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

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (5): 725.

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

余鼎声, 刘淑霞, 焦书科

北京化工学院应用化学系, 北京 100029

收稿日期:1992-05-07 修回日期:1992-09-26 出版日期:1993-05-24 发布日期:1993-05-24
通讯作者: 余鼎声
基金资助:
北京市自然科学基金

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

YU Ding-Sheng, LIU Shu-Xia, JIAO Shu-Ke

Dept.of Applied Chem., Beijing Institute of Chem. Techn., Beijing, 100029

Received:1992-05-07 Revised:1992-09-26 Online:1993-05-24 Published:1993-05-24

摘要/Abstract

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。

关键词: 乳液的混合交联, 中温固化, 涂膜物性

Abstract: 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.

Key words: Mixing and crosslinking of latex, Crosslinking under moderate temperature, Physical properties of coating film

TrendMD:

余鼎声, 刘淑霞, 焦书科. 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. 高等学校化学学报, 1993, 14(5): 725.

YU Ding-Sheng, LIU Shu-Xia, JIAO Shu-Ke . Preparation and Crosslinking of Acrylate Copolymer Latex Containing Carboxyls/Epoxy Resin (Ⅳ) ——Preparation and Crosslinking of the Mixed Latex Under Moderate Temperature. Chem. J. Chinese Universities, 1993, 14(5): 725.