汽车风挡玻璃用聚氨酯密封胶黏合性能研究  

Study on bonding property of polyurethane sealant for automobile windshield glass

作　　者：刘勇彪[1] 林敏[1] 王菲[2] Liu Yongbiao;Lin Min;Wang Fei(Sichuan College of Architectural Technology,Deyang 618000,Sichuan,China;Hebei Institute of Mechanical and Electrical Technology,Xingtai 054000,Hebei,China)

机构地区：[1]四川建筑职业技术学院,四川德阳618000 [2]河北机电职业技术学院,河北邢台054000

出　　处：《中国胶粘剂》2021年第7期58-63,共6页China Adhesives

基　　金：四川建筑职业技术学院2019年院级课题(2019RW02)。

摘　　要：研究了汽车风挡玻璃用聚氨酯密封胶黏合性能,分析了聚氨酯密封胶受各因素干扰后黏合性能变化情况。使用溶液聚合法,在不同种类多元醇、催化剂、硅烷偶联剂以及不同含量扩链剂配制硅烷联合改性聚氨酯密封胶,分析不同情况对聚氨酯密封胶黏合性能的影响,以及不同温度、固化时间对聚氨酯黏合性能的影响。研究结果表明:选择聚碳酸酯多元醇混合聚醚多元醇,二月桂酸二丁基锡和二吗啉基二乙基醚为催化剂[m(二月桂酸二丁基锡)∶m(二吗啉基二乙基醚)=3∶7],氨基硅烷为硅烷偶联剂,w(扩链剂)=10%时,聚氨酯密封胶的黏合性能较好,而且低温环境下聚氨酯密封胶仍旧保持良好的粘接性,完全固化仅需3天。The bonding properties of polyurethane sealant for automobile windshield glass were studied,and the changes of bonding properties of polyurethane sealant affected by various factors were analyzed.Using the solution polymerization method,the silane combination modified polyurethane sealant was prepared with different kinds of polyols,catalysts,silane coupling agents and different contents of chain extenders.The effects of different conditions on the bonding properties of polyurethane sealant,as well as the effects of different temperature and curing time on the bonding properties of polyurethane sealant were analyzed.The research results showed that,when selecting polycarbonate polyol mixed with polyether polyol,dibutyltin dilaurate and dimorpholine diethyl ether as catalyst[m(dibutyltin dilaurate)∶m(dimorpholinyl diethyl ether)=3∶7],amino silane as silane coupling agent,w(chain extender)=10%,the bonding properties of polyurethane sealant were relatively good.Furthermore,the polyurethane sealant still maintained good bonding properties in the low temperature environment,and it only took 3 days to fully cure.

关 键 词：汽车 风挡玻璃 聚氨酯 密封胶 黏合性能 多元醇 

分 类 号：TQ436[化学工程]