PTC effect of polyethylene/foliated graphite nanocomposites

被引：9

作者：

Chen, GH ^{[1
]}

Lu, JR ^{[1
]}

Wu, DJ ^{[1
]}

机构：

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

来源：

JOURNAL OF MATERIALS SCIENCE | 2005年 / 40卷 / 18期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1007/s10853-005-1119-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The PTC effect of polyethylene and foliated graphite (FG) nanocomposites are discussed. The foliated graphite (FG) is prepared by exfoliation of expanded graphite which possess high aspect ratio with diameter ranging from 5 to 20 μm and average thickness of 40nm. For conventional conductive filler such as metallic powders and conventional graphite, low conductive filler concentration composite show a high room resistivity and a low PTC intensity. As a result after the PTC transition, resistivity decreases with increasing temperature, which is defined as the negative temperature coefficient (NTC) effect.

引用

页码：5041 / 5043

页数：3

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