Effects of photoaging on the tribological properties of engineering plastics

被引：2

作者：

Duan, Haitao ^{[1
]}

Chen, Wu ^{[1
]}

Meng, Hua ^{[2
]}

Liu, Jianfang ^{[1
,3
]}

Gu, Kali ^{[1
]}

Li, Jian ^{[1
]}

机构：

[1] Wuhan Res Inst Mat Protect, R&D Ctr, Wuhan 430030, Hubei, Peoples R China

[2] City Univ Hong Kong, MBE Dept, Kowloon, Hong Kong, Peoples R China

[3] Wuhan Polytech Univ, Wuhan 430023, Peoples R China

来源：

POLYMERS FOR ADVANCED TECHNOLOGIES | 2014年 / 25卷 / 09期

基金：

中国国家自然科学基金;

关键词：

wear mechanism; photoaging; plastic deformation; MECHANICAL-PROPERTIES; POLYMER TRIBOLOGY; DEFORMATION;

D O I：

10.1002/pat.3337

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Ball-on-disk tests were performed to investigate the effects of photoaging on the tribological properties of engineering plastics under dry sliding. Results exhibit that different molecular structures of plastics result in different aging morphologies, and ultra high molecular weight polyethylene has better resistance to photoaging than polyformaldehyde (POM). However, POM has better wear resistance before and after the photoaging. Marked increase of the width and depth of wear tracks is observed after aging. Analysis of worn surface has revealed that photoaging significantly affects the wear mechanism of ultra high molecular weight polyethylene and POM. Although the major wear mechanism before the aging of materials is identified as plastic deformation and adhesive wear, it becomes quite complicated when the materials experienced photoaging. Such complex wear mechanism hence deteriorates the tribological performance of the engineering plastics. Copyright (C) 2014 John Wiley & Sons, Ltd.

引用

页码：975 / 980

页数：6

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