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Irradiation effects on thermal, surface, and physicomechanical properties of ethylene and vinyl acetate copolymer

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Abstract

The structural and thermal transitions for ethylene and vinyl acetate copolymer (EVA) samples irradiated by fast electrons at doses in the range of 2.5–25 Mrad were investigated by DSC and X-ray diffraction analysis. The parameters of chemical bonds in the amorphous phase of copolymer were determined. The change in the degree of crystallinity, melting temperature, and crystallite sizes before and after radiochemical modification were estimated. The obtained results were analyzed and corresponded to the physicomechanical properties of copolymers. The surface energy of copolymers before and after irradiation was defined. The strength of adhesive joints based on EVA from PET substrates and the influence of radiochemical modification of adhesive before joint formation on its strength were analyzed.

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Correspondence to A. E. Chalykh.

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Original Russian Text © Yu.Yu. Gladkikh, A.A. Shcherbina, A.E. Chalykh, R.R. Khasbiullin, V.Yu. Stepanenko, T.P. Puryaeva, 2010, published in Klei. Germetiki. Tekhnologii, 2010, No. 7, pp. 14–21.

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Gladkikh, Y.Y., Shcherbina, A.A., Chalykh, A.E. et al. Irradiation effects on thermal, surface, and physicomechanical properties of ethylene and vinyl acetate copolymer. Polym. Sci. Ser. D 4, 20–26 (2011). https://doi.org/10.1134/S1995421211010059

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  • DOI: https://doi.org/10.1134/S1995421211010059

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