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Mechanical Characteristics of a Polymer Composite Material Based on Gamma-Irradiated Low-Molecular-Weight Rubbers

Abstract

The effect of gamma-irradiation with doses of 5, 10, 15, and 20 Mrad on the mechanical characteristics of a polymer composite material has been studied. It has been shown that an increase in the radiation dose leads to an increase in the breaking stress and a decrease in the breaking strain. Toughness values have been calculated, from which it follows that the strength of the investigated samples (toughness) increases with increasing radiation dose, reaching a maximum at 20 Mrad. An increase in the test temperature leads to a sharp decrease in the toughness. Irradiation with gamma-rays to a dose of 20 Mrad leads to the material acquiring the properties of ebonite, as indicated by a sharp decrease in the breaking strain and an increase in the breaking stress.

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Correspondence to E. M. Nurullaev.

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Translated by S. Zatonsky

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Nurullaev, E.M., Oniskiv, V.D. Mechanical Characteristics of a Polymer Composite Material Based on Gamma-Irradiated Low-Molecular-Weight Rubbers. High Energy Chem 55, 150–154 (2021). https://doi.org/10.1134/S0018143921020107

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  • DOI: https://doi.org/10.1134/S0018143921020107

Keywords:

  • polymer composites
  • gamma radiation
  • breaking strain
  • low-molecular-weight rubbers
  • toughness
  • mechanical characteristics
  • breaking stress
  • radiation dose