Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (8): 46-50.

• Chemistry & Chemical Engineering • Previous Articles     Next Articles

Synthesis and Properties of W aterborne Polyurethane Emulsion with M ul tiple M odification

Huang Hong  Xie Xiao-wei  Fu He-qing  Chen Huan-qin   

  1. School of Chemical and Energy Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2006-04-14 Online:2006-08-25 Published:2006-08-25
  • Contact: 黄洪(1965-)，男，博士，副研究员，主要从事精细化学工程研究 E-mail:cehhuang@scut.edu.cn
  • About author:黄洪(1965-)，男，博士，副研究员，主要从事精细化学工程研究
  • Supported by:

    广州市科技计划项目(B2050580)

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Abstract:

The waterborne polyurethane emulsion with multiple modification was synthesized with castor oil and tri-methylolpropane(TMP)as the cross-linkers as well as with epoxy resin and acrylate as the modification agents.The structure and properties of the modified emulsion was also characterized using Fourier Transform Infrared f fTr.IR),Gel Permeation Chromatography(GPC)and Particle Size Analyzer.The modified emulsion was then used to
form ulate the adhesive to be used for car decoration,followed by the peel strength tests to investigate the perfor-mance of the adhesive.The results show that the materials are all broken during the tests for the adhesives between PVC(polyvinyl chloride)and polyurethane(PU),wood and leather,and that the peel strength reaches 1.66 kN/m and 1.41 kN/m for the adhesives between PU and leather,rubber and leather,respectively.It is thus concluded that the adhesive form ulated by the waterborne polyurethane emulsion with multiple modification is better than that form ulated by unmodified PU and the foreign products of the same kind.

Key words: waterborne polyurethane, acrylate, epoxy resin, modification, synthesis