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首页> 外文期刊>Journal of Materials Engineering and Performance >Inhibition of Brass Corrosion by 2-Mercapto-1-methylimidazole in Weakly Alkaline Solution
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Inhibition of Brass Corrosion by 2-Mercapto-1-methylimidazole in Weakly Alkaline Solution

机译：弱碱溶液中2-巯基-1-甲基咪唑对黄铜腐蚀的抑制作用

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摘要

The electrochemical behavior of brass and anticorrosion effect of 2-mercapto-1-methylimidazole (2-MMI) in weakly alkaline solution with and without presence of chloride ions was investigated using electrochemical techniques in addition to SEM-EDS analysis. Results show that inhibition efficiency depended on inhibitor concentration and immersion time of brass electrode in inhibitor solution. Inhibition mechanism of 2-mercapto-1-methylimidazole includes adsorption of inhibitor on active sites on electrode surface which was confirmed by SEM-EDS analysis of the brass. Adsorption of the 2-MMI in sodium tetraborate solution obeys Flory-Huggins adsorption isotherm, while in the presence of chloride, ions adsorption of inhibitor obeys Langmuir adsorption isotherm.
机译：除了SEM-EDS分析之外，还使用电化学技术研究了黄铜的电化学行为和2-巯基-1-甲基咪唑（2-MMI）在弱碱性溶液中（有无氯离子）的腐蚀作用。结果表明，抑制效率取决于抑制剂浓度和黄铜电极在抑制剂溶液中的浸没时间。 2-巯基-1-甲基咪唑的抑制机理包括抑制剂在电极表面活性部位上的吸附，这通过黄铜的SEM-EDS分析得到证实。在四硼酸钠溶液中吸附2-MMI符合Flory-Huggins吸附等温线，而在存在氯离子时，抑制剂的离子吸附符合Langmuir吸附等温线。

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