CONDUCTING POLYMERIC COMPOSITES BASED ON AN INEFFECT OF VARIOUS FACTORS ON THE ELECTRIC-CONDUCTIVITY OF POLYETHYLENE-BASED COMPOSITES FILLED WITH CARBON-BLACK

The temperature dependences of electric properties of conducting compo sites (rho less than or similar to 10(3) Omega m) based on PE and carb on black, having positive temperature coefficient of resistance, were studied. When plotted in the Ahrrenius coordinates, the dependences ar e described by several strait lines with inflections. The current-volt age curves of these composites show a similar behavior. The temperatur e dependences change dramatically upon irradiation of the composites, variation of the temperature protocol of the tests, and mechanical com pression of the samples. The data obtained led to several conclusions concerning the mechanism of conduction of the composite materials stud ied.