核壳型丙烯酸聚氨酯乳液的固化与涂膜性能  

Studies on curing and film properties of core/shell acrylic-polyurethane emulsion

作　　者：易英[1] 叶发银[1] 黄畴[1] 官建国[2] 杨梅[1] 胡丽红[1] 

机构地区：[1]武汉理工大学化学工程学院,武汉430070 [2]武汉理工大学材料复合新技术国家重点实验室,武汉430070

出　　处：《华中师范大学学报（自然科学版）》2008年第1期72-76,共5页Journal of Central China Normal University：Natural Sciences

基　　金：国家“863”资助项目(2006AA03Z46)

摘　　要：制备了低交联度的核壳型丙烯酸聚氨酯乳液.采用双酚A型环氧树脂(E-44)和三羟甲基丙烷三(3-丙烯亚胺)丙酸酯(TMPTA-MAZ)作为乳液的固化剂,研究了核壳型丙烯酸聚氨酯乳液的固化与涂膜性能.研究表明:E-44和TMPTA-MAZ均可作为核壳型丙烯酸聚氨酯乳液的固化剂.两种不同类型的固化剂均能使乳液室温成膜,涂膜均一透明.TMPTA-MAZ比E-44更适合作为核壳型丙烯酸聚氨酯乳液的固化剂.当加入适量的固化剂时,涂膜的耐水、耐溶剂性以及力学性能都有很大程度的提高.The low degree of crosslinking acrylic polyurethane core-shell emulsion was prepared. Studies were focus on the curing process and coating performance of the coreshell emulsion by using bisphenol A epoxy resin （E-44） and trimethylolpropane tri（3- propylene imine） propionate （TMPTA-MAZ） as curing agents respectively. The results showed that E-44 and TMPTA-MAZ both can be used as curing agents for the core-shell emulsion. They can cure the emulsion to transparent film at room temperature. Moreo- ver, as a curing agent, TMPTA MAZ was more suitable than E-44. When adding proper amount of curing agents, the coating properties such as water resistantance, solvent-resistance and mechanical properties was to a large extent improved.

关 键 词：丙烯酸聚氨酯 核壳乳液 氮丙啶 固化 

分 类 号：O632.5[理学—高分子化学]