EFFECT OF 1-CHLORO-2,3-EPOXY-PROPANE ON THE CONDUCTION MECHANISM IN POLYVINYL-CHLORIDE

The nature of the electrical conduction in polyvinyl chloride (PVC) co ntaining 1-chloro-2,3-epoxy-propane has been studied at a constant tem perature of 297 K. In the first region of the I-V characteristics (slo pe approximate to 1), the conduction is Ohmic because there is no inje ction of carriers from the electrode contact. The Richardson-Schottky effect is the predominant conduction mechanism in the second region (s lope approximate to 2). The variation of de conductivity, a may be due to the combined effect of change in a with temperature, and the natur e of trap distribution in the sample. At higher temperatures, the incr ease in a may be due to the sample softening.