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环氧改性水性聚氨酯/聚丙烯酸酯的制备与性能 预览 被引量:5

Preparation and Properties of Epoxy-Modified Waterborne Polyurethane/Polyacylate Emulsion
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摘要 以聚己内酯二元醇(PCL1000)、异佛尔酮二异氰酸酯(IPDI)、2,2-二羟甲基丁酸(DM.BA)、甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)等为主要原料合成水性聚氨酯/聚丙烯酸酯乳液(WPUA),通过向WPUA中引入甲基丙烯酸缩水甘油酯(GMA)和可聚合乳化剂烯丙氧基羟丙基磺酸钠(AHPS),合成了稳定性好、固含量约为43%的可聚合乳化剂作用下的环氧改性聚氨酯/聚丙烯酸(EPUAS)复合乳液。采用FT-IR、TEM、XRD对改性前后乳液和涂膜结构进行了表征,探讨了GMA及AHPS在不同含量下对WPUA乳液及其涂膜性能的影响。实验表明:在GMA用量为5%(以丙烯酸单体总质量计,下同)、AHPS用量为2%时,乳液和涂膜的固含量、耐水性、硬度及机械性能等得到改善。 Waterborne polyurethane/polyacylate emulsion (WPUA) was synthesized mainly with poly-caprolaclone glycol ( PCL1000), isophorone diisocyanate ( IPDI), 2,2-dimethylol butyric acid ( DMBA), methyl methacrylate (MMA) and butyl acrylate (BA). Glycidyl methacrylate (GMA) and allyloxy hydroxyl propanesulfonic salt(AHPS) were introduced in (EPUAS) composite emulsion, a stable emulsion with 43% solid content had obtained. The structure and morphology of WPUA were characterized by FT-IR, TEM and XRD. The amount of GMA and the amount of AHPS on properties of the emulsion and films were discussed. The property test of emulsion and films of EPUAS showed that the solid content, water resistance, hardness and mechanical property etc. were improved when w(GMA) is 5% and w(AHPS) is 2%.
作者 王晓荣 李小瑞 赖小娟 王小荣 Wang Xiaorong, Li Xiaorui, Lai Xiaojuan, Wang Xiaorong (Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science & Technology, Xi 'an 710021, China )
出处 《涂料工业》 CAS CSCD 北大核心 2015年第2期41-45,共5页 Paint & Coatings Industry
基金 国家自然科学基金(51103081) 陕西省教育厅科研项目(2013JK0705,14JK1085)
关键词 可聚合乳化剂 环氧改性 聚氨酯/聚丙烯酸酯 polmerizable emulsifier epoxy-modified polyurethane/polyacylate
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