摘要： 以TiCl4、三乙醇胺为原料于常温下制备的可溶性络合物为先驱液, 分别在制备不含填料和含填料的聚丙烯酸酯 ( PA )涂料的过程中加入上述先驱液, 使纳米 T iO2在涂料中原位生成, 从而获得纳米 TiO2改性的PA 涂料。对不含填料的透明涂料涂膜的 UV - V is 透过光谱分析表明, 纳米 T iO2 具有良好的紫外光屏蔽作用; 采用美国 ATLASc i5000 型人工加速耐候性试验机检测含填料的纳米 T iO2改性 PA涂料的耐老化性能表明, 改性的 PA 涂料 1 800 h后仍未出现粉化, 比普通涂料延长了 200 h。
关键词:
原位生成法,
纳米涂料,
TiO2,
聚丙烯酸酯
Abstract: Dissoluble precursor was prepared by reaction of TiC l4 and triethano lamine at room temperature,which is then added in the process of preparing clear PA and fillered PA coatings,leading an in- situforming of the nano- TiO2 modified PA coatings,UV testresults show that the PA film mod ified by nanoTiO2 performs excellent effects in shielding the ultrav ioletradiation and themod ified coatings show s no cha-lking after 1 800 h, which is 200 h longer than that of conventiona l coatings.
Key words:
in- situsyn thesis,
nano coatings,
titanium dioxide,
polyacrylate
王智宇, 林旭添, 陈海锋, 樊先平, 钱国栋. 原位生成法制备纳米 T iO2改性聚丙烯酸酯涂料[J]. 涂料工业, 2006, 36(8): 28-31.
Wang Zhiyu, Lin Xutian, Chen Haifeng, Fan Xianping, Qian Gongdong. In- Situ Preparation of Nano- TiO2 M odified Polyacrylate( PA)Coatings[J]. Paint & Coatings Industry, 2006, 36(8): 28-31.