Calcium carbonate composite titanium dioxide as well as preparation method and application thereof

The invention belongs to the technical field of coatings, and particularly relates to calcium carbonate composite titanium dioxide which comprises the following components in parts by weight: 23-26 parts of calcium carbonate, 12-15 parts of titanium dioxide, 3-6 parts of zirconium oxide, 48-51 parts of absolute ethyl alcohol, 0.25-1 part of KH-792 and 4-7 parts of tetraethoxysilane. The invention further discloses a preparation method and application of the calcium carbonate composite titanium dioxide. The calcium carbonate composite titanium dioxide disclosed by the invention is high in covering power, high in whiteness, stable in chemical property and simple in production process flow, and can be used as a pigment in an inorganic coating instead of titanium dioxide. 本发明属于涂料技术领域，具体涉及一种碳酸钙复合钛白粉，包括以下重量份组分：碳酸钙23-26份、钛白粉12-15份、氧化锆3-6份、无水乙醇48-51份、KH-7920.25-1份、正硅酸乙酯4-7份。本发明还公开了碳酸钙复合钛白粉的制备方法和应用。本发明的碳酸钙复合钛白粉遮盖力高，白度高，化学性质稳定，生产工艺流程简单，可替代钛白粉作为颜料在无机涂料中使用。