【摘要】 <正> 一、前言水性聚氨酯是用水作介质代替有机溶剂的一种新型聚氨酯体系。1942年聚己内酰胺纤维的发明者P.Schlack报道了用六亚甲基二异氰酸酯与N-甲基二羟乙基胺合成强碱性聚氨酯,再用稀甲酸或醋酸处理,生成聚氨酯电解质。由于水性聚氨酯昂贵,更多还原

【Abstract】 Types and preparation methods ofwater-borne polyurethane(inclu-ding blocked NCO, forced emulsi-fication、self-emulsification) weredescribed. Water--borne polyureth-ane is featured by its excellent abr-asion resistance, high gloss, bett-er elasticity and adhesion besidesthe non-toxicity, nonflammability,explosionproof. It can be used invarious textile products, leather,rubber, paper, wood, metals, pl-astics and ceramics.更多还原