Abstract
In this study, the core–shell wrapping structure red pigment with γ-Ce2S3 colorant as core and borate glass-ceramics as shell was prepared by low temperature self-propagating combustion method with solid sulfur as sulfur source. The effects of H3BO3 addition amount on the chromaticity and temperature stability of the coated pigment were studied. It was found that when the addition amount of nB/Ce was equal to1.40, the coated pigment with the optimal stability and chromaticity value can be obtained, and its redness value (a*) was 42.01. This coated pigment still maintained a certain redness (a*=30.86) after calcined at 680 °C for 10 min in air. This indicates that the temperature stability of borate glass-ceramics coated γ-Ce2S3 red pigment with core–shell structure can be improved from 350 °C to 680 °C.
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