İndirgenmiş Grafen Oksit Katkılı UHMWPE Kompozitin Kuru ve Sulu Ortamlarda Aşınma Davranışlarının Karşılaştırılması

Çolak, Alime; Mindivan, Ferda; Göktaş, Meryem

doi:10.17100/nevbiltek.633270

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…The lubricating effect of both distilled water and RGOC decreased friction coefficient. Graphene is considered to be an important solid lubricant in improving the tribological properties of polymer composites 36 . The wear rate of the UHMWPE/RGOC‐2 biocomposite decreased by 44%, compared with that of unfilled UHMWPE.…”

Section: Resultsmentioning

confidence: 99%

Tribo‐material based on a UHMWPE/RGOC biocomposite for using in artificial joints

Mindivan

Çolak

2021

J of Applied Polymer Sci

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Reduced graphene oxide (RGOC) filler that was green synthesized by vitamin C had been included in the ultrahigh molecular weight polyethylene (UHMWPE) matrix to produce biocomposite possessing improved properties especially against wear. The biocomposites filled with different loading (0.1, 0.3, 1.0, and 2.0 wt%) of RGOC was produced by a method of liquid phase ultrasonic mixing and then hot press molding. The structural analysis results of biocomposites showed that RGOC well‐dispersed in polymer matrix and confirmed that there was interaction between the RGOC‐UHMWPE. The biocomposite containing 2.0 wt% RGOC (UHMWPE/RGOC‐2) gave the maximum microhardness and the value increased by 22. 5% compared with unfilled polymer. At the same RGOC content, the biocomposite had the highest thermal stability with residue content at 2.42%. The wear and friction behavior of biocomposites were carried out in a reciprocating friction testing machine under distilled water lubricating conditions. The UHMWPE/RGOC‐2 biocomposite had the lowest friction coefficient value (0.034) and the wear rate of the biocomposite decreased by 44%, compared with that of unfilled UHMWPE. Furthermore, fatigue wear tracks were significantly reduced. This study suggests the use of this composite that had excellent tribological behavior as biomaterial instead of UHMWPE.

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Section: Resultsmentioning

confidence: 99%