摘要
本文应用ＤＳＣ、ＦＴ－ＩＲ对咪唑固化双酚Ａ二缩水甘油醚型环氧树脂的固化反应机理进行了研究。结果表明，咪唑／二缩水甘油醚型环氧树脂的固化反应是分两步独立进行的，第一步是环氧基的加成反应，第二步是环氧基的催化聚醚反应。对咪唑固化四缩水甘油胺型、缩水甘油酯与脂环型环氧树脂的固化反应特征、动力学及其固化反应活性也进行了研究。
The curing mechanism of bisphenol-A diglycidyl ether type epoxy resin (DGEBA) cured with Imidazole (IMI) was studied by DSC,FT-IR.The results of DGEBA cured with IMI presented that the whole curing mechanism could be seperated into two stages.The first stage was addition and the second one was catalytic polyether reaction. The total curing characteristic,apparent activation energy and co-curing reactivity of tetra-glycidyl amide,glycidyl ester and aliphatic cyclo type epoxy resins cured with IMI were also investigated.
出处
《化学与粘合》
CAS
1998年第2期63-66,共4页
Chemistry and Adhesion
关键词
环氧树脂
咪唑
固化反应
反应机理
固化剂
epoxy resin
imidazole
curing reaction
curing mechanism
reactivity
