环氧树脂/桐油酸酐/蒙脱土纳米复合材料固化动力学  

Curing Reaction Kinetics of EP/TOA/Org-MMT Nanocomposites

作　　者：沈时骏[1] 鲍素萍[1] 翟红波[1] 徐卫兵[1,2] 

机构地区：[1]合肥工业大学化工学院,合肥230009 [2]中国科学技术大学高分子科学与工程系合肥

出　　处：《应用化学》2004年第2期130-134,共5页Chinese Journal of Applied Chemistry

基　　金：安徽省自然科学基金项目 ( 990 463 17)

摘　　要：用自制的有机蒙脱土 ,采用浇模固化成型法制备了环氧树脂 /桐油酸酐 /蒙脱土纳米复合材料。用DSC跟踪环氧树脂固化行为 ,用XRD分析有机蒙脱土的层间距变化 ,确定产物为部分剥离型的纳米复合材料。用Flynn Wall Ozawa、Kissinger及Crane方法对树脂进行动态测试分析 ,发现有机蒙脱土对体系固化有促进作用 ,使反应更易进行 ;并求解出活化能和反应级数等动力学参数。The nanocomposites of epoxy resin/eleostearic anhydride/montmorillonite(EP/TOA/MMT) were prepared and studied by XRD and DSC. The XRD results showed it was an exfoliated nanocomposite. The dynamic curing information was obtained by nonisothermal DSC. It was found that addtion of montmorillonite accelerated the curing rate and facilitated the reaction. The activation energy, reaction order and other kinetic parameters were calculated by Flynn-Wall-Ozawa, Kissinger, Crane methods.

关 键 词：环氧树脂 固化反应 动力学 DSC 

分 类 号：O631[理学—高分子化学]