PULSE RADIATION-INDUCED CONDUCTIVITY OF RUBBER

The conductivity induced in several types of rubber by pulse electron radiation (pulse duration 2.5 mus, dose rate 2 x 10(8) Gy/s) was studi ed. The decay kinetics of the delayed component of the radiation-induc ed conductivity was examined. It was found that compounds with high ra diation-induced conductivity had considerable effect on the overall re sponse of the filled system, whereas the effect of the inclusions with high dark conductivity (graphite) was, at first approximation, neglig ible. The results are explained by the presence of free porosity, sign ificant capture of charge carriers by the technological additives incl uded into the rubber compositions, and the effect of the type of dispe rsed filler.