用FTIR研究环氧树脂的固化反应  

Study on Curing Reaction of Epoxy Resin by FTIR

作　　者：孟平蕊[1] 李良波[1] 鲍猛[1] 芦燕 宋桂兰[1] 

机构地区：[1]山东建材学院应用化学系,济南250022

出　　处：《合成树脂及塑料》1999年第5期17-19,共3页China Synthetic Resin and Plastics

摘　　要：采用傅里叶变换红外光谱研究了双酚A型环氧树脂/马来酸酐固化剂/咪唑类固化催化剂体系的固化反应。结果表明,固化催化剂的用量在0.2％～2.0％(质量分数)时,对环氧树脂与固化剂的交联反应可起到明显的催化作用;大于2.0％时反应机理发生显著变化,环氧树脂与固化催化剂优先反应,抑制环氧树脂与固化剂的反应。The curing reaction of epoxy resin (DGEBA) was studied with Maleic anhydride (MA) as curing agent and 4 - methyl - imidazole (MI) as the curing catalyst. It was proven that MI obviously catalyzed the crosslinking reaction between the DGEBA and curing agent MA if the dosage of MI was in the range of 0.20% - 2.00% . However, the reaction mechanism changed evidently when the dosage of MI was larger than 2.00% , in such a case, the prior reaction between DGEBA and MI suppressed the desired curing reaction between DGEBA and MA.

关 键 词：环氧树脂 固化反应 固化 催化剂 FTIR 

分 类 号：TQ323.502[化学工程—合成树脂塑料工业]