Effect of Reduced Graphene Oxide on Corrosion Resistance of Waterborne Inorganic Zinc-rich Coatings

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  • School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China

Online published: 2023-07-01

Abstract

In order to improve the anticorrosion performance of waterborne inorganic zinc-rich coatings,silicate waterborne inorganic zinc-rich coatings were prepared by using highmodulus potassium silicate solution and fluorocarbon emulsion as film-forming materials,flake zinc powder as main functional filler and appropriate amount of reduced graphene oxidedispersion as auxiliary filler. Physical properties test,electrochemical test,salt spray test andother test methods were used to explore the influence of different addition amounts of reducedgraphene oxide on the corrosion resistance of the coating. The results showed that the additionof appropriate amount of reduced graphene oxide could enhance the corrosion resistance ofwaterborne inorganic zinc-rich coatings. When the amount of reduced graphene oxide dispersion in the coating reaches 6%,the mechanical properties and corrosion resistance of thecoating were the best. The main corrosion products of the coating after corrosion were Zn5(OH)8Cl2and ZnO.

Cite this article

JIANG Y, JIANG H Y, XIONG S P . Effect of Reduced Graphene Oxide on Corrosion Resistance of Waterborne Inorganic Zinc-rich Coatings[J]. Paint & Coatings Industry, 2023 , 53(7) : 68 -72 . DOI: 10.12020/j.issn.0253-4312.2022-368

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