为提高紫外光(UV)固化水性聚氨酯丙烯酸酯(WPUA)的综合性能,用异佛尔酮二异氰酸酯(IPDI),聚醚/聚酯二元醇混合软段、季戊四醇三丙烯酸酯(PETA)等原料合成不同官能度封端剂封端的UV固化WPUA,并采用环氧树脂(E-44)进行接枝改性.实验结果表明:采用聚醚/聚酯混合二元醇作为软段,能有效解决涂膜UV固化前粘性问题,能忍受一定的机械应力,可以固化前堆放,给涂装施工带来极大方便;UV固化后赋予涂膜良好的耐水性、耐溶剂等性能;环氧树脂(E-44)改性能提高产物涂膜的综合性能.
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