含羧基/环氧树脂的丙烯酸酯共聚物乳液的制备与交联(Ⅳ)——混合乳液的制备及其中温交联  

Preparation and Crosslinking of Acrylate Copolymer Latex Containing Carboxyls/Epoxy Resin (Ⅳ) ——Preparation and Crosslinking of the Mixed Latex Under Moderate Temperature

作　　者：余鼎声[1] 刘淑霞[1] 焦书科[1] 

机构地区：[1]北京化工学院应用化学系,北京100029

出　　处：《高等学校化学学报》1993年第5期725-728,共4页Chemical Journal of Chinese Universities

基　　金：北京市自然科学基金

摘　　要：研究了含羧基丙烯酸酯乳液和含环氧树脂乳液的混合和交联反应。实验结果表明,混合乳液具有较高的机械稳定性,在室温下可以稳定贮存5个月以上,证实了在叔胺促进剂作用下,交联固化机理为单酯化反应,混合乳液可在中温(<100℃)下固化,涂膜具有优良的物理性能。In this paper the mixting process and crossh'nking reactions of the acrylate copolymer latex containing carboxyls and the latex containing epoxy resin have been investigated. The experimental results showed that the mixed latex has a good mechanical stability, whose storage life can reach 5 months under ambient temperature. It is demonstrated that benzyl dimethyl amine is a preferable accelerator for the cTosslinking reaction and the crosslinking mechanism is mainly a mono-esterification process in presence of benzyl dimethyl amine by the analysis of mass spectra and IR. The mixed latex could be cured under moderate temperature (<100℃). The coated film of mixed latex exhibits good physical properties than those of initiate latexes.

关 键 词：乳液 环氧树脂 丙烯酸酯 共聚物 

分 类 号：TQ630.1[化学工程—精细化工]