Effect of cohesive property of carbon black on electrical conduction of CB-resin composites

Abstract

The temperature dependence of carbon black(CB)-resin composites has been studied in the wide temperature range from −160°C to 220°C by changing the curing temperature. Resistance of the composite decreases at first and increases around 70°C and then irreversibly decreases above the glass transition temperature of binder resin for ascending temperature. The minimum and maximum of resistance on the temperature dependence have been discussed from the point of view of cohesive property of CB particle and physical property of resin. © 1990, The Society of Polymer Science, Japan. All rights reserved.