CAJ | 학술논문

探讨了以 H2 SO4 和 CH2 OHCH2 C1为酸解介质时 ,氯化法金红石型钛白粉表面包铝的行为及形态特征。利用正交实验研究了包膜过程中 ,熟化 p H、熟化时间以及温度对包铝钛白粉白度的影响。氯化法金红石型钛白粉浆液在 p H为 1 0时 ,Zeta电位最大 ,在水中达到最佳分散。利用H2 OHCH2 C1作为酸解介质时 ,浆液中的均相成核得到显著抑制 ,钛白粉表面的包膜质量得到明显改善。以稀硫酸作为酸解介质时 ,随熟化温度升高和熟化时间的延长 ,钛白粉包覆效果明显改善 ,白度值明显升高
탐토료이 H2 SO4 화 CH2 OHCH2 C1위산해개질시 ,록화법금홍석형태백분표면포려적행위급형태특정。이용정교실험연구료포막과정중 ,숙화 p H、숙화시간이급온도대포려태백분백도적영향。록화법금홍석형태백분장액재 p H위 1 0시 ,Zeta전위최대 ,재수중체도최가분산。이용H2 OHCH2 C1작위산해개질시 ,장액중적균상성핵득도현저억제 ,태백분표면적포막질량득도명현개선。이희류산작위산해개질시 ,수숙화온도승고화숙화시간적연장 ,태백분포복효과명현개선 ,백도치명현승고
The morphology and mechanism of rutile titanium dioxide coated by aluminum oxide were investigated and the effects of pH and reaction temperature were studied experimentally. The results indicate that the dispersions of titanium dioxide powder possesses a highest Zeta potential when pH closed to 10, and at this condition titanium dioxide powder is able to be dispersed best in water. Uniform thin film is formed on titanium dioxide particles at high reaction time and temperature, and also when CH 2OHCH 2Cl ...