摘要
通过甲氧基聚丙二醇环碳酸酯与二乙烯三胺反应制备线型非异氰酸酯聚氨酯预聚体,再与环氧树脂作用形成互穿聚合物网络的杂化非异氰酸酯聚氨酯-环氧树脂涂膜。采用FTIR对产物的结构进行了表征,测定了涂膜的性能,并对涂膜断面进行了扫描电镜分析。该涂膜硬度(铅笔)≥H;耐冲击性为4.9J;对水、汽油、盐雾分别在96、48、500h不起泡、不变色、不脱落,对金属底材有优异的附着力。
The non-isocyanate polyurethane（NIPU）-epoxy resins were prepared by methoxyl PPG cyclic carbonate、diethylenetriamine（DETA）and epoxy resins.The structure of NIPU was confirmed using FTIR.The microscopic structure of the resins was observed by SEM.The hardness（pencil）of the coating membrane exhibits the H type.Dent resistance was 4.9 J.The coating would not bubbling,discoloring and peeling in water（96 h）,gasoline（48 h）and salt fog（500 h）,and it has an excellent adhesion for metal substrate.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2010年第7期639-641,共3页
Fine Chemicals
基金
深圳市科技计划项目(SY200806270080A)~~
关键词
非异氰酸酯聚氨酯
环氧树脂
环碳酸酯
互穿聚合物网络
功能材料
non-isocyanate polyurethane
epoxy resins
cyclic carbonate
mutual crosslinking network
functional materials
