华南理工大学学报(自然科学版) ›› 2006, Vol. 34 ›› Issue (8): 46-50.

• 化学化工 • 上一篇    下一篇

多重改性水性聚氨酯乳液的合成及性能

黄洪 谢筱薇 傅和青 陈焕钦   

  1. 华南理工大学 化工与能源学院,广东 广州 510640
  • 收稿日期:2006-04-14 出版日期:2006-08-25 发布日期:2006-08-25
  • 通信作者: 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
  • 作者简介:黄洪(1965-),男,博士,副研究员,主要从事精细化学工程研究
  • 基金资助:

    广州市科技计划项目(B2050580)

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)

摘要: 以蓖麻油、三羟甲基丙烷为交联剂,采用环氧树脂和丙烯酸酯为改性剂合成多重改性水性聚氨酯乳液.用傅立叶变换红外光谱、凝胶渗透色谱、粒度分析仪等对合成的改性聚氨酯乳液的结构和性能进行了表征.同时采用该乳液配胶制成了汽车内饰用的胶粘剂,当内饰材料聚氨酯和聚氯乙烯之间、木材和皮革之间粘接时,剥离强度测试时材料均遭破坏;当聚氨酯和真皮之间、橡胶和真皮之间粘接时,剥离强度分别为1.66 kN/m和1.41 kN/m,其性能优于未改性的聚氨酯(PU)乳液及国外同类产品.

关键词: 抽陛聚氨酯, 丙烯酸酯, 环氧树脂, 改性, 合成

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