White-colored composite nanoparticles were prepared by miniemulsion polymerization using a metal soap as colorant for improved dispersion stability.
The effects of the concentration of the white colorant and the emulsification conditions on the formation of composite nanoparticles, the particle size distribution, the dispersion stability and the degree of suppression were investigated. As a result, white-colored composite nanoparticles were formed, of which diameter was 95-175nm.
It was found that the composite nanoparticles were superior to titanium dioxide pigment in the dispersion stability but inferior in the degree of suppression.
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