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Study on Synthesis and Properties of Waterborne UV-Curable Epoxy Resin Emulsion
Author(s): 
Pages: 62-65
Year: Issue:  1
Journal: Paint & Coatings Industry

Keyword:  双酚A环氧树脂水性环氧丙烯酸树脂UV固化改性;
Abstract: 利用双羟基化合物对环氧丙烯酸酯(EA)进行改性,降低其黏度,再利用顺丁烯二酸酐与EA反应引入亲水性基团,中和成盐后制得UV固化水性环氧树脂乳液(EB).研究了改性剂对黏度的影响,确定了树脂的适宜反应条件,讨论r中和剂种类、羧基含量及巾和度埘乳液性能的影响.结果表明:采用PPG600作为改性剂,能显著降低乳液的黏度.对EB树脂的性能研究表明:随着羧基含量和巾和度的提高,乳液分散性、稳定性、硬度、拉伸强度增强,但耐水性下降.最终选择三乙胺作为中和剂,控制顺酐的投料量为15%~17.5%,中和度在80%~90%之间能得到综合性能较好的乳液.
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