MANUFACTURING METHOD OF BLUE CERAMIC NANO PIGMENT

摘要

The present invention relates to a method of manufacturing a blue ceramic nanopigment comprising: a step of mixing precursors including solvents, chelating agents and metal ions; a step of dissolving the chelating agents by heating a mixture of the solvents, chelating agents and precursors while heating the mixture; a step of forming a polymer complex by progressing polyesterification by heating a solution in which the chelating agents are dissolved at a first temperature; a step of performing a first heat treatment on the polymer complex at a second temperature; and a step of forming the blue ceramic nanopigment of a powder shape by performing a second heat treatment on the polymer complex at a third temperature higher than the second temperature. The precursors include at least one metal selected among nickel (Ni) and cobalt (Co). The blue ceramic nanopigment has a spinel structure. The method of manufacturing the blue ceramic nanopigment of the present invention simplifies a process, is reliable, is suitable for mass production and is economical.