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Preparation of Yellow Color Pearlescent Pigments of CeO2-Mica

A wet-chemical deposition method was developed to synthesize CeO2-mica pearlescent pigment using CeO2 as the coating material and mica as the base material. The main factors affecting the synthesis processes were studied. The optimum conditions were obtained were as: the coating reaction temperature is 70 ~ 80°C, cover ratio is 30 ~ 40%, stirring velocity is about 170 r/min, pH value is 6.50 ~ 7.50, heating rate is 3 ~ 5°C/min and heat treatment temperature is 800°C. The crystal phases and the microstructure of the pearlescent pigment powders were also analyzed by DTA-TG, XRD and SEM.