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首页> 外文期刊>Applied Surface Science >Synergistic Inhibition Effect Of 2-mercaptobenzothiazole And Tween-80 On The Corrosion Of Brass In Nacl Solution
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Synergistic Inhibition Effect Of 2-mercaptobenzothiazole And Tween-80 On The Corrosion Of Brass In Nacl Solution

机译：2-巯基苯并噻唑和Tween-80对黄铜在Nacl溶液中的腐蚀的协同抑制作用

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摘要

The corrosion inhibition of brass in 0.2 M NaCl in the presence of 2-mercaptobenzothiazole (MBT) and polyoxyethylene sorbitan monooleate (Tween-80) has been investigated using potentiodynamic polarization. X-ray photoelectron spectroscopy and inductively coupled plasma analysis. Analysis of the results revealed that the addition of MBT and Tween-80 inhibits the corrosion of brass in 0.2 M NaCl. Potentiodynamic polarization measurements showed that MBT acts as a mixed-type inhibitor and Tween-80 as an anodic inhibitor. Corrosion inhibition occurs through adsorption of the inhibitor on brass surface without modifying the corrosion mechanism. The adsorption of MBT and Tween-80 both follow Langmuir adsorption isotherm. Potentiodynamic polarization results suggested that the mixture of MBT and Tween-80 acts as a mixed-type inhibitor. Inhibition efficiency of 79.0 and 62.5% were obtained in the presence of optimum concentration of MBT and Tween-80, respectively. The addition of the mixture of MBT and Tween-80 enhanced the inhibition efficiency to 94.0% and showed a synergism of inhibition. XPS analysis indicated that MBT adsorbed on brass surface along with Tween-80 in the presence of the mixture of MBT and Tween-80. The results of solution analysis using ICP showed that the mixture of MBT and Tween-80 effectively controlled the dezincification of brass.
机译：使用电位动力学极化法研究了2-巯基苯并噻唑（MBT）和聚氧乙烯脱水山梨糖醇单油酸酯（Tween-80）在0.2 M NaCl中对黄铜的腐蚀抑制作用。 X射线光电子能谱和电感耦合等离子体分析。结果分析表明，添加MBT和Tween-80可以抑制0.2 M NaCl中黄铜的腐蚀。电位动力学极化测量表明，MBT充当混合型抑制剂，Tween-80充当阳极抑制剂。腐蚀抑制是通过抑制剂在黄铜表面的吸附而发生的，而没有改变腐蚀机理。 MBT和Tween-80的吸附均遵循Langmuir吸附等温线。电位动力学极化结果表明，MBT和Tween-80的混合物起着混合型抑制剂的作用。在最佳浓度的MBT和Tween-80存在下，抑制效率分别为79.0和62.5％。 MBT和Tween-80混合物的加入将抑制效率提高到94.0％，并显示出协同抑制作用。 XPS分析表明，在存在MBT和Tween-80的混合物的情况下，MBT与Tween-80一起吸附在黄铜表面。使用ICP进行溶液分析的结果表明，MBT和Tween-80的混合物有效控制了黄铜的脱锌。

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