Corrosion Performance and Rust Conversion Mechanism of Graphene Modified Epoxy Surface Tolerant Coating

Xiaoping Guo; Xiaoping Guo; Hao Xu; Jibin Pu; Chao Yao; Jing Yang; Shuan Liu

doi:10.3389/fmats.2021.767776

Frontiers in Materials (Nov 2021)

Corrosion Performance and Rust Conversion Mechanism of Graphene Modified Epoxy Surface Tolerant Coating

Xiaoping Guo,
Xiaoping Guo,
Hao Xu,
Jibin Pu,
Chao Yao,
Jing Yang,
Shuan Liu

Affiliations

Xiaoping Guo: School of Petrochemical Engineering, Changzhou University, Changzhou, China
Xiaoping Guo: Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
Hao Xu: Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
Jibin Pu: Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
Chao Yao: School of Petrochemical Engineering, Changzhou University, Changzhou, China
Jing Yang: Hubei Huaqiang Technology Co., Ltd., Yichang, China
Shuan Liu: Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China

DOI: https://doi.org/10.3389/fmats.2021.767776
Journal volume & issue: Vol. 8

Abstract

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A graphene modified epoxy surface tolerant coating was prepared, and the corrosion performance and rust conversion mechanism of the prepared composite coating on rusty carbon steel substrate was investigated. Scanning electron microscope (SEM), X-ray powder diffractometer (XRD), and infrared (IR) spectrum were used to confirmed the iron rust conversion performance by the reaction of phytic acid and rust. electrochemical impedance spectroscopy (EIS), polarization curve, and salt spray test were used to evaluate the corrosion resistance of low surface treatment coatings. Results indicated most of the rust were dissolved and transformed with the reaction of phytic acid and rust on the rusty carbon steel; graphene could effectively improve the compactness and protective performance of the epoxy surface tolerant coating.

Published in Frontiers in Materials

ISSN: 2296-8016 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Technology
Website: https://www.frontiersin.org/journals/materials

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