Automatic Welding, 2022, №04

2022 №04 (06)

DOI of Article 10.37434/as2022.04.07

2022 №04 (01)

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"Avtomatychne Zvaryuvannya" (Automatic Welding), #4, 2022, pp. 50-53

Chemical welding of nanocomposites based on epoxy resin and oxidized graphene

A.V. Vashchuk, S.I. Motrunich, V.L. Demchenko, M.V. Iurzhenko

E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

In the work, the technology of chemical welding of polymer nanocomposites based on epoxy resins and oxidized graphene was developed. Overlapped welding of film materials with a thickness of 0.5 mm was carried out in the conditions of isothermal heating over 150 °C and under the pressure of the restrictive plate. The choice of effective welding conditions was made on the basis of changes in welding time. It is shown that strength of welded joints grows with an increase in welding time from 30 to 60 min. The chemical structure of welded joints material was examined by the Fourier-transform infrared spectroscopy. The peculiarities of the structural organization of nanocomposite films and their welded joints were investigated by the method of wide-angle X-ray scattering. 8 Ref., 1 Tabl., 5 Fig.
Keywords: epoxy nanocomposites, oxidized graphene, vitremers, welded joints, chemical welding


Received: 30.03.2022

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