乙烯基硅氧烷改性丙烯酸酯聚合物乳液的结构与性能-高校化学工程学报.PDFVIP

20 4 No.4 Vol.20 2006 8 Journal of Chemical Engineering of Chinese Universities Aug. 2006 1003-9015(2006)04-0588-05 , , , , ( , 510641) (C-1706)(782) 51.8~76.6nm TQ433.436 O627.413 A Characterization of Acrylate Emulsion Modified by Vinylalkoxysilane ZHANG Xin-ya, HUANG Hong, SHEN Hui-fang, LI Yong-jing, CHEN Huan-qin (Research Institute of Chemical Technology, South China University of Technology, Guangzhou 510641, China) Abstract: Vinyltriisoproxy siloxane (trade name C-1706)-modified acrylate emulsion was synthesized by seed emulsion polymerization at reaction temperature of (78±2. The particle size distribution of the emulsion and the structure of copolymer were analyzed by particle size analyzer and Fourier transform infrared spectroscopy (FT-IR), respectively. Configuration of particles and emulsion films were analyzed by Transmission Electron Microscope (TEM) and Scanning Electron Microscope (SEM). Moreover, the durability and stain-resistance of the coating film were measured by the ultraviolet aging instrument. The measurement results show that the seed emulsion polymerization can be used to introduce the organic-siloxane bonding in the polymer and to obtain the latexes of organic-siloxane modified acrylate copolymer which possess narrow distribution of particle size with mean diameter of 51.8~76.6 nm. The films of the organic-siloxane modified acrylate copolymer obtained possess good performances of weather durability and stain resistance. Key words: vinylalkoxysilane; acrylate; emulsion polymerization; characterization 1