采用超声预分散结合湿球磨法和分散剂复配方式对纳米TiO2进行表面改性处理,研制了均匀稳定分散的纳米TiO2分散液,表征了纳米TiO2改性后的彩涂板涂料及涂层性能.结果表明:纳米TiO2在分散液中的粒径集中分布在60～100 nm范围.可完全吸收330 nm左右的紫外线,对长波紫外线的散射吸收作用强于对短波紫外线的散射吸收.纳米Ti2改性彩涂板涂料用量为w(Ti2)=2.0%～3.0%.纳米Ti2改性处理可提高涂层柔韧性和附着力,减少涂层色差变化,降低失光率.涂层抗紫外老化性能优于同类传统彩涂板涂料涂层.
参考文献
| [1] | Armstrong R D;Jenkins A T A;Johnson B W .An Investiga-tion Into the UV Breakdown of Thermoset Polyester Coatings Using Impedance Spectroscopy[J].Corrosion Science,1995,37(10):1615. |
| [2] | 孙世安,费逸伟,王协旗,孙元宝.涂料抗老化技术研究[J].表面技术,2005(05):56-58. |
| [3] | Renè J.Nussbaumer;Walter Cased;Thco Tervoort et al.Synthesis and Characterization of Surface Modified Rutile Na-noparticles and Transparent Polymer Composites Thereof[J].Journal of Nanoparticle Research,2002,4:319. |
| [4] | 田红,张人韬,温霖.纳米材料在水性涂料中的应用[J].化学工程师,2004(05):59-60. |
| [5] | 肖佑国;祝福军.预涂金属卷材及涂料[M].北京:化学工业出版社,2003 |
| [6] | Henry L;Jakubauskas .Use of A-B Block Polymers as Disper-sants for Non-Aqueous Coating System[J].Journal of Coatings Technolngy,1986,58(736):72. |
| [7] | Hong Kyu Park;Do Kyung Kim;Chong hee Kim .Effect of solvent on titania particle formation and morphology in thermal hydrolysis of TiCl_4[J].Journal of the American Ceramic Society,1997(3):743-749. |
| [8] | 郑伯存.超细粉末在涂料中的应用[J].上海建材,1999(06):31. |
| [9] | Stamatskis P;Palmer B R .Optimum Particle Size of Titanium Dioxide and Zinc Oxide for Attenuation of Ultraviolet Radiation[J].Journal of Coatings Technolngy,1990,62(789):95. |
| [10] | Klabunde K J.Nanoscale Materials in Chemistry[M].New York:John Wiley and Sons,Inc,2001 |
| [11] | 刘福春;韩恩厚;柯伟 .一种纳米二氧化钛浆组合物及其制备方法[P].CN 1410490A,2003-04-26. |
| [12] | 刘娅莉,于占锋,曹银祥,周树学,游波,武利民.纳米TiO2的分散性能及其对涂层性能的影响[J].材料保护,2005(11):6-9. |
| [13] | 曾玉燕,方军,陈剑华,沈培康.高耐候性纳米复合外墙涂料[J].涂料工业,2003(10):1-4. |
| [14] | Chandra P;Khattak C P;Schmid F et al.Smith Correlation of Sapphire Quality With Uniformity and Optical Properties[J].PROCEEDINGS OF THE SPIE,1997,3060:250. |
| [15] | Schmid F;Rogers H H;Khsttak C P .Growth of Very Large Sapphire Crystals for Optical Applications[J].PROCEEDINGS OF THE SPIE,1998,1112:25. |
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