摘要
通过干、湿2种方法分别制备了超高分子量聚乙烯(UHMWPE)/碳化硅(SiC)复合材料,采用热重分析、扫描电镜、摩擦磨损测定等表征手段,研究了不同方法制备的复合材料中SiC粒子在UHMWPE基体中的分散情况,以及2种方法对复合材料摩擦磨损和力学性能的影响。结果表明,湿法制备的复合材料中SiC粒子在UHMWPE基体中分散均匀,团聚现象得到改善。在干摩擦条件下,湿法制备的UHMWPE/SiC复合材料的稳态摩擦系数最低,磨损率最小,UHMWPE的粘着磨损、磨粒磨损得到有效改善。湿法制备的复合材料力学性能优于干法。
Ultra high molecular weight polyethylene（UHMWPE）/silicon carbide（SiC）composite materials were prepared by dry and wet methods respectively.Thermogravimetric analysis（TGA）,scanning electron microscope（SEM）and friction and wear characterization methods were used to characterize dispersion of SiC particles in the UHMWPE matrix and the effect of SiC particles on tribological and mechanical properties of composite materials.Results show that a homogenous dispersion of SiC is obtained from composite materials prepared via wet method.Under dry friction condition,UHMWPE/SiC composites prepared by wet method exhibit lower steady friction coefficient,wear rate and better mechanical properties.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2015年第7期69-74,共6页
Polymer Materials Science & Engineering
关键词
超高分子量聚乙烯
碳化硅
摩擦磨损
力学性能
ultra high molecular weight polyethylene
silicon carbide
friction and wear
mechanical properties
作者简介
通讯联系人：刘春林，主要从事聚合物的功能化及高性能化研究，E-mail：chunlin@cczu．edu．cn．
