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首页> 外文期刊>New Journal of Chemistry >Fabrication and characterization of a Fe3O4/polyvinylpyrrolidone (Fe3O4/PVP) nanocomposite as a coating for carbon steel in saline media
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Fabrication and characterization of a Fe3O4/polyvinylpyrrolidone (Fe3O4/PVP) nanocomposite as a coating for carbon steel in saline media

机译：Fe3O4 /聚乙烯基吡咯烷酮（Fe3O4 / PVP）纳米复合物作为盐水碳钢涂层的Fe3O4 /聚偏吡咯烷酮（Fe3O4 / PVP）纳米复合材料的制备及表征

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Corrosion of carbon steel (CS) is a security and financial concern for numerous industries involving oil, petroleum, and automotive industries. The outstanding mechanical properties and comparatively low price of CS have made it one of the most commonly used materials in many industries. Nevertheless, CS is very vulnerable to corrosion through many applications and media where the iron content of the alloy suffers from oxidation in saline or acidic media. Protection of these alloys against corrosion is an essential strategy to reduce damage and costs of industrial operations. Corrosion protection by polyvinylpyrrolidone (PVP) coating composed of several magnetite (Fe3O4) nanoparticle contents was investigated in this research. Primarily, a Fe3O4/PVP nanocomposite was prepared and then it was examined by multiple characterization techniques such as FT-IR, XRD, and SEM. CS samples were coated by using the as-prepared nanocomposite through an immersion method. The coating function was evaluated by several electrochemical methods such as electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization, in NaCl 3.5% media. Electrochemical tests results showed that the nanocomposite coating decreased the corrosion current density from 10.56 mu A to less than 0.42 mu A. Electrochemical impedance spectroscopy data analysis revealed that the charge transfer resistance for the corrosion reaction was increased from 94 omega for the bare sample up to 159 omega for the coated sample. The inhibition efficiency of the Fe3O4/PVP nanocomposite was found to beca.96%. Therefore, the Fe3O4/PVP nanocomposite coating can be used as an efficient corrosion protection method for CS.
机译：碳钢（CS）的腐蚀是涉及石油，石油和汽车工业的众多行业的安全和财务问题。 CS的突出机械性能和相对低廉的价格使其成为许多行业中最常用的材料之一。然而，CS非常容易受到许多应用和介质的腐蚀，其中合金的铁含量患有盐水或酸性介质的氧化。保护这些合金对抗腐蚀是减少工业行动损害和成本的基本策略。在本研究中研究了由多磁铁矿（Fe3O4）纳米粒子含量组成的聚乙烯吡咯烷酮（PVP）涂层的腐蚀保护。主要是，制备Fe 3 O 4 / PVP纳米复合材料，然后通过多种表征技术（如FT-IR，XRD和SEM）检查。通过使用浸渍法使用用AS制备的纳米复合材料涂覆CS样品。通过几种电化学方法如电化学阻抗谱（EIS）和电位动力学偏振，在NaCl 3.5％培养基中评价涂布功能。电化学试验结果表明，纳米复合涂层从10.56亩a降低到小于0.42μm的腐蚀电流密度。电化学阻抗光谱数据分析显示，腐蚀反应的电荷转移阻力从94欧米加增加到裸样本159欧米茄用于涂层样品。发现Fe3O4 / PVP纳米复合材料的抑制效率为296％。因此，Fe3O4 / PVP纳米复合涂层可用作CS的有效腐蚀保护方法。

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