含TiO_2/(RSiO_(1.5))_8醇酸树脂涂料的光活性研究  

Study on the Photocatalysis of the Alkyd Resin Coating Containing TiO_2/(RSiO_(1.5))_8 Particles

作　　者：温永向[1] 王燕[2] 刘安华[3] 

机构地区：[1]中交四航工程研究院有限公司,广州510230 [2]中国石油化工集团公司广州分公司,广州510726 [3]华南理工大学材料科学与工程学院,广州510640

出　　处：《涂料工业》2008年第12期1-3,6,共4页Paint & Coatings Industry

摘　　要：通过溶胶-凝胶法,以(RSiO1.5)8作为载体,制得TiO2/(RSiO1.5)8纳米复合光活性粒子,并将其分散到醇酸树脂中制成含TiO2/(RSiO1.5)8的有机涂料。通过红外光谱、分光光度计、荧光光谱等分析方法进行分析与表征,结果表明:TiO2/(RSiO1.5)8复合粒子比纯TiO2粒子具有更强的紫外光、近紫外光吸收能力;在紫外光照射下,含TiO2/(RSiO1.5)8醇酸树脂涂料能产生更多的.OH自由基,拥有更强的分解次甲基蓝的能力,且具有更高的光催化效率。By means of sol- gel methods, TiO2/（RSiO1.5 ）8 composite photocatalyst particles were prepared at lower temperature, then dispersed into alkyd resin to prepare nanocomposite organic coatings. The products were characterized by use of IR, spectrophotometry, and fluorescence spectrum. The experiment results indicated that the composite particles had stronger UV absorption ability than TiO2 only and the alkyd resin coating containing TiO2/（ RSiO1.5）8 particles could produce more · OH free radical, and the addition of （RSiO1. 5）8 can enhance the photocatalytic activation of TiO2.

关 键 词：二氧化钛 硅氧烷 光催化 醇酸树脂涂层 次甲基蓝 

分 类 号：TQ630.7[化学工程—精细化工]