聚醚型阴离子水性聚氨酯乳液的合成及性能研究  

Research of Synthesis and Properties Anionic Water-Borne Polyurethane Type Polyether Emulsion

作　　者：苗丽芬[1] 潘鹏[1] 李伟[1] 孟啸[1] 刘文超[1] 

机构地区：[1]武汉纺织大学化工学院,湖北武汉430020

出　　处：《广东化工》2010年第11期19-21,18,共4页Guangdong Chemical Industry

摘　　要：采用聚乙二醇、甲苯二异氰酸酯、二羟甲基丙酸为基本原料,用预聚法合成了稳定的聚醚型水性聚氨酯乳液。探讨了NCO/OH(摩尔比)、DMPA用量、中和度等对水性聚氨酯性能的影响。实验表明:当预聚温度为80℃、乳化温度为30℃时,初聚NCO/OH为2.0、总NCO/OH为1.2、DMPA用量为4%、中和度为100%、TMP与DMPA的摩尔比控制在1:4左右时合成的聚醚型阴离子水性聚氨酯具有较好的乳液稳定性,且涂膜的耐水性和机械性能优良。In the paper,stable polyether modified anionic waterborne polyurethane emulsion was synthesized by prepoly merization process using polyethylene glycol,TDI and DMPA as raw materials.The influence of mole ratio of NCO/OH,reaction temperature,neutralization degree and the amount of DMPA on the performance of waterborne polyurethane emulsion were discussed.The optimized process conditions were obtained：the initial mole ratio of NCO/OH was 2.0 and the total mole ratio of NCO/OH was 1.2;the amount of DMPA was 4 %,neutralization degree was 100%;the mole ratio of TMP and DMPA was about 1：4.The experiment results show that the polyester anionic waterborne polyurethane emulsion had good storage stability,and its film had good water-resistance and mechanical property.

关 键 词：水性聚氨酯 聚醚 阴离子 合成 性能 

分 类 号：TQ[化学工程]