羧酸型水性聚氨酯的合成研究  

Study on Synthesis of Carboxylic Acid Type Waterborne Polyurethane

作　　者：张楚楚 屠晓华[1] 刘新迁 静桂兰 游葱林 宋刚 ZHANG Chu-chu;TU Xiao-hua;LIU Xin-qian;JING Gui-lan;YOU Cong-lin;SONG Gang(College of Biological and Chemical Engineering,Jiaxing University,Jiaxing,Zhejiang 314001,China;Zhejiang Jiafu New Material Technology Co.,Ltd.,Jiaxing,Zhejiang 314201,China)

机构地区：[1]嘉兴学院生物与化学工程学院,浙江嘉兴314001 [2]浙江嘉福新材料科技有限公司,浙江嘉兴314201

出　　处：《浙江化工》2020年第9期23-26,共4页Zhejiang Chemical Industry

基　　金：嘉兴学院重点SRT项目(8517192023)。

摘　　要：以聚己二酸-1,4-丁二醇酯(PBA)和异佛尔酮二异氰酸酯(IPDI)为原料,以二羟甲基丙酸(DMPA)为亲水扩链剂制备了羧酸型水性聚氨酯乳液。系统研究了NCO/OH值(R值)、中和度和DMPA含量变化对乳液及胶膜性能的影响。研究结果表明:DMPA含量为6%,中和度为80%,R值为1.5时,获得的乳液和胶膜的综合性能最佳。The carboxylic acid type waterborne polyurethane emulsion was prepared using poly-1,4-butanediol adipate(PBA)and isophorone diisocyanate(IPDI)as raw materials and dimethylolpropionic acid(DMPA)as hydrophilic chain extender.The effects of NCO/OH value(R value),neutralization degree and DMPA content change on the performance of emulsion and film were systematically studied.The research results show that when the DMPA content is 6%,the neutralization degree is 80%,and the R value is 1.5,the obtained emulsion and film have the best comprehensive performance.

关 键 词：水性聚氨酯 自乳化 羧酸 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]