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首页> 美国卫生研究院文献>Molecules >Preparation and Application of Crosslinked Poly(sodium acrylate)-Coated Magnetite Nanoparticles as Corrosion Inhibitors for Carbon Steel Alloy
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Preparation and Application of Crosslinked Poly(sodium acrylate)-Coated Magnetite Nanoparticles as Corrosion Inhibitors for Carbon Steel Alloy

机译：交联聚丙烯酸钠包覆磁铁矿纳米粒子的制备及其在碳钢合金缓蚀剂中的应用

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摘要

This work presents a new method to prepare poly(sodium acrylate) magnetite composite nanoparticles. Core/shell type magnetite nanocomposites were synthesized using sodium acrylate as monomer and N,N-methylenebisacrylamide (MBA) as crosslinker. Microemulsion polymerization was used for constructing core/shell structures with magnetite nanoparticles as core and poly(sodium acrylate) as shell. Fourier transform infrared spectroscopy (FTIR) was employed to characterize the nanocomposite chemical structure. Transmittance electron microscopy (TEM) was used to examine the morphology of the modified poly(sodium acrylate) magnetite composite nanoparticles. These particle will be evaluated for effective anticorrosion behavior as a hydrophobic surface on stainless steel. The composite nanoparticles has been designed by dispersing nanocomposites which act as a corrosion inhibitor. The inhibition effect of AA-Na/magnetite composites on steel corrosion in 1 M HCl solution was investigated using potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS). Polarization measurements indicated that the studied inhibitor acts as mixed type corrosion inhibitor. EIS spectra exhibit one capacitive loop. The different techniques confirmed that the inhibition efficiency reaches 99% at 50 ppm concentration. This study has led to a better understanding of active anticorrosive magnetite nanoparticles with embedded nanocomposites and the factors influencing their anticorrosion performance.
机译：这项工作提出了一种新的制备聚（丙烯酸钠）磁铁矿复合纳米粒子的方法。以丙烯酸钠为单体，N，N-亚甲基双丙烯酰胺（MBA）为交联剂，合成核/壳型磁铁矿纳米复合材料。微乳液聚合用于构造以磁铁矿纳米颗粒为核，聚丙烯酸钠为壳的核/壳结构。傅里叶变换红外光谱（FTIR）被用来表征纳米复合化学结构。透射电子显微镜（TEM）用于检查改性聚（丙烯酸钠）磁铁矿复合纳米颗粒的形貌。将评估这些颗粒在不锈钢上作为疏水表面的有效防腐性能。通过分散充当腐蚀抑制剂的纳米复合材料来设计复合纳米颗粒。利用电位动力学极化曲线和电化学阻抗谱（EIS）研究了AA-Na /磁铁矿复合材料对1 M HCl溶液中钢腐蚀的抑制作用。极化测量表明，所研究的抑制剂起混合型腐蚀抑制剂的作用。 EIS光谱显示出一个电容性环路。不同的技术证实了在50 ppm浓度下抑制效率达到99％。这项研究使人们对具有嵌入的纳米复合材料的活性防腐蚀磁铁矿纳米颗粒以及影响其防腐蚀性能的因素有了更好的了解。

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