Internal field emission and conductivity relaxation in carbon nanofiber filled polymer system

被引：13

作者：

He, Lin-Xiang ^{[1
]}

Tjong, Sie-Chin ^{[1
]}

机构：

[1] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China

来源：

SYNTHETIC METALS | 2010年 / 160卷 / 19-20期

关键词：

Electrical conductivity; Relaxation; Nanocomposite; Carbon nanofiber; ELECTRICAL-CONDUCTIVITY; AC CONDUCTIVITY; COMPOSITES; BEHAVIOR; TRANSPORT; DC;

D O I：

10.1016/j.synthmet.2010.07.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conducting polymer nanocomposites based on high density polyethylene (HDPE) and carbon nanofiber (CNF) were fabricated by melt compounding. The conductivity of the nanocomposites was found to follow the percolation behavior. Effect of electric field on the electrical conduction behavior of such composites was investigated. The results revealed two competing processes in the composite: internal field emission and electrical conduction relaxation. The former is dominant at lower filler concentrations or under low electric field, while the latter is pronounced under the application of strong electric field. Further, the relaxation time is nearly independent on the electric field strength but decreased with increasing temperature. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2085 / 2088

页数：4

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