Constructing non-covalently assembled g-C3N4@GO nanofillers to enhance the anti-corrosion performance of waterborne epoxy coatings

作者：Tao He, Qingxi Yuan, Hongjie Li, Yi He, Zhijun Li, Changhua Li, Yuanhua Lin · 发表于：International Journal of Electrochemical Science · 年份：2024 · DOI：10.1016/j.ijoes.2024.100476 · 被引用次数：12 · 研究领域：Corrosion Behavior and Inhibition、High voltage insulation and dielectric phenomena、ZnO doping and properties

Herein, a novel graphitic carbon nitride@graphene oxide (g-C3N4@GO) composite nanofiller is fabricated based on π–π conjugation between carbon nitride and graphene oxide, and is applied to enhance the anti-corrosion behaviour of waterborne epoxy paints. The prepared hybrid filler is compounded with water-based epoxy resin by mechanical blending, and the composite is prepared using high-pressure spraying. The fabricated coating is evaluated for its anti-corrosion performance via electrochemical impedance spectroscopy and neutral salt spray tests. These tests demonstrate that the g-C3N4@GO composite coating exhibits excellent corrosion resistance.