Page 133 - 2021涂料产业研究报告

用互联网科技和数据赋能传统产业

常温自固化水性环氧树脂乳液的

制备及性能研究

文 汪庆宇
浙江大桥油漆有限公司

摘 要：通过乙醇胺和双酚A环氧树脂E-20反应，在环氧树脂中引入亲水基团，然后再使用自制的乳化剂去乳化改性的
环氧树脂。经相反转后，制备出一种热塑型的、可单组份使用的大分子环氧乳液。该乳液粒径小且均匀，粘度适中，
不加固化剂也可在常温下快速成膜，并且漆膜拥有良好的力学性能。经测试，成膜性能具体表现为：硬度为H；附着力
0级；抗冲击力50cm；耐水240 h；耐酸240h；耐碱性72 h；耐中性盐雾300 h。

关键词：大分子环氧乳液；自固化；自乳化

Synthesis and Properties Research of fast Self-curing

Waterborne Epoxy Resin Emulsion

Abstract:Through the reaction of ethanolamine and bisphenol A epoxy resin E-20, hydrophilic groups are
introduced into the epoxy resin, and then the self-made emulsifier is used to emulsify the modified epoxy resin.
After phase reverse process, a thermoplastic macromolecular epoxy emulsion with small and uniformparticle size
and moderateviscosity, was prepared.The emulsion can be quickly cured at room temperature without curing agent

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