Preparation of Polyurethane-acrylate Hybrid Emulsions

Zhang Xudong1,2, Qu Jinqing1, Chen Huanqin1
(1 South China University of Technology, Guangzhou, 510641 2 Hunan University, Changsha 410082)

Abstract New emulsions formed by polyurethane (PU) emulsions and polyacrylate (PA) emulsions are classified as blend polyurethane/polyacrylate (PU/PA) composite emulsions and copolymerized polyurethane-acrylate (PUA) hybrid emulsions. PUA hybrid emulsions are divided further into four types, which are noncrossing emulsions, crossing emulsions during synthesis, crossing emulsions during film formation and interpenetrating polymer network emulsions. Preparation methods and their characteristics of PU/PA emulsion and PUA emulsions are introduced roundly. It is pointed out that the research and development of PUA hybrid emulsions would be focused on crossing PUA emulsions which are exhibiting good future of industrial applications because they can be made stably and have favorable properties.
Key words Polyurethane-acrylate, Hybrid emulsion, Dispersions, Preparation

　

聚氨酯-丙烯酸酯复合乳液的制备方法

张旭东1,2 瞿金清1 陈焕钦1
(1华南理工大学化工所 广州 510641 2湖南大学化学化工学院 长沙 410082)

摘要 由聚氨酯(PU)乳液和聚丙烯酸酯(PA)乳液复合形成的新乳液包括物理共混聚氨酯/聚丙烯酸酯(PU/PA)复合乳液和化学共聚聚氨酯－丙烯酸酯(PUA)复合乳液，其中PUA复合乳液又可分成非交联型、合成交联型、自交联型和互穿网络型四种体系。本文较全面地综述了它们的制备方法及其特点，指出交联型PUA复合乳液既具有良好的性能又较易制造，具有广阔的工业应用前景，将成为PUA复合乳液研究开发的重点。
关键词 聚氨酯-丙烯酸酯 复合乳液 分散体 制备

张旭东 男，46岁，博士，副研究员，现从事乳液及水性涂料研究。
2002-11-11收稿，2003-04-01修回

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