Abstract
PVC compounds containing CaCO 3 filler and plasticizers were prepared with or without a trifunctional acrylic crosslinking agent and irradiated by 60Co γ-rays under air or nitrogen atmosphere. The samples without crosslinking agent did not respond to irradiation. The mechanical properties of the other samples such as tensile strength, yield strength and % elongation showed a great sensitivity to irradiation. Lower values of Young's modulus were observed for samples irradiated in air compared with samples irradiated in nitrogen indicating the effect of atmosphere in the range of irradiation studied.
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