Some performance characteristics of plasma surface modified carbon black in the (SBR) matrix

Performance of carbon black reinforced elastomers strongly depend on the ad hesion at the filler-matrix interface. Surface characteristics of carbon bl acks can be changed by use of a number of different techniques each with ce rtain advantages and disadvantages and as regards to these, plasma surface modification is a novel one. This study aims to check the limits of applica bility of plasma surface modification of carbon black to be used in the tir e manufacturing industry. For this purpose, RF range cold plasma has been u tilized in styrene or butadiene atmospheres. Tensile strengths and percent elongations of vulcanizates are found to respond differently if modified fi llers are used as compared with those prepared by the unmodified fillers. G lass transition temperatures of vulcanizates are found to correlate well wi th the results of mechanical properties. Findings are also supported by the SEM pictures. (C) 1999 Published by Elsevier Science Ltd. All rights reser ved.