摘要：为制备具有钛白粉性能的矿物基体复合颜料,并发挥绢云母的协同效应,采用机械力化学包覆方法制备绢云母-TiO₂复合颗粒,对制备工艺因素的影响、复合颗粒的结构与颜料性能进行研究。结果表明:绢云母研磨粒度、复合时间、球料质量比和TiO₂用量对绢云母-TiO₂复合颗粒性能影响显著,该复合颗粒的遮盖力为钛白粉的90%,吸油量和紫外线吸收性与钛白粉相同。在建筑涂料中填加绢云母-TiO₂复合颗粒,其对比率显著高于单一填加钛白涂料;复合颗粒形貌观测显示,TiO₂在绢云母表面形成了有效包覆。

关键词： 绢云母；二氧化钛；包覆；颜料性

Abstract：To obtain the mineral -TiO₂ composite particles with the same pigment properties as titanium dioxide and exhibit the synergistic effect from sericite， the sericite-TiO₂ composite particles were prepared by coating TiO₂on surfaces of sericite particles using mechano-chemical method as well. The technical factors for preparing sericite -TiO₂ composite particles， their structure and pigment properties were studied. The results showed that the size of ground sericite particles， compound time for sericite particles and TiO₂， mass ratio of grinding media to powder feeding and TiO₂ dosage had significant influences on the properties of the composite particles. The hiding power of the sericite-TiO₂ composite particles was 90% of titanium dioxide， and the oil absorption and ultra-violet absorption were the same to titanium dioxide. The contrast ratio ofthe building paint added it was higher than added titanium dioxide solely. SEM images indicated that TiO₂ coated on surfaces of sericite particles effectively. 

Keywords： sericite； titanium dioxide； coating； pigment property