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Preparation and Properties of Self-Emulsifying Waterborne Epoxy Emulsion
Author(s): 
Pages: 39-43
Year: Issue:  1
Journal: Paint & Coatings Industry

Keyword:  季铵盐乳化剂环氧乳液粒径耐盐雾;
Abstract: 采用环氧树脂E-51与甲基二乙醇胺(MDEA)在加热条件下进行反应,再利用乙酸中和叔胺,制备出反应型季铵盐乳化剂树脂;将该乳化剂树脂与环氧树脂E-20按照一定比例在一定温度下进行接枝反应,得到水性环氧乳液.对环氧乳液进行了FT-IR表征,考察了反应型季铵盐乳化剂树脂与环氧树脂E-20的比例、反应温度、反应时间对水性环氧乳液稳定性、粒径、配漆后涂膜性能等方面的影响.研究结果表明:在60~ 70℃下,反应型季铵盐乳化剂树脂加量为8%时,制备的水性环氧乳液具有较好的贮存稳定性,与水性环氧固化剂配漆后的涂膜具有较好的耐盐雾、耐酸碱性能和良好的力学性能.
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