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含TiO₂/(RSiO_1.5)₈复合物涂层的光活性与抗老化性能

Study on the Photocatalysis and Anti-Aging Properties of Organic Coatings Containing TiO₂/(RSiO_1.5)₈ Particles

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【Author】 WEN Yong-xiang1,LIU An-hua2,ZHANG Li-li2,LIU Yao-yu3, SHAO Jian2 (1.Guangzhou Sihang Institute of Engineering Technology,Guangzhou 510230,China;2.Institute of Materials,South China University of Technology,Guangzhou 510640,China;3.Zhuhai Compus,Beijing Normal University,Zhuhai 519085,China)

【机构】广州四航工程技术研究院；华南理工大学材料学院；北京师范大学珠海校区；华南理工大学材料学院广东广州510230；广东广州510640；广东珠海519085；

【摘要】通过Sol-Gel法,以(RSiO1.5)8作为载体,将纳米TiO2分散到(RSiO1.5)8网络里制得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的有机涂层。实验结果表明,TiO2/(RSiO1.5)8复合粒子比纯TiO2粒子拥有更强的光催化性能,含TiO2/(RSiO1.5)8复合物的有机涂层比只含有TiO2的有机涂层具有更好的抗老化性能。更多还原

【Abstract】 By means of sol-gel methods,TiO2/(RSiO1.5)8 composite photocatalyst particles were prepared at low temperature.With the composites dispersing into alkyd resin,nanocomposite organic coatings were yielded.The light absorption of the particles was recorded by UV-VIS spectrophotometer,and it shows TiO2/(RSiO1.5)8 particles have a better UV light absorption than titanium dioxide.And under UV light irradiating,the TiO2/(RSiO1.5)8/resin coatings have a more efficient photocatalysis in degrading methylene blue.The anti-aging ability of the coatings was characterized by Surface Gloss Equipment and Scanning Electron Microscopy(SEM),and it indicates the coatings containing TiO2/(RSiO1.5)8 particles have a better anti-aging ability.The addition of(RSiO1.5)8 particles can enhance the photocatalytic activation,and also prevent the organic matrix from degrading.更多还原