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The relations between wear behavior and basic material properties of graphene-based materials reinforced ultrahigh molecular weight polyethylene

This article aims to investigate the influence of reinforcing graphene oxide (GO) and graphite flakes (GF) fillers into ultrahigh molecular weight polyethylene (UHMWPE) for orthopedic application. These fillers were expected to physically bond to UHMWPE, thus can enhance the subsurface strength, imp...

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Main Authors:	Shahemi, N. H., Liza, S., Sawae, Y., Morita, T., Fukuda, K., Yaakob, Y.
Format:	Article
Published:	John Wiley and Sons Ltd 2021
Subjects:	T Technology (General)
Online Access:	http://eprints.utm.my/id/eprint/94663/ http://dx.doi.org/10.1002/pat.5428
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spelling	my.utm.946632022-03-31T15:13:42Z http://eprints.utm.my/id/eprint/94663/ The relations between wear behavior and basic material properties of graphene-based materials reinforced ultrahigh molecular weight polyethylene Shahemi, N. H. Liza, S. Sawae, Y. Morita, T. Fukuda, K. Yaakob, Y. T Technology (General) This article aims to investigate the influence of reinforcing graphene oxide (GO) and graphite flakes (GF) fillers into ultrahigh molecular weight polyethylene (UHMWPE) for orthopedic application. These fillers were expected to physically bond to UHMWPE, thus can enhance the subsurface strength, improving the wear behavior of the composites. UHMWPE/GO and UHMWPE/GF composites were prepared at 0.1 and 1.0 wt% by melt-blending, followed by a compression molding technique. A multidirectional pin-on-disc wear test was performed to simulate the kinematic of hip application. Whilst getting exposed in the artificial in-vivo lubricant bath (30 v/v% diluted bovine serum). Following this, the wear mechanism fostered by each filler (GO and GF) was determined by wear features obtained from the optical microscope and scanning electron microscope (SEM). The crystallinity degree and crystal defect were assessed using x-ray diffraction (XRD). The mechanical properties of fabricated composites were evaluated by using a universal testing machine and Vickers microhardness. We found that UHMWPE/GO has the lowest specific wear rate due to the improved subsurface strength, as the reduction of a weak adhesive point was observed on the worn surface. Meanwhile, higher GF content (1 wt%) in UHMWPE displayed a lower specific wear rate than neat UHMWPE after completing the 10 km sliding distance attributed to the filler resurfaced, responsible for providing a strong resistance of the shear stress applied upon sliding with the metal counterface. Interestingly, the hardness and tensile strength for both UHMWPE/GO and UHMWPE/GF increased, although the crystallinity percentage was declining compared to neat UHMWPE. John Wiley and Sons Ltd 2021 Article PeerReviewed Shahemi, N. H. and Liza, S. and Sawae, Y. and Morita, T. and Fukuda, K. and Yaakob, Y. (2021) The relations between wear behavior and basic material properties of graphene-based materials reinforced ultrahigh molecular weight polyethylene. Polymers for Advanced Technologies, 32 (11). ISSN 1042-7147 http://dx.doi.org/10.1002/pat.5428 DOI: 10.1002/pat.5428
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	T Technology (General)
spellingShingle	T Technology (General) Shahemi, N. H. Liza, S. Sawae, Y. Morita, T. Fukuda, K. Yaakob, Y. The relations between wear behavior and basic material properties of graphene-based materials reinforced ultrahigh molecular weight polyethylene
description	This article aims to investigate the influence of reinforcing graphene oxide (GO) and graphite flakes (GF) fillers into ultrahigh molecular weight polyethylene (UHMWPE) for orthopedic application. These fillers were expected to physically bond to UHMWPE, thus can enhance the subsurface strength, improving the wear behavior of the composites. UHMWPE/GO and UHMWPE/GF composites were prepared at 0.1 and 1.0 wt% by melt-blending, followed by a compression molding technique. A multidirectional pin-on-disc wear test was performed to simulate the kinematic of hip application. Whilst getting exposed in the artificial in-vivo lubricant bath (30 v/v% diluted bovine serum). Following this, the wear mechanism fostered by each filler (GO and GF) was determined by wear features obtained from the optical microscope and scanning electron microscope (SEM). The crystallinity degree and crystal defect were assessed using x-ray diffraction (XRD). The mechanical properties of fabricated composites were evaluated by using a universal testing machine and Vickers microhardness. We found that UHMWPE/GO has the lowest specific wear rate due to the improved subsurface strength, as the reduction of a weak adhesive point was observed on the worn surface. Meanwhile, higher GF content (1 wt%) in UHMWPE displayed a lower specific wear rate than neat UHMWPE after completing the 10 km sliding distance attributed to the filler resurfaced, responsible for providing a strong resistance of the shear stress applied upon sliding with the metal counterface. Interestingly, the hardness and tensile strength for both UHMWPE/GO and UHMWPE/GF increased, although the crystallinity percentage was declining compared to neat UHMWPE.
format	Article
author	Shahemi, N. H. Liza, S. Sawae, Y. Morita, T. Fukuda, K. Yaakob, Y.
author_facet	Shahemi, N. H. Liza, S. Sawae, Y. Morita, T. Fukuda, K. Yaakob, Y.
author_sort	Shahemi, N. H.
title	The relations between wear behavior and basic material properties of graphene-based materials reinforced ultrahigh molecular weight polyethylene
title_short	The relations between wear behavior and basic material properties of graphene-based materials reinforced ultrahigh molecular weight polyethylene
title_full	The relations between wear behavior and basic material properties of graphene-based materials reinforced ultrahigh molecular weight polyethylene
title_fullStr	The relations between wear behavior and basic material properties of graphene-based materials reinforced ultrahigh molecular weight polyethylene
title_full_unstemmed	The relations between wear behavior and basic material properties of graphene-based materials reinforced ultrahigh molecular weight polyethylene
title_sort	relations between wear behavior and basic material properties of graphene-based materials reinforced ultrahigh molecular weight polyethylene
publisher	John Wiley and Sons Ltd
publishDate	2021
url	http://eprints.utm.my/id/eprint/94663/ http://dx.doi.org/10.1002/pat.5428
_version_	1729703203892625408
score	13.211869

The relations between wear behavior and basic material properties of graphene-based materials reinforced ultrahigh molecular weight polyethylene

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