采用均匀实验设计法优化实验条件,以分散剂、包膜量、pH值、包膜的速度为实验变量,用溶胶-凝胶法对金红石型钛白粉进行了氧化锆包膜.通过扫描电镜(SEM)和透射电镜(TEM)的检测,对包覆机制和包膜效果进行分析,得到了金红石型钛白粉表面单锆包膜的优化工艺条件.结果表明:在分散剂为0.19％,包膜量为1％,体系pH为9,滴加速度为6滴min-1条件下,包覆效果较好；在该工艺条件下,金红石型钛白粉表面能形成连续、均匀、致密的膜层.
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