Talc/TiO2 composite particle was prepared with TiO2 coating on the surfaces of the talc particles by mechano-chemical method. X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to investigate the microstructures and morphologies of the composite particles. The mechanism of the mechano-chemical reaction was researched by infrared spectra (IR) and X-ray photoelectron spectroscopy (XPS). The prepared talc/TiO2 composite particle has similar pigment properties compared with TiO2, with its hiding power 10.45[Formula: see text]g/cm3 and whiteness 97.49%. The results show that TiO2 coated evenly on the surfaces of the talc particles by Si–O–Ti and Mg–O–Ti bonds through surface dehydroxylation reaction.

中文翻译：

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机械化学法制备滑石粉/TiO2复合颗粒材料的表征

滑石/二氧化钛2TiO复合粒子的制备2采用机械化学方法在滑石颗粒表面包覆。X射线衍射（XRD）和扫描电子显微镜（SEM）用于研究复合颗粒的微观结构和形貌。通过红外光谱（IR）和X射线光电子能谱（XPS）研究了机械化学反应的机理。制备的滑石粉/TiO2与二氧化钛相比，复合颗粒具有相似的颜料性质2, 遮盖力10.45[公式：见正文]g/cm3白度97.49%。结果表明，TiO2通过表面脱羟基反应，通过 Si-O-Ti 和 Mg-O-Ti 键均匀地包覆在滑石颗粒表面。