By means of emulsion polymerization, acrylate copolymer was grafted .The fine talcum particles treated by coupling agent were coated by the copolymer,and composite particles were formed.

• 表面偶联化处理的滑石粉微粒经乳液聚合甲基丙烯酸甲酯接枝共聚物包覆,构成复合粒子。