V2O5-incorporated polyfuran (PF) as nanofiller(V2O5-PF) was used to synthesize epoxy (EP)-PF/V2O5 nanocomposites. The PF-functionalized V2O5 nanoparticles were characterized by Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The corrosion protection performance of these coatings on mild steel in natural seawater was determined by electrochemical measurements. Results from electrochemical techniques revealed the superior anticorrosive activity of nanocomposite coatings compared to those of plain epoxy coatings. The superior anticorrosive property of the proposed nanocomposite coatings provides a new horizon in the development of high-performance anticorrosive coatings for various industries. Incorporating PF-functionalized V2O5 nanoparticles into the epoxy coating ensued in the blockage of charge transfer at metal–electrolyte interface which hindered the dissolution of metal/alloy. Scanning electrochemical microscopic (SECM) studies detected lower corrosion current on the EP-PF/V2O5 nanocomposite coated mild steel surface. SEM/EDX analysis examined the corrosion products which acted as the passive layer that reduced the dissolution of steel. The inclusion of PF-functionalized V2O5 nanoparticles to EP improved the mechanical properties of the coated surface which complimented the electrochemical studies.

中文翻译：

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五氧化二钒包埋聚呋喃/环氧树脂涂层在低碳钢上的高保护性能

掺入 V2O5 的聚呋喃 (PF) 作为纳米填料 (V2O5-PF) 用于合成环氧树脂 (EP)-PF/V2O5 纳米复合材料。通过傅里叶变换红外光谱 (FT-IR)、X 射线衍射 (XRD)、扫描电子显微镜 (SEM) 和热重分析 (TGA) 对 PF 功能化的 V2O5 纳米粒子进行了表征。这些涂层在天然海水中对低碳钢的腐蚀保护性能是通过电化学测量确定的。电化学技术的结果表明，与普通环氧树脂涂层相比，纳米复合涂层具有优异的防腐活性。所提出的纳米复合涂层的优异防腐性能为各行各业的高性能防腐涂层的开发提供了新的视野。将 PF 功能化的 V2O5 纳米粒子掺入环氧树脂涂层中，会阻碍金属-电解质界面的电荷转移，从而阻碍金属/合金的溶解。扫描电化学显微 (SECM) 研究检测到 EP-PF/V2O5 纳米复合材料涂层低碳钢表面的腐蚀电流较低。SEM/EDX 分析检查了腐蚀产物，它充当减少钢溶解的钝化层。将 PF 功能化的 V2O5 纳米颗粒加入到 EP 中改善了涂层表面的机械性能，这对电化学研究起到了补充作用。扫描电化学显微 (SECM) 研究检测到 EP-PF/V2O5 纳米复合材料涂层低碳钢表面的腐蚀电流较低。SEM/EDX 分析检查了腐蚀产物，它充当减少钢溶解的钝化层。将 PF 功能化的 V2O5 纳米颗粒加入到 EP 中改善了涂层表面的机械性能，这对电化学研究起到了补充作用。扫描电化学显微 (SECM) 研究检测到 EP-PF/V2O5 纳米复合材料涂层低碳钢表面的腐蚀电流较低。SEM/EDX 分析检查了腐蚀产物，它充当减少钢溶解的钝化层。将 PF 功能化的 V2O5 纳米颗粒加入到 EP 中改善了涂层表面的机械性能，这对电化学研究起到了补充作用。