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Study on the efficiency of some amine derivatives as corrosion and scale inhibitors in cooling water systems

机译：某些胺衍生物在冷却水系统中作为缓蚀剂和阻垢剂的效率研究

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Corrosion and scaling are the main problems in cooling water systems. To address these problems, this paper aimed to study the inhibition efficiency of some amine derivatives for carbon steel in sea water using electrochemical techniques such as potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The selected compounds, with different structures and sizes, were found to be adsorbed onto the carbon steel surface and had good performance as corrosion and scale inhibitors. Potentiodynamic polarization studies indicate that the amine derivatives act as mixed type corrosion inhibitors, while the data obtained from EIS revealed that the value of the charge transfer resistance (R-t) increased when increasing the inhibitor concentration leading to an increase in the inhibition efficiency. Also, the obtained results from this study show that the selected amines can decrease scale build-up growth under the experimental conditions. The surface morphology of the carbon steel was investigated in the absence and presence of the selected inhibitors through scanning electron microscopy (SEM) and energy dispersive analysis of X-rays.
机译：腐蚀和结垢是冷却水系统中的主要问题。为了解决这些问题，本文旨在利用电位动力学极化和电化学阻抗谱（EIS）等电化学技术研究某些胺衍生物对海水中碳钢的抑制效率。发现具有不同结构和尺寸的所选化合物被吸附到碳钢表面上，并具有良好的腐蚀和防垢性能。电位动力学极化研究表明，胺衍生物可作为混合型缓蚀剂，而从EIS获得的数据表明，当增加缓蚀剂浓度时，电荷转移阻力（R-t）值增加，从而导致缓蚀效率提高。同样，从这项研究中获得的结果表明，在实验条件下，所选的胺类可以减少水垢的增长。通过扫描电子显微镜（SEM）和X射线能量色散分析研究了在不存在和存在所选抑制剂的情况下碳钢的表面形态。

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