Abstract The synergistic effect of ZnO and GO nanostructures on the surface modification of mild steel before the acrylic resin coating was studied. Firstly, the steel surface was pretreated in the presence of ultrasonic irradiation, and then ZnO nanostructures were synthesized by the cyclic voltammetry technique. GO nanosheets prepared by the modified hummer’s method were deposited on ZnO-containing surfaces using the electrophoretic deposition (EPD) technique. GO coatings with thicknesses of 2.84, 4.47 and 9.42 μm were obtained by varying the EPD time, and the 4.47 μm was found as the optimum value for the fabrication of hybrid ZnO/GO structures. All samples were then covered with a thin layer of acrylic resin (10 μm) by the spin coating technique. The results indicated that the sample with underneath of hybrid ZnO/GO nanostructures shows significant improvement in anti-corrosion performance. In other words, Rp is increased from 150,000 Ω cm2 (in the rein coated sample) to 380,000 Ω cm2 (in the sample with hybrid nanostructures). The resulting surface has the potential to use as protective and glossy black coatings. The role of underneath nature, surface roughness, and molecular interactions between oxygen functional groups of ZnO, GO, resin, and the metal in the enhanced corrosion protection was illustrated.

中文翻译：

---

在丙烯酸​​树脂涂层前通过混合 ZnO/GO 纳米结构对低碳钢进行表面改性以提高腐蚀保护

摘要 研究了丙烯酸树脂涂层前ZnO和GO纳米结构对低碳钢表面改性的协同作用。首先在超声辐照下对钢表面进行预处理，然后通过循环伏安法合成ZnO纳米结构。使用电泳沉积 (EPD) 技术将通过改良的 hummer 方法制备的 GO 纳米片沉积在含 ZnO 的表面上。通过改变 EPD 时间获得厚度为 2.84、4.47 和 9.42 μm 的 GO 涂层，发现 4.47 μm 是制备混合 ZnO/GO 结构的最佳值。然后通过旋涂技术用丙烯酸树脂薄层（10μm）覆盖所有样品。结果表明，具有混合ZnO / GO纳米结构下方的样品显示出抗腐蚀性能的显着改善。换句话说，Rp 从 150,000 Ω cm2（在树脂涂层样品中）增加到 380,000 Ω cm2（在具有混合纳米结构的样品中）。所得表面有可能用作保护性和有光泽的黑色涂层。说明了底层性质、表面粗糙度以及 ZnO、GO、树脂和金属的氧官能团之间的分子相互作用在增强腐蚀保护中的作用。