Abstract
Inorganic–organic hybrid pigments were fabricated by adding inorganic mixture of precipitated white carbon black (SiO2) and TiO2 in preparation process of C.I. Pigment Yellow 13 and 83 composite with a mixed coupling method. Effects of mass ratio of inorganic/organic, SiO2/TiO2 and coupling component on the morphology and structure, color performance, thermal- and photo-stability of hybrid pigments were systematically investigated. It was found that the SiO2 was firstly encapsulated by organic pigment to form a core–shell structure, and then combined with TiO2 through electrical adsorption. The morphology, particle size and distribution of hybrid pigments could be controlled by the mass ratio of inorganic/organic and SiO2/TiO2, and the color performance of hybrid pigments could be adjusted by the mass ratio of inorganic/organic and coupling component. Additionally, the hybrid pigment showed a better thermal- and photo-stability than organic pigment.
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