4.7 Article

Tribological properties of graphene oxide reinforced PPTA/PTFE composites

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DOI: 10.1016/j.jmrt.2023.02.032

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PTFE; Graphene oxide; PPTA; Dual-size synthesis; Wear mechanism

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The tribological properties of self-lubricating polymer were improved by enhancing the properties of the transfer film through the use of graphene oxide (GO) reinforced polytetrafluoroethylene (PTFE)/poly-p-phenylene terephthamide (PPTA) composites (GPPs) prepared by dual-size synthesis. The tribological properties of GPPs were investigated using a ball-on-disk tribometer, revealing low friction coefficient (minimum = 0.061) and high hydrophobicity (maximum = 137.1385 degrees). The study elucidated the structure-property relationships and practical effect of transfer film enhancement induced by GO, aiming to provide guidance for the design of GO reinforced self-lubricating polymers.
The tribological properties of the self-lubricating polymer were improved by strengthening the properties of the transfer film. The graphene oxide (GO) reinforced polytetrafluoro-ethylene (PTFE)/poly-p-phenylene terephthamide (PPTA) composites (GPPs) were prepared by dual-size synthesis. The tribological properties of GPPs were studied on a ball-on-disk tribometer. GPPs have low friction coefficient (minimum = 0.061) and hydrophobicity (maximum = 137.1385 degrees). The structure-property relationships and the practical effect of transfer film enhancement induced by GO were revealed. We attempt to provide guidance for the GO reinforced self -lubricating polymers design. Finally, in light of the excellent properties of GPPs, this study provides guidance for the GO reinforced self -lubricating polymers design.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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