规则排列的还原氧化石墨烯对水性硅酸盐富锌涂料防腐性能的影响

IF 1.5 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Engineering, Science and Technology Pub Date : 2022-11-04 DOI:10.1080/1478422X.2022.2140248

Xu Zhao, Y. Qi, Z. Zhang, Mengxin Li

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引用次数: 0

摘要

摘要:研究了由还原氧化石墨烯(rGO)组成的具有边缘吸附K+ (rGOK+)的屏障层对防腐性能的影响。采用扫描电子显微镜(SEM)、x射线光电子能谱(XPS)、直流极化技术和电化学阻抗谱(EIS)对腐蚀产物、腐蚀机理和过程进行了研究。XPS结果表明，腐蚀产物为ZnCl2、Zn(OH)2、ZnCO3和Zn5(OH)8Cl2。SEM、能谱仪(EDS)、极化曲线和EIS表明，rGOK+含量最高的涂层不仅建立了阻挡层，而且提高了锌粉的利用率，从而在锌粉用量减少30%的情况下为基体提供了更好的防腐保护。

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Effect of regularly arranged reduced graphene oxide on the anti-corrosion performance of waterborne silicate zinc-rich coatings

ABSTRACT The effect of a barrier layer composed of reduced graphene oxide (rGO) with edge adsorption of K+ (rGOK+) on anticorrosive performance was investigated. Scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), DC polarisation technique and electrochemical impedance spectroscopy (EIS) were used to investigate the morphology, corrosion product, corrosion mechanism and process. XPS results show that the corrosion products are ZnCl2, Zn(OH)2, ZnCO3 and Zn5(OH)8Cl2. SEM, energy-dispersive spectrometer (EDS), polarisation curve and EIS show that the coating with the most rGOK+ not only builds a barrier layer but also improves the utilisation of zinc powder, thereby providing better corrosion protection for the substrate despite the 30% reduction in zinc powder usage.

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来源期刊

Corrosion Engineering, Science and Technology 工程技术-材料科学：综合

CiteScore

3.20

自引率

5.60%

发文量

审稿时长

3.4 months

期刊介绍： Corrosion Engineering, Science and Technology provides broad international coverage of research and practice in corrosion processes and corrosion control. Peer-reviewed contributions address all aspects of corrosion engineering and corrosion science; there is strong emphasis on effective design and materials selection to combat corrosion and the journal carries failure case studies to further knowledge in these areas.