为了揭示电气石/TiO_2复合材料使电气石增白和具有颜料性质的内在机制,采用X射线衍射(XRD)、扫描电镜(SEM)测试和电气石、TiO_2颗粒表面官能团性质的分析等方法,研究了电气石/TiO_2复合材料的组成与微观形态。研究结果表明,电气石/TiO_2复合材料由包核物电气石颗粒和其表面包覆的结晶Ti_O2所组成,Ti_O2在电气石表面形成均匀、牢固的包覆层。研究结论初步反映了电气石和Ti_O2的作用性质,有助于对电气石/Ti_O2复合材料综合性能的认识和应用。 In order to reveal the intrinsic mechanism of tourmaline / TiO_2 composites whitening tourmaline and pigment, X-ray diffraction (XRD), scanning electron microscopy (SEM) and analysis of the surface functional groups of tourmaline and TiO_2 particles were studied. The tourmaline / TiO_2 composite material composition and microscopic morphology. The results show that the tourmaline / TiO_2 composites consist of tourmaline particles and crystalline Ti_2O coated on the surface, and Ti_O2 can form a uniform and firm coating on tourmaline surface. The conclusions of the study initially reflect the functional properties of tourmaline and Ti_O2 and contribute to the understanding and application of the comprehensive properties of tourmaline / Ti_O2 composites.