蒙脱土改性环氧树脂及其复合材料性能研究  

Study on properties of epoxy resin modified by MMT and composites

作　　者：秦泽云[1,2] 张彦飞[1,2] 赵贵哲[1,2] 刘亚青[1,2] 

机构地区：[1]中北大学山西省高分子复合材料工程技术研究中心,山西太原030051 [2]中北大学材料科学与工程学院,山西太原030051

出　　处：《中国胶粘剂》2012年第1期49-52,共4页China Adhesives

基　　金：山西省科技创新计划项目(2009101004)

摘　　要：以蒙脱土(MMT)作为EP(环氧树脂)的改性剂制备EP/MMT纳米复合材料。考察了MMT含量对EP/MMT体系的凝胶时间、黏度和力学性能等影响。结果表明:MMT的加入明显缩短了EP体系的凝胶时间,并显著缩短了EP体系达到高黏度的时间;当w(MMT)=4%时,EP/MMT纳米复合材料的力学性能相对最好,其浇铸体的拉伸强度、弯曲强度和冲击强度分别为85 MPa、140 MPa和35 kJ/m2,其复合材料的拉伸强度和弯曲强度分别为160 MPa和200 MPa。With montmorillonite （MMT） as modifier of epoxy resin （EP）, an EP/MMT nano-composite was made. The influences of MMT contents were investigated on gelation time, viscosity and mechanical properties of EP/MMT systems. The results showed that the adding MMT could obviously reduce gelation time of EP system,and could obviously reduce time of EP system to achieve high viscosity. The EP/MMT nano-composite had reversely optimal mechanical properties because the tensile strength ,bend strength and impact strength of resin casting were 85 MPa, 140 MPa and 35 kJ/m2 respectively,and the tensile strength and bend strength of composite were 160 MPa and 200 MPa respectively when mass fraction of MMT was 4%.

关 键 词：环氧树脂 蒙脱土 复合材料 凝胶时间 黏度 力学性能 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业] TQ050.43