Fabrication of highly ordered polymer/graphite flake composite with eminent anisotropic electrical property

被引：56

作者：

Chen, Guohua ^{[1
]}

Wang, Haiquan ^{[1
]}

Zhao, Weifeng ^{[1
]}

机构：

[1] Huaqiao Univ, Dept Mat Sci & Engn, Quanzhou 362021, Peoples R China

来源：

POLYMERS FOR ADVANCED TECHNOLOGIES | 2008年 / 19卷 / 08期

关键词：

conducting composite; graphite flakes; alignment; anisotropy;

D O I：

10.1002/pat.1093

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Highly ordered polyester/graphite flake composite has been fabricated via orienting the graphite flakes within a polymer matrix. The randomly dispersed graphite flakes in a polyester prepolymer were induced twice along the electric field direction, followed by the cross-linking of the prepolymer. Scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis showed that the graphite flakes in the resulting composites were aligned parallel to each other. This structure anisotropy of the composite appeared to be a significant electrical anisotropic property with five to six orders of magnitude. Analysis showed that field-induced torque caused by the polarization of graphite flakes undergone at electric field was a main force inducing the orientation of the graphite flakes. Copyright (C). 2008 John Wiley & Sons, Ltd.

引用

页码：1113 / 1117

页数：5

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