关键词: 铜铬黑, 固相法, 粒径, 着色力, 掺杂, 铜铬黑, 固相法, 粒径, 着色力, 掺杂

Abstract: The copper chromite black pigment (CuCr2O4) with spinel structure was successfully prepared by solid phase calcinations method at high temperature using copper oxide and chromium oxide as raw materials. The crystal structure，morphology and grain size of the CuCr2O4 were determined by XRD，SEM and the particle size analyzer respectively. The influence of processing parameters，such as the mixing process，the time of ball milling，calcination temperature and time of the precursor，on the crystal structure and grain size of the CuCr2O4 were studied in detail，and the effect of its tinting strength was systematically discussed by adding modifiers. The results show that high energy ball milling can effectively control the grain size and homogenization of particles in the pigment，and the tinting strength of pigment was greatly improved with the presence of NiO and CoO modifiers. The CuCr2O4 with strong tinting strength and particle size distribution uniformity was synthesized under the condition of ball milling for 10 minutes and calcination at 900 ℃ for 3 hours.

Key words: Copper chromite black pigment, Solid phase calcinations method, High- energy ball- milling, Particle size, Tinting strength, copper chromite black pigment, solid phase calcinations method, high-energy ball-milling, particle size, tinting strength