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FDM preparation of bio-compatible UHMWPE polymer for artificial implant

Ramli, M. S. and Wahab, M. S. and Ahmad, M. and Bala, A. S. (2016) FDM preparation of bio-compatible UHMWPE polymer for artificial implant. ARPN Journal of Engineering and Applied Sciences, 11 (8). pp. 5474-5480. ISSN 18196608

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Abstract

Due to its properties of high wear, creep resistance, high stiffness and strength, Ultra-High Molecular Weight Polyethylene (UHMWPE) was developed to eliminate most metallic wear in artificial implant, which conventionally found in stainless steel, Cobalt Chromium (Co-Cr) and Titanium (Ti) alloys. UHMWPE has an ultra-high viscosity that renders continuous melt-state processes including one of the additive manufacturing processes, Fused Deposition Modeling (FDM) ineffective for making UHMWPE implant. Attempt to overcome this problem and adapting this material to FDM is by blending UHMWPE with other polyethylene including High Density Polyethylene (HDPE) and Polyethylene-Glycol (PEG) which provide adequate mechanical properties for biomedical application along with the improvement in extrudability. It was demonstrated that the inclusion of 60% HDPE fraction has improved the flowability of UHMWPE in MFI test and showing adequate thermal stability in TGA.

Item Type: Article
Uncontrolled Keywords: Additive manufacturing; fused deposition modelling; ultra-high molecular weight polyethylene high-density polyethylene; artificial implant
Subjects: T Technology > TP Chemical technology > TP1080-1185 Polymers and polymer manufacture
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Manufacturing and Industrial Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 18 Feb 2019 06:55
Last Modified: 18 Feb 2019 06:55
URI: http://eprints.uthm.edu.my/id/eprint/10651
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