机械力化学法制备TiO_2-重晶石颜料  

Preparation of TiO_2-Barite Pigments by Mechano-chemistry Method

作　　者：王洋[1] 李珍[1] 武慧君[1] 沈上越[1] 

机构地区：[1]中国地质大学(武汉)材料与化学学院,湖北武汉430074

出　　处：《中国粉体技术》2013年第6期32-36,共5页China Powder Science and Technology

基　　金：湖北天工物新材料科技股份有限公司合作项目(编号:2012036201)

摘　　要：以重晶石粉体为原料,通过干法、湿法工艺优选,采用机械力化学法制备TiO2-重晶石颜料,讨论干法制备TiO2-重晶石颜料的工艺条件对复合粉体性能的影响。结果表明,复合颜料制备的最优工艺条件为复合时间为1.5 h,钛白粉质量分数为40%,球料质量比为4∶1,制备得到的TiO2-重晶石颜料遮盖力达到钛白粉的80%以上,并且包覆效果最佳。TiO2-barite pigments were prepared through mechano-chemistry method taking barite powders as raw materials. By comparing the dry and wet process obtained TiO2-barite composite pigments, dry preparation was determined. The dry preparation of TiO2-barite pigment process conditions impact on the properties was focused. The results show that the optimum technical conditions are that the recombination time is 1.5 h, the TiO2 content is 40%, the mass ratio of ball to powder is 4:1. Under these conditions, the hiding power of TiO2-barite pigments can reach more than 80% of TiO2 powders and the coating effect is best.

关 键 词：TiO2-重晶石颜料 机械力化学法 遮盖力 

分 类 号：TB332[一般工业技术—材料科学与工程]