有机硅对钛白粉颜料性能和应用性能的影响

Influence of Organosilicon on Pigment Characteristics and Application Properties of Titanium Dioxide

研究不同官能团的有机硅对锆铝包膜的金红石型钛白粉包结料进行表面处理,通过高温保温后考察钛白粉的白度变化来分析不同种类有机硅对钛白粉热稳定性的影响;研究了有机硅对钛白粉颜料性能和应用性能的影响。试验结果表明,不同功能基团对钛白粉的热稳定性、吸油量、分散性等颜料性能,以及分散性和遮盖力等应用性能影响的对应关系不同,而有机硅的种类和功能基团的不同对钛白粉的白度和亮度影响不大。

In this study, the organosilicon containing different functional groups was used for surface modification of titanium pigment coated with zirconia and alumina, to investigate the effects of organosilicon on the thermal stability of titanium dioxide by analyzing the whiteness variation of titanium pigment after presentation at the high temperature. Meanwhile, the influences of organosilicon on the pigment and application performances of titanium dioxide were also studied. The results show that the organosilicon with different functional groups corresponds to various pigmental properties such as thermal stability and oil absorption ,and multifarious application performances like dispersion and covering power of the pigment. Nevertheless, the different types of organosilicon illustrate little influence on the whiteness and brightness of titanium pigment.