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水性脂肪族聚酯因其环境友好特性而在涂料和纺织助剂工业中具有广泛的应用前景.通过胺中和对以己二酸、己二醇等为原料合成的脂肪族聚酯基体进行亲水改性,然后与三聚氰胺热交联制成涂膜;研究了胺种类、胺用量、交联剂用量、固化温度及固化时间对水性聚酯涂膜性能的影响.结果表明:用N,N-二甲基乙醇胺为中和剂,胺/聚酯基体的量比为1.2/1,交联剂/水溶性聚酯的量比为1.2/1,150℃固化20 min时得到的涂膜性能最佳.
Water-based aliphatic polyesters have a wide range of applications in the paint and textile auxiliaries industry due to their environment-friendly properties. By amine neutralization, the aliphatic polyester matrix synthesized from adipic acid, hexanediol and the like Water modified and then crosslinked with melamine to form a coating film.The effects of amine type, amount of amine, the amount of crosslinking agent, curing temperature and curing time on the properties of waterborne polyester film were studied.The results showed that: - dimethylethanolamine as neutralizer, the ratio of amine / polyester matrix was 1.2 / 1, the ratio of crosslinking agent / water - soluble polyester was 1.2 / 1,150 ℃, curing time was 20 min, .