Structure Modification and Enhancement of Wear Resistance of Ultra-High-Molecular-Weight Polyethylene by Low-Pressure Helium Plasma Treatment

V. N. Vasilets; Василец В. Н.; Yu. O. Velyaev; Веляев Ю. О.; N. A. Torkhov; Торхов Н. А.; A. A. Mosunov; Мосунов А. А.; L. V. Potopakhin; Потопахин Л. В.; M. P. Evstigneev; Евстигнеев М. П.

doi:10.31857/S0023119323010138

Structure Modification and Enhancement of Wear Resistance of Ultra-High-Molecular-Weight Polyethylene by Low-Pressure Helium Plasma Treatment

Authors: Vasilets V.N.¹, Velyaev Y.O.², Torkhov N.A.², Mosunov A.A.², Potopakhin L.V.², Evstigneev M.P.²
Affiliations:
1. Branch of Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences
2. Sevastopol State University
Issue: Vol 57, No 3 (2023)
Pages: 230-237
Section: PLASMA CHEMISTRY
URL: https://vietnamjournal.ru/0023-1193/article/view/661510
DOI: https://doi.org/10.31857/S0023119323010138
EDN: https://elibrary.ru/TBAOLQ
ID: 661510

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Abstract

The surface treatment of ultra-high-molecular-weight polyethylene (UHMWPE) in helium
plasma at a pressure of 0.133 mbar has been studied by IR spectroscopy, X-ray photoelectron spectroscopy,a nd atomic force microscopy. It has been shown that the helium plasma treatment leads to the formation of double bonds in the UHMWPE surface layer and the associated formation of intermolecular crosslinks. The crosslinking of the surface layer is accompanied by a decrease in the nanowear of the UHMWPE surface by
more than three orders of magnitude, which is confirmed by measurements using an atomic force microscope in the contact mode

Keywords

ultra-high-molecular-weight polyethylene, low-pressure plasma, X-ray photoelectron spectroscopy, IR spectroscopy, atomic force microscopy

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