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Polymers 2018, 10(11), 1291; https://doi.org/10.3390/polym10111291

Tribological Behavior of Nanocomposites Based on UHMWPE Aged in Simulated Synovial Fluid

1
Department of Engineering, University of Messina, C.da Di Dio, 98166 Messina, Italy
2
Institute for Chemical-Physical Processes CNR-IPCF, Viale Ferdinando Stagno d’Alcontres, 37, 98158 Messina, Italy
3
Department of Production Engineering and Printing Technology, Akhbar Elyom Academy 6th of October, Giza 12511, Egypt
4
Department of Production Engineering, Faculty of Mechanical Engineering and Design, Kaunas University of Technology, 51424 Kaunas, Lithuania
5
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, V. Annunziata, 98168 Messina, Italy
*
Author to whom correspondence should be addressed.
Received: 24 October 2018 / Revised: 16 November 2018 / Accepted: 19 November 2018 / Published: 21 November 2018
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Abstract

Ultra High molecular weight polyethylene (UHMWPE) suffers wear degradation in total joint replacements and it needs to be improved. Thus, we enhanced wear resistance of UHMWPE with carbon nanofiller and paraffin oil and studied its tribological behavior in Simulated Synovial Fluid (SSF) for 60 days at 37 °C to reproduce the conditions of a real joint. Ageing in biological fluid accelerates the wear action but nanocomposite exhibited a higher wear resistance compared to UHMWPE because of its higher structural homogeneity. Carbon nanofiller closes the porosity of UHMWPE hindering SSF to penetrate inside. Wear resistance of the nanocomposite with 1.0 wt.% of CNF improved of 65% (before ageing) and of 70% (after 60 days in SSF) with respect to pure UHMWPE. View Full-Text
Keywords: UHMWPE; nanocomposites; ageing; tribological behavior UHMWPE; nanocomposites; ageing; tribological behavior
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Visco, A.; Yousef, S.; Scolaro, C.; Espro, C.; Cristani, M. Tribological Behavior of Nanocomposites Based on UHMWPE Aged in Simulated Synovial Fluid. Polymers 2018, 10, 1291.

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