Abstract A rutile-grade multipurpose TiO2 pigment with surface coatings of zirconia and alumina is prepared under controlled conditions. HRTEM, FTIR, ξ-Potential etc. were used to characterize the morphology, structure and electrokinetics. A continuous and compact film of zirconia was anchored on the base TiO2 particles surface as the innermost coating. A composite coating of alumina was precipitated under controlled conditions which facilitated the precipitation of both dense, compact and porous, boehmite alumina on the surface of zirconia-coated TiO2 particle surface. Comparative evaluation of the pigmentary properties of the coated pigment revealed superiority in durability and optical properties of the modified pigment over conventional enamel-grade and general-purpose grade TiO2 pigments respectively.

中文翻译：

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用于涂料应用的具有改进性能的多用途二氧化钛颜料的制备

摘要 在可控条件下制备了具有氧化锆和氧化铝表面涂层的金红石级多用途二氧化钛颜料。HRTEM、FTIR、ξ-Potential等用于表征形态、结构和电动力学。连续致密的氧化锆薄膜固定在作为最内涂层的基础 TiO2 颗粒表面上。氧化铝复合涂层在受控条件下沉淀，这有助于致密、致密和多孔的勃姆石氧化铝在氧化锆涂覆的 TiO2 颗粒表面上沉淀。涂层颜料颜料性能的比较评估表明，改性颜料的耐久性和光学性能分别优于传统的搪瓷级和通用级二氧化钛颜料。