文献类型：期刊文献

中文题名：混合型环氧树脂水分散液的制备与表征

英文题名：Synthesis and Characterrization of the Aqueous Dispersions of Mixed Epoxy Resin

作者：陈凤婷[1];丁莉[1];王贵友[1];胡春圃[1]

机构：[1]华东理工大学材料科学与工程学院超细材料制备与应用教育部重点实验室 上海 200237

年份：2004

卷号：17

期号：4

起止页码：561

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;CSCD:【CSCD2011_2012】；

基金：上海市科委纳米专项基础研究项目资助(0212nm008)

语种：中文

中文关键词：环氧树脂;水分散液;接枝共聚物;环氧值;混合;环氧基团;甲基丙烯酸;证明;分子量;苯乙烯

外文关键词：epoxy resin;St/MAA copolymer;aqueous dispersion;particle size;surface property

摘要：以苯乙烯和甲基丙烯酸的共聚物[P(St-co-MAA)]作为分散剂和高分子量的环氧树脂在120℃下 混合,制备了环氧树脂水分散液。测定了环氧树脂与P(St-co-MAA)混合前后的环氧值,证明共聚物中的部 分羧基和环氧基团发生反应,形成了接枝共聚物,P(St-co-MAA)与环氧树脂之间的相容性良好,从而制得 稳定性良好而且粒径较小的水分散液。同时考察了共聚物组成和环氧树脂分子量对水分散液以及成膜后性 能的影响。
Waterborne epoxy resin was prepared by mixing the epoxy resin and styrene /methacrylic acid copolymer [P(Stco -MAA)] at 120℃. It was found that the epoxy groups reacted with the carboxy groups to form same graft copolymers during the mixing process by the measuring different epoxy values before or after mixing) which is conducive to obtaining the stable aqueous dispersions with small particle size(133 nm). The effects of the molecular weight of bisphenol-A type epoxy resin and the composition of P(St- co -MAA) on some physical properties of aqueous dispersions and their films were also studied.