Friction and wear behaviour of low-density polyethylene matrix composites with positive temperature coefficient characteristics

被引：0
|
作者：
Dong, G.N. [1 ]
Li, J. [1 ]
Xie, Y.B. [1 ]
Yu, L. [1 ]
机构：
[1] Xi'an Jiaotong Univ., Xi'an 710049, China
来源：
Mocaxue Xuebao/Tribology | 2001年 / 21卷 / 01期
关键词：
Composite materials - Conductive plastics - Low density polyethylenes - Positive temperature coefficient - Wear of materials;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Low-density polyethylene (LDPE) matrix conductive composites containing carbon black (CB) were prepared by mold compression. The effect of friction-induced melting on the friction and wear behaviour of the composites was explored. As the results, the electric conductivity of the composite is highly dependent on temperature; the auxiliary electric conductive agents such as polytetrafluoroethylene (PTFE) and ekonol have no effect on the PTC characteristic of the composite. A periodical decrease of the friction coefficient has been observed under a relatively high pv value in sliding of the composite pin against AISI1045 steel disc. This is related to the friction-induced melting of the LDPE matrix during the sliding process.
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页码：63 / 66
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