A study of the redistribution conditions of carbon black particles from the bulk to the interface in heterogeneous polymer blends

The redistribution conditions of carbon black particles to the interface between polymers were studied based on the measurement of the value of superadditive conductivity of several heterogeneous polymer blends filled with powdered carbon black. The redistribution of carbon black from the polymer phase that has low ability to wet the powder proceeds efficiently only to the boundary with polymer having better wetting ability. Significant differences in the conditions of particle localization at the boundaries between polymer phases and between two low-molecular-weight liquids arising from the specific features of polymer adsorption were demonstrated.