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Multifunctional Graphite Nanosheet-Hydrophilic Epoxy Anticorrosion Coatings via Size Confinement of Exfoliated
Huachao Ma1,2, Xuyang Zhang2,3, Dongxing Zhang2
1College of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China.
Abstract:
To assess how the graphite nanosheet size affects the performance of hydrophilic coatings, graphite nanosheets of various sizes were added to a mullite/kaolin epoxy (EP) coating. The experimental results indicated that the mullite/kaolin EP coating enriched with graphite nanosheets (1.01 ± 0.1 μm) exhibited the highest impedance value of 9.18 × 107 Ω cm2, demonstrating the best performance after 2880 h of exposure to salt spray. This implies exceptional wear resistance. Appropriately sized graphite nanosheets can create excellent nanonetworks that cover micropores, which cannot prevent the diffusion of corrosive media and provide excellent mechanical properties to coatings. The results of this study serve as a reference for the industrial application of graphite anticorrosive coatings.
