文献类型：期刊文献

英文题名：Preparation of an ultraviolet-curable water-borne poly(urethane acrylate)/silica its dispersion and properties of hybrid film

作者：Yu, H; Yuan, QL; Wang, DN; Zhao, YH

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Key Lab Ultrafine Powder, Shanghai 200237, Peoples R China

年份：2004

卷号：94

期号：4

起止页码：1347

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000224224400001)】；

语种：英文

外文关键词：polyurethane; polyacrylate; silicas; dispersion

摘要：An organic-inorganic hybrid material was prepared through the addition of nanometer fumed silica partly modified by dimethyl dichlorosilane into a water-borne poly(urethane acrylate) (PUA) anionomer. A PUA/silica hybrid film was made via ultraviolet curing. The mechanical properties of the hybrid film were studied. The tensile strength, elongation at break, pendulum hardness and the glass-transition temperature of the hybrid material increased with increasing content of silica. Scanning electron microscopy showed an asymmetrical distribution of modified silica in PUA. Atomic force microscopy demonstrated that silica particles could make the surface of the film smooth. (C) 2004 Wiley Periodicals, Inc.