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选用无机矿物粉体为基料,官能化金红石型TiO2浆液为成膜物质,KM-10为官能化助剂,制备了无机矿物粉体/TiO2复合粒子。采用正交设计实验法,探讨了不同组分的配比及无机矿物粉体的种类对合成包覆产物遮盖力的影响,最佳组分的重量配比为:m(TiO2浆液)∶m(KM-10)∶m(硅酸铝)=0.25∶0.05∶1,包覆产物的遮盖力可达59.9g/cm2。产物FTIR结构分析表明,TiO2是通过化学键包覆在无机矿物粉体表面;经TEM分析表明,产物呈球形结构,分散性良好,平均粒径约为1.0μm。
The inorganic mineral powder as the base material, the functionalized rutile TiO2 slurry as the film-forming material, the KM-10 as the functionalization aid, and the inorganic mineral powder / TiO2 composite particle were prepared. Orthogonal experimental design was used to investigate the effect of the ratio of different components and the types of inorganic mineral powders on the hiding power of the synthetic coated products. The weight ratio of the best component was: m (TiO2 slurry): m ( KM-10): m (aluminum silicate) = 0.25: 0.05: 1, covering the product of up to 59.9g / cm2. FTIR structural analysis of the product showed that TiO2 was coated on the surface of the inorganic mineral powder by chemical bonding. The TEM showed that the product had a spherical structure and good dispersibility, with an average particle size of about 1.0 μm.