鞋用水性聚氨酯胶粘剂的合成及性能研究

Study on synthesis and properties of waterborne polyurethane as shoe adhesive

采用甲苯二异氰酸酯(TDI)、聚酯多元醇和二羟甲基丙酸(DMPA)为主要原料,经分步预聚后在水中自乳化合成了阴离子型水性聚氨酯胶粘剂.实验表明:DMPA用量、加入方式(粉末加入法或溶解加入法)、反应时间、反应温度及乳化工艺的选择是影响乳液及胶膜性能的主要因素.

The anionic waterborne polyurethane was synthesized by the reaction of toluene diisocyanate （TDI） with polyester glycol and dimethylolpropionic acid（DMPA） with the process of prepolymerization step by step and self-emulsification. And the results showed that the DMPA dosage, material-introduct mode（adding in powder or dissolved state）, reaction time, reaction temperature, selection of emulsion technology were main influential factors on emulsion and cast films performance.