Spectral Investigations of γ-Irradiated Polyethylene/CdS+ZnS Composite Films

Abstract

Gamma-irradiated samples of the polyethylene/CdS+ZnS (PE/CdS+ZnS) composite were studied by electron paramagnet resonance and Fourier infrared spectroscopy methods. Based on the electron paramagnet resonance spectra, the nature of the induced paramagnetic radiation defects and their quantitative dependence on the absorbed dose of gamma radiation are identified. It has been established that the studied polymer composites have a higher radiation resistance in the range of absorption doses D_γ = 30–100 kGy compared to pure polymer. The obtained results were confirmed by Fourier infrared spectroscopy, and it was shown that the observed changes are associated with a change in the supramolecular structure of PE/CdS+ZnS irradiated with γ-quanta.