原位生成法制备纳米TiO_2改性聚丙烯酸酯涂料  

In-Situ Preparation of Nano-TiO_2 Modified Polyacrylate(PA) Coatings

作　　者：王智宇[1] 林旭添[1] 陈海锋[1] 樊先平[2] 钱国栋[2] 

机构地区：[1]浙江大学材料与工程系,杭州310027 [2]浙江大学硅材料国家重点实验室,杭州310027

出　　处：《涂料工业》2006年第8期28-31,共4页Paint & Coatings Industry

基　　金：浙江省重点科研工业项目"聚合物保温砂浆建筑节能体系"的资助(2006C21102)

摘　　要：以TiC l4、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TiO2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TiO2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TiO2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。Dissoluble precursor was prepared by reaction of TiC14 and triethanolamine at room temperature, which is then added in the process of preparing clear PA and fillered PA coatings, leading an in - situ forming of the nano - TiO2 modified PA coatings, UV test results show that the PA film modified by nano - TiO2 performs excellent effects in shielding the ultraviolet radiation and the modified coatings shows no chalking after 1 800 h, which is 200 h longer than that of conventional coatings.

关 键 词：原位生成法 纳米涂料 TIO2 聚丙烯酸酯 

分 类 号：TQ633[化学工程—精细化工] TB383[一般工业技术—材料科学与工程]