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.
作者
张楚楚
屠晓华
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)
出处
《浙江化工》
CAS
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)。
关键词
水性聚氨酯
自乳化
羧酸
waterborne polyurethane
self-emulsifying
carboxylic acid
