纳米二氧化硅_丙烯酸树脂复合涂料的研制.pdfVIP

() 45 　2 Vol.45, No.2 　　　JOU RNAL OF NANJING UNIVERSIT Y 　　　　 2009 3 Mar.2009 (NA TU RA L SCIENCES) ， ＊ - ＊＊ 顾敏豪, 丁道宁, 郑先创, 陆洪彬, 胡　勇 , 孟祥康 (, , , 210093) 　:　, 、、, . , , , .KH-570 , , , - ., , . , .、、 , ., , .、、 , 5%, 25 ℃ h , 350 h , 80 ℃10 h , 5%, 25 ℃24 h. :　, 　, :　T Q 30.7 The synthesis of silica-polyacrylate nano-complex coating Gu M in-H ao, D ing D ao-N ing , Z h eng X ian-Chuan, L u H ong -B in, H u Yong , M eng X i ang -K ang (National Laboratory of Solid S tate Microstructures, Department of Materials Science and Engineering, Nanjing University, Nanjing, 210093, China) Abstract:　An acrylic resin based nano-com plex coating w as prepared by mixing silica nanoparticles, acrylic resin and additives.To improve the stability and dispersity of silica in the coating, silane coupling agent (KH-570)w as chosen to modify the surface of them.Different amount of epoxy resin w ere added into this coating to enhance the cross-linking degree and reduce the hydrophilicity of the coating.The chemical proeprties of this coating w ere ana- lized by several techniques, such as Dynamic light scattering (DLS), Transmission electron microscopy (TEM ), and Infrared spectrum.It w as show n that surface modified silica nanoparticles were dispersed homogeneously in the coating w ithout aggregation.The surface of the steel plate w hich w as covered by the coating, is smooth and finish. The coating has good mechanical performance and sh