engineering

基　　金：国家科技部"973"前期研究专项项目资助(2004CCA04700);自然科学基金(24064001);江西省教育厅科技重点项目(2007-126)

摘　　要：采用涂膜法制备了以碳纳米管(CNTs)、乙炔黑和石墨粉为导电填料的聚酰亚胺(PI)导电复合材料,研究了其电学性能、力学性能和粘接性能。结果显示,PI/CNTs导电复合材料有较好的综合性能。Polyimide （PI） electrical conductive composites were prepared from the corresponding PI precursor and electrical conductive fillers under the names of carbon nanotubes （CNTs）, graphite and acetylene black by solution cast and subsequent heat amidation. The polyimide precursor, poly（amic acid） （PAA）, was synthesized from 3, 4, 3＇, 4＇-biphenyltetracar- boxylic dianhydride（BPDA） and 4,4＂-diaminodiphenyl ether（ODA） with intense mechanical stirring at - 5℃ Scanning electron microscope （SEM）, electronic stretching tester, digital ohmmeter was used to characterize the electrical, mechanical and adhesive properties of the as-prepared PI electrical conductive composites, respectively. The experimental results show that the electrical conductive composite of PI/CNTs has better electrical, mechanical and adhesive properties than the other two composites.

关 键 词：导电胶 导电填料 力学性能 聚酰亚胺 

分 类 号：TB35[一般工业技术—材料科学与工程]