通过剥离石墨的尺寸限制制备多功能石墨纳米片-亲水性环氧防腐涂层

Multifunctional Graphite Nanosheet-Hydrophilic Epoxy Anticorrosion Coatings via Size Confinement of Exfoliated Graphite.

作者信息

Ma Huachao, Zhang Xuyang, Zhang Dongxing, Peng Yizhan, Wan Detian, Peng Tai, Lv Kuilin

机构信息

College of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China.

China Testing & Certification International Group Co., Ltd., Room, Beijing 100024, China.

出版信息

Polymers (Basel). 2025 Jun 28;17(13):1803. doi: 10.3390/polym17131803.

DOI:10.3390/polym17131803

PMID:40647813

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12252152/

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 × 10 Ω cm, 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.

摘要

为了评估石墨纳米片尺寸如何影响亲水性涂层的性能，将各种尺寸的石墨纳米片添加到莫来石/高岭土环氧（EP）涂层中。实验结果表明，富含石墨纳米片（1.01±0.1μm）的莫来石/高岭土EP涂层表现出最高阻抗值9.18×10Ω·cm，在盐雾暴露2880小时后展现出最佳性能。这意味着具有出色的耐磨性。尺寸合适的石墨纳米片可以形成覆盖微孔的优异纳米网络，既不能阻止腐蚀性介质的扩散，又能为涂层提供优异的机械性能。本研究结果为石墨防腐涂层的工业应用提供了参考。