Low temperature electrical conductivity of low-density polyethylene/carbon black composites

被引：0
|
作者：
T. M. Tawalbeh
S. Saq’an
S. F. Yasin
A. M. Zihlif
G. Ragosta
机构：
[1] University of Jordan,Department of Physics
[2] Institute of Chemistry and Technology of Polymers (ICTP),undefined
[3] CNR,undefined
来源：
Journal of Materials Science: Materials in Electronics | 2005年 / 16卷
关键词：
Electrical Conductivity; Polyethylene; Electronic Material; Temperature Coefficient; Electrical Characteristic;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The study deals with the electrical characteristics of carbon black/low-density polyethylene (CB/LDPE) composites of various CB filler concentrations (10, 15, and 20 wt.%). The DC electrical conductivity was studied as a function of filler concentration in low temperature range 25–285 K. It was found that the composites exhibit negative temperature coefficient of resistivity (TCR) at low temperatures and high enhancement in the electrical conductivity with both temperature and carbon black concentration. The observed increase of conductivity with the filler concentration was interpreted through the percolation theory. The dependence of the electrical conductivity of the given composites on temperature (25–285 K) was analyzed in terms of a formula in consistence with Mott hopping mechanism.
引用
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页码：351 / 354
页数：3
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