桐马酸酐与环氧树脂的非等温固化反应动力学  

Non-isothermal curing kinetics of Tung-maleic anhydride and epoxy resin

作　　者：黄坤[1] 夏建陵[1,2] 李梅[1] 林贵福[1] 连建伟[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,江苏南京210042 [2]国家林业局林产化学工程重点开放性实验室,江苏南京210042

出　　处：《热固性树脂》2011年第1期11-15,共5页Thermosetting Resin

基　　金：国家自然科学基金(30771691);国家自然科学基金青年科学基金项目(31000280);国家科技支撑计划(2009BADB1B10)

摘　　要：采用Málek法对桐马酸酐与双酚A环氧树脂E-51体系(含有1%质量分数的DMP-30)的非等温固化反应动力学进行了研究。通过机理函数esták-Berggren方程很好地模拟了真实的固化反应过程。等转化率法求得反应活化能为69.78 kJ/mol。指前因子A的值为4.567×108 min-1,n和m的值分别为1.082和0.456。根据得到的固化动力学方程计算可知,在固化温度为137.05℃时达到98%固化度的固化时间为115 min。The non-isothermal curing kinetics of Tung-maleic anhydride and epoxy resin E-51 blend with 1% DMP-30 by weight was studied by Málek method.The real curing process was stimulated well using mechanism equation esták-Berggren.The active energy calculated by iso-conversion ratio method was 69.78 kJ/mol.The pre-exponential factor A was 4.567×108 min-1 and the values of n and m were 1.082 and 0.456,respectively.Based on the curing kinetic equation obtained,the calculated curing time of the system with 98% conversion rate was 115 minutes at the curing temperature 137.05 ℃.

关 键 词：环氧树脂 固化剂 桐马酸酐 非等温固化动力学 Málek法 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]