Suggested is a composite particle comprising or consisting of a solid core partially or entirely coated with at least one inorganic compound, wherein (a) said solid core is a carbon black particle carrying functional groups on its surface, and (b) said at least one inorganic compound shows a particle size of from about 5 to about 100 nm, wherein said solid core particles show a diameter of primary particle size from about 5 to about 500 nm.

A method for enhancing the dispersion stability of carbon black-based aqueous suspensions is provided. The method includes forming a thin sodium dodecyl sulfate (SDS) monolayer on the outer surface of the carbon black materials before the carbon black materials are dispersed in a base fluid. This is done by mixing SDS with dry carbon black powder at a ratio of about 1:0.5 by weight for about 15 minutes, under a controlled environment. After mixing the SDS with dry carbon black powder, the resulting mixture is added to distilled water and dispersed for 45 minutes using a sonicator. Once the dispersion process is completed, the suspension is stored for future use.

A method for enhancing the dispersion stability of carbon black-based aqueous suspensions is provided. The method includes forming a thin sodium dodecyl sulfate (SDS) monolayer on the outer surface of the carbon black materials before the carbon black materials are dispersed in a base fluid. This is done by mixing SDS with dry carbon black powder at a ratio of about 1:0.5 by weight for about 15 minutes, under a controlled environment. After mixing the SDS with dry carbon black powder, the resulting mixture is added to distilled water and dispersed for 45 minutes using a sonicator. Once the dispersion process is completed, the suspension is stored for future use.