Surface Treatment of Conductive Carbon Blacks and Their Effect on the Properties of Conductive Composites
Methods have been developed for surface treatment of conductive carbon blacks. The surface function groups in conductive carbon blacks were analyzed using Fourier transform IR spectroscopy. The surface treatment methods have been developed on the basis of the observed surface functional groups. In this method, the surface functional group of the conductive carbon blacks are reacted with fatty acid chlorides in a solvent suspension. Qualitative observation indicated improved compatibility between the surface treated carbon black and PVC matrix which resulted in improvement in melt flow properties, dispersion, electrical conductivity, and mechanical properties. A comparison of properties between chemical treated and untreated carbon black composites is discussed.
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