INVESTIGATION ON TRIBOLOGICAL PROPERTIES OF RGO NANOPLATES/EPOXY NANOCOMPOSITES

Document Type : Original Article

Author

1 Mechanical Engineering Department, Faculty of Engineering at Helwan, Helwan University, Helwan 11795

2 Faculty of Industrial and Energy Technology, Borg Al Arab Technological University, Alexandria, EGYPT.

Abstract

Based on graphene oxide, reduced graphene oxide (rGO) is a potential material that may interact with a wide range of other materials due to its large surface area and excellent mechanical strength. This material was, therefore, selected as an epoxy reinforcer in order to create a new epoxy composite with promising properties that can be applied to numerous significant tribological applications. Reduced graphene oxide (rGO) in its nanoform was employed in this study at several weight percentages (0.1, 0.5, 0.7, and 0.9). Promising findings were obtained for wear and friction when the resultant samples were evaluated using a pin-on-disc device. The Vickers scale, which was used to quantify hardness, produced results that were in line with wear findings. The worn surfaces were inspected with a scanning electron microscope. According to the results, rGO improved the compost's mechanical strength and offered superior and lower variable friction values than pure epoxy, which made it suitable for a range of applications.  Furthermore, it helped to increase the compost's hardness, and the concentration of 0.5 by weight of rGO produced the lowest wear value.

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