Development of Mixing Methods of UHMWPE/Carbon Nanotubes (CNT) Composites for Use in Artificial Joints

This study focused on the mixing methods used in the manufacture of ultra-high molecular weight polyethylene (UHMWPE) reinforced by multi-walled carbon nanotubes (MWCNTs) and how these methods enhance the wear performance of the composite. Two mixing methods, ball milling and ultra-sonication, were...

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Bibliographic Details
Published in:Key engineering materials 2017-06, Vol.739, p.81-86
Main Authors: Yu, Jacky, Baena, Juan Carlos, Tenison, Nicholas, Peng, Zhong Xiao
Format: Article
Language:English
Subjects:
Artificial joints
Ball milling
Coefficient of friction
Hardness
Methods
Multi wall carbon nanotubes
Nanotubes
Production methods
Surgical implants
Ultra high molecular weight polyethylene
Wear
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Summary:This study focused on the mixing methods used in the manufacture of ultra-high molecular weight polyethylene (UHMWPE) reinforced by multi-walled carbon nanotubes (MWCNTs) and how these methods enhance the wear performance of the composite. Two mixing methods, ball milling and ultra-sonication, were used in this study, and the most effective forms of these mixing methods were analysed to allow an effective comparison. The performance of the mixing methods was evaluated through a comparison of wear volume loss, coefficient of friction, and hardness. The optimal power and mixing time for sonication in this study was determined and composites with 0.5% CNTs w/w concentration were conformed. It was evidenced that the mixing process influence the mechanical and wear performance of UHMWPE / MWCNTs composites and ultrasonication was identified as an effective mixing method that improves significantly the wear performance of the composite.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.739.81