Preparation of Barite/TiO_2 Composite Particle and Interaction Mechanism between TiO_2 and Barite Particles  

作　　者：Wang Baikun, Ding Hao, Wang Yongkui, Liang Ning China University of Geosciences (Beijing), Beijing 100083, China 

出　　处：《稀有金属材料与工程》2011年第S3期193-197,共5页Rare Metal Materials and Engineering

基　　金：National Key Technology R&D Program of China (2008BAE60B06);Beijing Municipal Science & Technology Commission (Z080003032208015)

摘　　要：Barite/TiO2 composite particle (B/TCP) was prepared by coating TiO2 on the surfaces of barite particles through mechano-chemical method. The preparation parameters and pigment properties of B/TCP as well as the interaction mechanism between barite and TiO2 were studied. The results indicated that the mechanical co-grinding process and the proportion of TiO2 affected the properties of B/TCP significantly. B/TCP prepared under optimal conditions was similar to TiO2 in pigment properties. It was mainly the strong electrostatic attraction between barite and TiO2 in water that combined them firmly and then formed B/TCP.Barite/TiO2 composite particle (B/TCP) was prepared by coating TiO2 on the surfaces of barite particles through mechano-chemical method. The preparation parameters and pigment properties of B/TCP as well as the interaction mechanism between barite and TiO2 were studied. The results indicated that the mechanical co-grinding process and the proportion of TiO2 affected the properties of B/TCP significantly. B/TCP prepared under optimal conditions was similar to TiO2 in pigment properties. It was mainly the strong electrostatic attraction between barite and TiO2 in water that combined them firmly and then formed B/TCP.

关 键 词：barite/TiO2 composite PARTICLE mechano-chemical TITANIUM dioxide interaction mechanism BETWEEN PARTICLES 

分 类 号：O614.411[理学—无机化学]