Preparation of Yellow Color Pearlescent Pigments of CeO_2-Mica

摘要

A wet-chemical deposition method was developed to synthesize CeO_2-mica pearlescent pigment using CeO_2 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 deg C, cover ratio is 30 - 40 percent, stirring velocity is about 170 r/min, pH value is 6.50 -7.50, heating rate is 3 - 5 deg C/min and heat treatment temperature is 800 deg C. The crystal phases and the microstructure of the pearlescent pigment powders were also analyzed by DTA-TG, XRD and SEM.