Experimental investigation on the tribo-mechanical behavior of PMMA reinforced by solid lubricant filler for dental implant applications

This study investigates the enhancement of mechanical and tribological behavior in polymethyl methacrylate (PMMA) composites reinforced with graphene oxide (GO) as a solid lubricant filler for advanced biomedical applications, particularly dental implants. PMMA/GO composites were prepared with varyi...

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Bibliographic Details
Published in:AIP advances 2024-09, Vol.14 (9)
Main Authors: Abdo, Mohamed S., Shar, Muhammad A., Fouly, Ahmed, Dar, Mushtaq A., Abdo, Hany S.
Format: Article
Language:English
Subjects:
Biomedical materials
Coefficient of friction
Composite materials
Dental implants
Dental materials
Fillers
Fractions
Graphene
Mechanical properties
Microstructural analysis
Modulus of elasticity
Polymethyl methacrylate
Solid lubricants
Surgical implants
Tensile strength
Tribology
Wear mechanisms
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Summary:This study investigates the enhancement of mechanical and tribological behavior in polymethyl methacrylate (PMMA) composites reinforced with graphene oxide (GO) as a solid lubricant filler for advanced biomedical applications, particularly dental implants. PMMA/GO composites were prepared with varying weight percentages of GO (0, 0.2, 0.5, 0.7, and 1 wt. %) to assess their impact on material performance. A noteworthy improvement in both tensile strength and Young’s modulus was detected, reaching up to 141% and 10.6%, respectively, at optimized GO loadings of 1%. Microstructural analysis utilizing scanning electron microscopy for the worn surface revealed enhanced dispersion and interfacial adhesion between GO and the PMMA matrix, reinforcing mechanical coherence. Tribological properties also demonstrated enhancement, with PMMA composites containing 1 wt. % GO exhibiting optimal mechanical and tribological characteristics compared to lower weight fractions. Moreover, microscopic examination revealed a shift in the wear mechanism of the PMMA-GO composite, which was attributed to the lower friction coefficient obtained by GO integration.
ISSN:2158-3226
2158-3226
DOI:10.1063/5.0225107