ABSTRACT
The intrinsic conductivity of carbon blacks, to a large extent, is a function of the level and the nature of impurities on the carbon surface as well as the presence of chemical groups. Highly conductive carbon blacks, composed of hollow particles, show a better intrinsic conductivity as could be expected from their specific volumes. Conductive carbon blacks are characterized by a high structure and a high porosity. Medalia studied the influence of carbon black nature and morphology on the electrical properties of a composite and observed that some properties of the carbon black were modified in the composite. A very high carbon black concentration is thus initiated in the natural rubber phase which results in a conductive pathway. Incorporation of carbon black and processing of the compound take a very important place in the production of conductive products. Thermal conductivity of a polymer-carbon black compound increases with carbon black concentration.
