Abstract—A comparative analysis of the structural, tribological, and mechanical properties of polymer–polymer composites with the optimized composition UHMWPE + 15 wt % HDPE-g-SMA + 15 wt % PP, obtained by FDM (fused deposition modeling) and compressive sintering (hot-pressing) methods has been performed. It is shown that the tribomechanical characteristics (wear resistance, friction coefficient, elasticity modulus, yield limit, strength, elongation at break) of 3D-printed extrudable polymer–polymer UHMWPE composites exceed those of hot-pressed composites due to a more homogeneous supramolecular structure with enlarged crystallinity. Tribotests of extrudable UHMWPE composites in different friction modes (PV) demonstrates their applicability in joints operating in a wide range of loads and sliding rates.
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Funding
The study was carried out according to the basic research plan of state academies of sciences 2013–2020 and was supported by a grant from the President of the Russian Federation for State Support of Leading Scientific Schools (NSh-5875.2018.8). The authors are grateful to the Russian Foundation for Basic Research and Belarusian Foundation for Basic Research for funding (project no. 18-58-00037_Bel_a (T18R-286).
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Panin, S.V., Buslovich, D.G., Kornienko, L.A. et al. Comparative Analysis of Tribological and Mechanical Properties of Extrudable Polymer–Polymer UHMWPE Composites Fabricated by 3D Printing and Hot-Pressing Methods. J. Frict. Wear 41, 228–235 (2020). https://doi.org/10.3103/S1068366620030125
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DOI: https://doi.org/10.3103/S1068366620030125