拒水链对阳离子聚氨酯乳液及胶膜性能的影响  

Effect of Hydrophobic Chain on the Properties of Cationic Polyurethane Emulsion and Its Membrane

作　　者：刘迪雅 陈洁 刘小川 吴静怡 孙庆诚 权衡 Liu Diya;Chen Jie;Liu Xiaochuan;Wu Jingyi;Sun Qingcheng;Quan Heng(Chemistry and Chemical Engineering College,Wuhan Textile University,WuHan,Hubei 430073,China;Graduate Student Workstation of Wuhan Textile University(Liyuan),Jingzhou,Hubei 434000,China;Hebei Duoweikang Co.,Ltd.,Xingtai,Hebei 054000,China)

机构地区：[1]武汉纺织大学化学与化工学院,湖北武汉430073 [2]武汉纺织大学研究生(丽源)工作站,湖北荆州434000 [3]河北多维康助剂有限公司,河北邢台054000

出　　处：《针织工业》2019年第12期62-64,共3页Knitting Industries

基　　金：河北省重点研发计划高新技术共性关键技术攻关与应用示范专项(18211407D)

摘　　要：为改善阳离子水性聚氨酯胶膜耐水性差的问题,采用硬脂酸单甘油酯(GMS)分别对聚酯型和聚醚型阳离子水性聚氨酯进行改性。通过测试改性前后样品乳液的稳定性、粒径及其分布,胶膜耐水性及其表面沾水性,研究了通过硬脂酸单甘油酯向聚氨酯引入的侧长链烷基对其主要应用性能的影响。结果表明,通过GMS引入的脂肪长链能够显著地改善阳离子聚酯型和聚醚型聚氨酯的乳液的稳定性及其胶膜表面的拒水效果,但这种性能上的提升也与材料的超分子结构密切相关。In order to improve the water resistance of cationic waterborne polyurethane film,glyceridemonostearate(GMS)was used to modify the polyester or polyether cationic polyurethane respectively.The effects of the side long alkyl chain on the stability,particle size and distribution of cationic WPU emulsion,and the water resistance of the corresponding film were investigated.The results show that the stability of both type cationic WPU emulsions and the water-repellent of the corresponding films were significantly improved by introducing the long fat chain in GMS,which was also closely related to the super molecular structure of the material.

关 键 词：阳离子水性聚氨酯 硬脂酸单甘油酯 改性 稳定性 耐水性 拒水性 

分 类 号：TS195.2[轻工技术与工程—纺织化学与染整工程]