Autors: Nikolov, K. E., Kandeva, M. K., Dimitrov, L. V.
Title: Friction of Ultra-High-Molecular-Weight Polyethylene, Modified with Carbon Nanotubes
Keywords: Tribology, friction, UHMWPE, carbon nanotubes, composite mat

Abstract: The present study investigates the coefficient of friction of new composites based on UHMWPE with the addition of different percentages of carbon nanotubes (CNTs) - 0.5%, 0.75%, 1.0% and 1.5%. UHMWPE samples with carbon nanotubes, samples of 0.5%, 0.75%, 1.0% and 1.5% carbon nanotubes (UHMWPE-CNTs) and samples with the same carbon nanotube content were made, but with carbon nanotubes subjected to Electroless Nickel Composite Coating with nanoparticles of SiC (UHMWPE-NiCNTs). The coefficient of friction is investigated with a tribometer in a kinematic scheme "Thumb-Disc" without lubricant in a high-alloy steel frame with hardness HRC=56.9 and roughness Ra=2.35 m. All samples were tested under the same friction conditions - friction path, sliding speed, roughness of the counterpart and samples, ambient temperature. Results and regularities of the effect of carbon nanotubes UHMWPE-CNTs and UHMWPE-NiCNTs on the coefficient of friction at different normal loads are obtained.



    Proceeding on Engineering Sciences, vol. 1, issue 1, pp. 77-83, 2019, Serbia, Faculty of Engineering, University of Kragujevac, ISBN ISSN: 2620-2832

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