【摘要】 以聚醚多元醇和甲苯二异氰酸酯合成了水性聚氨酯乳液。研究了二羟甲基丙酸亲水扩链剂、三羟甲基丙烷交联剂和乙二胺对水性聚氨酯涂膜耐水性的影响。制备了耐水性好的水性聚氨酯树脂。更多还原

【Abstract】 A aqueous polyurethane emulsion has been prepared based on polyether polyols and toluene diisocyanate.The influence of dimethylol propionic acid,a hydrophilic chain extender,trimethylol propane crosslinker and ethylene diamine on the water resistance of the aqueous polyurethane coating film has been discussed.更多还原