新型聚天门冬氨酸酯的合成及其在弹性聚氨酯涂料中的应用  

Synthesis and Application of New Polyaspartic Ester in Elastic Polyurethane Coatings

作　　者：薛守成[1] 席发臣[1] 冯俊忠[1] 陈小庆[1] 李清材[1] 王国炜[1] 

机构地区：[1]北方涂料工业研究设计院,兰州730020

出　　处：《现代涂料与涂装》2009年第11期1-4,共4页Modern Paint & Finishing

摘　　要：通过二乙烯三胺与马来酸二丁酯的Michael加成反应,合成了一种新型脂肪族多元仲胺-聚天门冬氨酸酯(DETA-PAEs)。对照研究了DETA-PAEs和3,3′-二氯-4,4′-二氨基二苯基甲烷(MOCA)作为弹性聚氨酯涂料固化剂在反应凝胶时间、涂层的拉伸强度、断裂伸长率以及耐黄变等性能方面的差异,证明DETA-PAEs的综合性能优于MOCA。A new aliphatic poly （secondary amine）-polyaspartic ester （DETA-PAEs） was prepared by the Michael addition reaction of diethylene triamine with dibutyl maleate. The effects of DETA-PAEs on the gel time of reaction, as well as the tensile strength, elongation at break and yellowing resistance of coatings are compared with that of MOCA （3,3＇-dichloro-4,4＇-diamino diphenyl methane）. The results indicated that the comprehensive performances of DETA-PAEs were better than that of MOCA.

关 键 词：聚天门冬氨酸酯 二乙烯三胺 MOCA 弹性聚氨酯涂料 

分 类 号：TQ633[化学工程—精细化工]