纳米TiO_2的浆料的制备及其在水性防腐涂料中的应用

Preparation of nano TiO_2 slurry and its application in water-based anti-corrosion coating

通过氢氧化铝Al(OH)3和十二烷基硫酸钠(SDS)对纳米TiO2的表面进行包覆和改性处理,以提高纳米TiO2水性浆料的分散性。经SDS对表面包覆Al(OH)3的纳米TiO2进行改性后,制成的浆料平均粒径为82nm、储存稳定性达50d以上。将纳米TiO2浆料加入到防腐涂料中,涂料的各种性能均有提高,且在纳米TiO2的添加量为2‰时,涂膜的综合性能最好。

Through surface modification of nano TiO2 with aluminum hydroxide and sodium dodecyl sulfate （SDS） in order to improve water slurry of nano TiO2 dispersion.After SDS modified nano TiO2 which surface coated by Al（OH）3,a kind of nano TiO2 slurry has been prepared,which average particle size is 82nm and over 50d storage stability.Added nano TiO2 slurry into the anti-corrosion coating,and a variety of properties of coating were improved,and comprehensive performance of coating is best when nano TiO2 adding amount is 2‰.