Moldavian Journal of the Physical Sciences (Dec 2010)

Improvement in the radiation stability of synthetic elastomer epdm modified with metallic selenium

  • Jipa, S.,
  • Mantsch, A.,
  • Jipa, S.

Journal volume & issue
Vol. 9, no. 3-4
pp. 286 – 290

Abstract

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This study presents the antioxidant effects induced by metallic selenium in ethylene- propylene terpolymer (EPDM) subjected to accelerated ageing by γ-irradiation. Several doses were applied up to 100 kGy in order to qualify this material for nuclear applications. Three concentrations (0.25, 0.50, and 1% w/w) of Se in elastomer were prepared. FTIR spectroscopy and chemiluminescence were performed for characterization of oxidation progress. Kinetic parameters expressed in a function of received dose are assessed for emphasizing the stabilization efficiency of selenium.