水分散性聚酯树脂的研究

A Study on Water-dispersible Polyester

通过改变聚酯的二羧酸成分来改变聚合体的性质，加入改性剂５－ 磺酸钠－ １ ，３－ 间苯二甲酸二甲酯来达到水分散的目的，并改变其摩尔百分数，使聚酯树脂对水的敏感性也随之变化。实验结果表明：ＳＩＰＭ 用量以１０％ ～１２％ 为好，与有关的二元醇、二羧酸进行共缩聚后制得的水分散性聚酯树脂，可在粘合剂、浆料。

The component of dicarboxylic acid in the polyester is altered and the properties of the polymer are improved.1,3-Benzenedicarboxylic acid,5-sulfo-1,3-dimethyl ester(SIPM) is added to the polyester,giving water-dispersible products.Changing the mole fraction and the water-sensitivity is changed.10%～12% SIPM copolying with dibasic alcohol and dicarboxylic acids can give better water-dispersible polyester.It can be applied in adhesives,coating,sizing agent.