用高能行星磨对凹凸棒石进行机械力化学活化,采用中和水解法制备了凹凸棒石/TiO2复合颗粒,通过热重分析、SEM和TEM分析,研究了机械力化学活化的凹凸棒石及所制备复合颗粒的热稳定性、粒度和微观形貌的变化情况。结果表明:凹凸棒石经粉磨后颗粒表面活性极大增强,颗粒变得扁平和细小,所制备的复合颗粒包覆效果理想,分散性好。 The attapulgite was mechanically and chemically activated by a high energy planetary mill, and attapulgite / TiO2 composite particles were prepared by neutralization hydrolysis. The mechanical and chemical activation of attapulgite and The prepared composite particles thermal stability, particle size and morphology changes. The results show that the surface activity of attapulgite after grinding is greatly enhanced, and the particles become flat and fine. The prepared composite particles have good coating effect and good dispersibility.