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

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...

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Detalles Bibliográficos
Autores principales: Visco, Annamaria, Yousef, Samy, Scolaro, Cristina, Espro, Claudia, Cristani, Mariateresa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6401863/
https://www.ncbi.nlm.nih.gov/pubmed/30961216
http://dx.doi.org/10.3390/polym10111291
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author Visco, Annamaria
Yousef, Samy
Scolaro, Cristina
Espro, Claudia
Cristani, Mariateresa
author_facet Visco, Annamaria
Yousef, Samy
Scolaro, Cristina
Espro, Claudia
Cristani, Mariateresa
author_sort Visco, Annamaria
collection PubMed
description 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.
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spelling pubmed-64018632019-04-02 Tribological Behavior of Nanocomposites Based on UHMWPE Aged in Simulated Synovial Fluid Visco, Annamaria Yousef, Samy Scolaro, Cristina Espro, Claudia Cristani, Mariateresa Polymers (Basel) Article 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. MDPI 2018-11-21 /pmc/articles/PMC6401863/ /pubmed/30961216 http://dx.doi.org/10.3390/polym10111291 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Visco, Annamaria
Yousef, Samy
Scolaro, Cristina
Espro, Claudia
Cristani, Mariateresa
Tribological Behavior of Nanocomposites Based on UHMWPE Aged in Simulated Synovial Fluid
title Tribological Behavior of Nanocomposites Based on UHMWPE Aged in Simulated Synovial Fluid
title_full Tribological Behavior of Nanocomposites Based on UHMWPE Aged in Simulated Synovial Fluid
title_fullStr Tribological Behavior of Nanocomposites Based on UHMWPE Aged in Simulated Synovial Fluid
title_full_unstemmed Tribological Behavior of Nanocomposites Based on UHMWPE Aged in Simulated Synovial Fluid
title_short Tribological Behavior of Nanocomposites Based on UHMWPE Aged in Simulated Synovial Fluid
title_sort tribological behavior of nanocomposites based on uhmwpe aged in simulated synovial fluid
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6401863/
https://www.ncbi.nlm.nih.gov/pubmed/30961216
http://dx.doi.org/10.3390/polym10111291
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