二苯甲烷双马来酰亚胺型芳香胺固化剂的合成与固化环氧树脂研究  

Synthesis and performance of N,N'-4,4'-diphenylmethylenebismaleimide type aromatic amine curing agent for epoxy resin

作　　者：高念[1] 张思思[1] 李文翔[1] 闫清泉 管蓉[1] 

机构地区：[1]湖北大学化学化工学院,湖北武汉430062

出　　处：《粘接》2017年第11期23-27,共5页Adhesion

摘　　要：用二苯甲烷双马来酰亚胺(BDM)与二氨基二苯甲烷(DDM)为原料经迈克尔加成反应制备了固化剂(BDM-DDM),采用红外光谱(FTIR)验证了分子结构。通过动态差示扫描量热法(DSC)确定了该固化剂固化环氧树脂E-44的固化工艺并对其固化动力学进行了研究。由Kissinger方程、FWO方程计算出固化反应活化能分别为37.3 k J/mol、49.9 k J/mol,并结合Crane方程计算出反应级数为0.98。用BDM-DDM固化的环氧树脂热失重(TGA)初始分解温度达到了356℃,有良好的热稳定性。A new curing agent（BDM-DDM） for epoxy resin was synthesized by using the Michael addition reaction between diphenylmethylene-bismaleimide（BDM） and diaminodiphenylmethane（DDM）.The chemical structure of BDMDDM was characterized by FTIR.The curing performance and kinetics of E-44/BDM-DDM were studied by DSC.The Ea values evaluated according to Kissinger model and FWO model are 37.3 and 49.9 k J/mol,respectively,and the calculated reaction order is 0.98 based on Crane method.The TG result shows that the cured resin possesses preferable thermostability.

关 键 词：二苯甲烷双马来酰亚胺 二氨基二苯甲烷 环氧树脂 固化动力学 

分 类 号：TQ433.437[化学工程]