水性聚氨酯成膜剂合成工艺优化的探讨  

The Synthesis of the Polyurethane and Discuss of Preparation Process

作　　者：王梓丞[1] 但年华[1,2] 但卫华[1,2] 曾睿[2] 郭松[1] 

机构地区：[1]四川大学制革清洁技术国家工程实验室,四川成都610065 [2]四川大学苏州研究院,江苏苏州215000

出　　处：《皮革科学与工程》2011年第2期48-52,共5页Leather Science and Engineering

基　　金：苏州市国际科技合作项目(SWS0907)

摘　　要：运用正交试验法研究水性聚氨酯成膜剂的最佳制备工艺。以吸水率、力学性能为主要技术指标考察多元醇种类、NCO/OH值、DMPA用量、硬段比例和乙二胺用量对水性聚氨酯成膜剂的性能影响。实验结果表明:选择聚碳酸酯二醇(PCDL)为软段材料,DMPA用量为4%,NCO/OH值为1.4,硬段比例为45%、乙二胺用量为0.5%为最佳水平。且多元醇种类,DMPA用量,NCO/OH值是主要影响因素。The optimum formulas of the waterproof polyurethane film former were studied with the method of orthogonal experiment.The relation between waterproof and water absorption were discussed preliminarily,through researching on water absorption of polyurethane influenced by polyol tape,DMPA,NCO/OH,Hard segment ratio and ethylenediamine.The result showed that the comprehensive performance was best when the soft segment was Polycarbonate diols,DMPA was 4%,NCO/OH was 1.4,hard segment was 45% and ethylenediamine was 0.5%.Meanwhile the polyol tape,DMPA,NCO/OH were the main factors for waterproof of polyurethane.

关 键 词：聚氨酯 防水性 条件优化 制备工艺 

分 类 号：TS529.5[轻工技术与工程—皮革化学与工程]