ORIGINAL RESEARCH article
Front. Chem.
Sec. Polymer Chemistry
Volume 13 - 2025 | doi: 10.3389/fchem.2025.1544762
This article is part of the Research TopicProgress in Functional CoatingsView all 3 articles
Incorporating Graphene-Modified Mica and Conductive Nickel Particles for Enhanced Corrosion Resistance in Epoxy Zinc-Rich Coatings
Provisionally accepted
- 1Tianjin University, Tianjin, China
- 2Guangdong University of Technology, Guangzhou, Guangdong Province, China
- 3The University of Nottingham Ningbo (China), Ningbo, Zhejiang Province, China
- 4Western University, London, Ontario, Canada
- 5Datang North China Electric Power Test and Research Institute, Beijing, China
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Epoxy zinc-rich coatings usually require high zinc content to ensure its anti-corrosion performance. However, excessive zinc powder content will reduce the mechanical properties of the coating, increase the economic cost, harm the environment, etc. Therefore, this paper aims to reduce the amount of zinc powder and improve the corrosion performance of epoxy zinc-rich coatings by introducing two kinds of conductive particle materials, conductive graphene-mica powder and conductive nickel.Conductive graphene was first loaded on mica powder and the obtained conductive graphene-mica powder and the conductive nickel were introduced to the epoxy zincrich coatings to partially replace zinc component. The anti-corrosion properties of the coating were systematically evaluated by EIS and salt spray test. The resulting epoxy zinc-rich coating with nickel powder or conductive graphene-mica demonstrates outstanding salt spray resistance, lasting up to 2000 hours, exhibiting superior anticorrosion performance at reduced zinc content of 60% or 45% compared to conventional coatings with 70% pure zinc powder. This study introduces a novel conductive mica material and investigates conductive metal nickel additive, effectively reducing zinc content in epoxy zinc-rich coatings, which offers valuable insights for developing high-performance anti-corrosion coatings.
Keywords: Epoxy zinc-rich coatings, Anti-corrosion coatings, Conductive nickel, Graphene, Conductive mica
Received: 13 Dec 2024; Accepted: 22 Apr 2025.
Copyright: © 2025 Jiang, Zhang, Zhang, Shao, Zhu and Jin. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Haiping Zhang, Tianjin University, Tianjin, China
Hui Zhang, Guangdong University of Technology, Guangzhou, 510006, Guangdong Province, China
Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.