水性聚氨酯自乳化的最新研究进展  

Latest research progress of waterborne polyurethane in self-emulsifying

作　　者：曹洪涛 胡孝勇[1] 柯勇[1] Cao Hongtao Hu Xiaoyong Ke Yong(Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, Chin)

机构地区：[1]广西科技大学生物与化学工程学院,广西柳州545006

出　　处：《中国胶粘剂》2017年第10期54-58,共5页China Adhesives

摘　　要：介绍了合成WPU(水性聚氨酯)过程中乳化剂的作用、制备PU(聚氨酯)预聚体的2种乳化方法(外乳化法、自乳化法),详细介绍了不同扩链方式自乳化法(如丙酮法、预聚体法、熔融分散法和酮亚胺/酮联氮法等)的工艺流程以及优缺点,重点介绍了PU分子链上不同亲水基团的自乳化WPU(如阴离子型、阳离子型和非离子型WPU等)的合成原理和最新研究进展。最后对自乳化WPU的发展方向进行了展望。The function of emulsifier in the process of synthesizing WPU（waterborne polyurethane）,two kinds of emulsifying methods（such as external emulsifying method,and self-emulsifying method）in preparingPU（polyurethane）prepolymer were introduced. The technological process,advantages and disadvantages of self-emulsifying methods（such as acetone method,prepolymer method,melting dispersion method,and ketimine/ketoneazide method）with different chain-extension ways were in detail introduced. The synthetic principle and latestresearch progress of self-emulsifying WPU（such as anionic,cationic,and nonionic WPU） with differenthydrophilic groups on PU molecule chain were emphatically introduced. Finally,the development direction of self-emulsifying WPU was expected.

关 键 词：水性聚氨酯 自乳化法 亲水基团 

分 类 号：TQ433.432[化学工程]