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Mechanism of the Effect of Gamma Irradiation on the Surface Properties of Polytetrafluoroethylene

  • A. Yu. Obvintsev
  • S. A. Serov
  • N. V. Sadovskaya
  • S. A. Khatipov
  • V. M. Bouznik
Article

Abstract

Changes in the work of adhesion γSL of polar and nonpolar liquids, as well as the dispersion and polar components of the surface energy of γS suspension-polymerized polytetrafluoroethylene (PTFE) as a function of the gamma-radiation dose are analyzed quantitatively. A physicochemical model for increasing the work of adhesion γSL of a polar liquid is proposed. The model is based on the formation of a double electrostatic layer at the phase interface due to ion-dipole interaction.

Keywords

polytetrafluoroethylene gamma irradiation dielectric increment surface energy polar groups 

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • A. Yu. Obvintsev
    • 1
  • S. A. Serov
    • 1
  • N. V. Sadovskaya
    • 1
  • S. A. Khatipov
    • 2
  • V. M. Bouznik
    • 3
  1. 1.Karpov Institute of Physical ChemistryMoscowRussia
  2. 2.Nesmeyanov Institute of Organoelement CompoundsRussian Academy of SciencesMoscowRussia
  3. 3.All-Russian Scientific Research Institute of Aviation MaterialsMoscowRussia

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