Leather Science and Engineering ›› 2022, Vol. 32 ›› Issue (4): 40-46.doi: 10.19677/j.issn.1004-7964.2022.04.007

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Research Progress in Self-healing Waterborne Polyurethane

ZENG Wenhua1,2, JIN Yong1,2,*, LI Yupeng1,2, SHANG Xiang1,2   

  1. 1. Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China;
    2. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
  • Received:2022-01-05 Published:2022-08-28 Online:2022-07-11

Abstract: Waterborne polyurethane, with an excellent environment-friendly, is a kind of polyurethane material which uses water instead of organic solvent as dispersion medium. With self-healing functionalization, waterborne polyurethane can be given a longer service life and more diverse application properties. This article reviews the research progress of self-healing waterborne polyurethane constructed based on dynamic covalent bonds and dynamic non-covalent bonds in recent years and mainly introduces the applications in leather coating and functional materials. Meanwhile, some research and development direction of the self-healing waterborne polyurethane material is discussed.

Key words: self-healing, waterborne polyurethane, synthesis, application

CLC Number: