Covalently connecting nanoparticles with epoxy matrix and its effect on the improvement of tribological performance of the composites

被引：21

作者：

Luo, Y

Rong, MZ ^{[1
]}

Zhang, MQ

机构：

[1] Zhongshan Univ, Inst Mat Sci, Guangzhou 510275, Peoples R China

[2] Zhongshan Univ, Minist Educ, Key Lab Polymer Composite & Funct Mat, Guangzhou 510275, Peoples R China

来源：

POLYMERS & POLYMER COMPOSITES | 2005年 / 13卷 / 03期

关键词：

D O I：

10.1177/096739110501300304

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Graft polymerization of glycidyl methacrylate onto nano-SiC particles by means of soapless emulsion polymerization results in composite particles consisting of SiC core and polymeric shell, in which polyglycidyl methacrylate (PGMA) is bonded to the nanoparticles by the double bonds introduced during the pretreatment with a coupling agent. Compared with untreated nano-SiC particles, the grafted versions exhibit improved dispersibility. Besides, they are able to establish chemical bonding between the fillers and matrix through the reaction between the epoxide groups and the curing agent when being compounded with epoxy. As a result of these. advantages, the epoxy composites filled with PGMA grafted nano-SiC particles possess rather high sliding wear resistance and low frictional coefficient at low filler loading, which cannot be observed in untreated SiC nanoparticles/epoxy system.

引用

页码：245 / 252

页数：8

共 20 条

[1] POLY(ETHYL ACRYLATE) LATEXES ENCAPSULATING NANOPARTICLES OF SILICA .2. GRAFTING PROCESS ONTO SILICA [J].