Studies on the effects of gamma irradiation on nontoxic PVC formulations

Abstract

Abstract Thirty‐five PVC formulations were compounded initially from which selected nontoxic formulations were subjected to studies in changes of mechanical, optical, migratory, viscosity, and toxicity properties due to gamma irradiation to 2.5 M rads. Degree of discoloration was found to vary from negligible to intense discoloration after irradiation on the selected samples. The nontoxic character of all samples was retained after irradiation. One formulation (R 2 ) showed excellent radiation resistance and minimum discoloration. Effects of various additives on PVC radiation stability is also discussed.