应用化学2013，Vol.30Issue(2)：143-147,5.DOI:10.3724/SP.J.1095.2013.20105
有机硅改性磺酸型聚氨酯/丙烯酸酯复合乳液的制备
Preparation of Silicone Modified Sulfonated Polyurethane/acrylic Composite Emulsion
摘要
Abstract
A prepolymer was prepared by reacting the obtained sulfonated polyester polyol with isophorone diisocyanate(IPDI) and trimethylolpropane (TMP).The seed emulsion containing viny and silicone was prepared by end-capping with bifunctional monomer β-hydroxyethyl methacrylate(HEMA) and modification by silane coupling agent γ-aminopropyl triethoxysilane(KH550).The silicone modified sulfonated polyurethane/ acrylic composite emulsion was obtained by mixing methyl methacrylate (MMA) and butyl acrylate (BA) monomers.The silicone modified sulfonated polyurethane/acrylic composite emulsion was characterized by infrared spectroscopy.The core-shell structure of the composite emulsion was confirmed by the transmission electron microscopy.Thermogravimetric analysis showed that an increase of 20℃ of the largest thermal mass loss temperature could be observed for the organic silicon and acrylic modified films.Meanwhile,the crystallinity was decreased as revealed by X-ray diffraction result,which could help to improve the toughness of the film.In addition,when the organic silicon content is 1.9% ,the tensile strength of the film is up to 25.03 MPa,its elongation at break is 328% ,and has the lowest water absorption.关键词
聚酯多元醇/水性聚氨酯/丙烯酸酯/有机硅Key words
polyester polyol/waterborne polyurethane/acrylates/silicone分类
化学化工引用本文复制引用
周亭亭,杨建军,吴庆云,吴明元,张建安..有机硅改性磺酸型聚氨酯/丙烯酸酯复合乳液的制备[J].应用化学,2013,30(2):143-147,5.基金项目
国家自然科学基金(51173001,21044006)、安徽省自然科学基金(11040606M59)资助项目 （51173001,21044006）
