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甲基丙烯酸羟乙酯改性水性聚氨酯乳液的制备及性能
引用本文:陈建福.甲基丙烯酸羟乙酯改性水性聚氨酯乳液的制备及性能[J].广州化学,2010,35(4):24-28.
作者姓名:陈建福
作者单位:[1]漳州职业技术学院食品与生物工程系,福建漳州363000 [2]福建兴宇树脂有限公司,福建晋江362263
基金项目:晋江市第二批科技计划项目
摘    要:采用种子溶胀乳液聚合法,以水性聚氨酯为种子,甲基丙烯酸羟乙酯、甲基丙烯酸甲酯和丙烯酸丁酯为单体制备水性聚氨酯丙烯酸酯复合乳液,考察了甲基丙烯酸羟乙酯含量对复合乳液的T型剥离、胶膜的硬度、耐水性和力学性能的影响。结果表明,随着甲基丙烯酸羟乙酯含量的增加,复合乳液的T型剥离强度、胶膜的硬度和拉伸强度增大,胶膜的耐水性先增大后减小,断裂伸长率有所降低,适宜的甲基丙烯酸羟乙酯用量为3%。

关 键 词:甲基丙烯酸羟乙酯  水性聚氨酯  改性  复合乳液

Synthesis and Properties of 2-Hydroxyethyl Methacrylate Modified Waterborne Polyurethane Emulsion
CHEN Jian-fu.Synthesis and Properties of 2-Hydroxyethyl Methacrylate Modified Waterborne Polyurethane Emulsion[J].Guangzhou Chemistry,2010,35(4):24-28.
Authors:CHEN Jian-fu
Institution:CHEN Jian-fu(1.Department of Food and Biology Engineering,Zhangzhou Institute of Technology,Zhangzhou 363000,China;2.FuJian Xingyu Resin Co.,Ltd.,Jinjiang 362263,China)
Abstract:Polyurethane-acrylate composite emulsions were synthesized by seed swelling polymerization with aqueous polyurethane dispersion as seed,2-hydroxyethyl methacrylate(HEMA),methyl methacrylate and butyl acrylate as vinyl monomers.The effect of HEMA content on the performance of emulsion and film such as T-peel of emulsion,hardness,water absorption and mechanical properties of film were investigated respectively.The results showed that the T-peel increased of the composite,the hardness and the tensile strength of film improved while elongation at break declined and the water resistance increased first then decreased with the increase of HEMA content.The suitable HEMA content was 3%.
Keywords:2-hydroxyethyl methacrylate  waterborne polyurethane  modification  composite
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