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Experimental and simulation investigation on hydrophobicity and corrosion resistance of graphene oxide reinforced composite coating

Chen, L; Ni, X; Shen, Y; Liu, Z; Liu, C; (2024) Experimental and simulation investigation on hydrophobicity and corrosion resistance of graphene oxide reinforced composite coating. Applied Surface Science , 648 , Article 159072. 10.1016/j.apsusc.2023.159072. Green open access

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Abstract

The graphene oxide (GO) was introduced to epoxy resin (EP) to prepare the GO/PVB/EP composite coating. The hydrophobicity and anti-corrosion performance of the composite coating were investigated experimentally through contact angle and electrochemical experiments. The experimental data showed that the contact angle was 60.43°, and the corrosion resistance rate of the PVB/EP coating reached 84.03%. After adding 0.89 wt% GO, the corrosion resistance rate of the composite coating reached 92.57%, which was 8.54% higher than that of the PVB/EP coating, and the contact angle reached 114.66°. Furthermore, the constructed GO/PVB/EP coating molecular dynamics model was proposed, and the performance of the GO for water drainage and antiseptic were analyzed. Due to the blockage of the GO monolayer, the effective water molecule penetration surface area in the GO/PVB/EP layer is smaller than that in the PVB/EP layer. As the contact angle of the GO/PVB-EP layer meets the small contact angle of the PVB/EP coating, the GO/PLB/EP coating has high corrosion resistance due to the PVB/EP coating.

Type: Article
Title: Experimental and simulation investigation on hydrophobicity and corrosion resistance of graphene oxide reinforced composite coating
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.apsusc.2023.159072
Publisher version: http://dx.doi.org/10.1016/j.apsusc.2023.159072
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Graphene oxide, Molecular dynamics, Corrosion protection, Hydrophobicity
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci > Department of Ortho and MSK Science
URI: https://discovery.ucl.ac.uk/id/eprint/10184403
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