Study on Surface Treatment Factors of Rutile Titanium Dioxide

Combined with the performance of rutile titanium dioxide,the inorganic surface treatment mechanism and process of titanium dioxide were introduced. The influences of dispersion of TiO 2 particles-suspension,pH,addition and adding sequence of coating agent,reaction time and temperature were investigated,and the technique of inorganic coating with Si-Al was obtained. Results showed that prepared TiO 2 powder with the technique of Si-Al,its whiteness was greater than 93. 7%,lightening power was between 110 ~ 113,with excellent weather-ability.