N,N′-二(4-羟基苄叉)乙二胺双希夫碱在HCl溶液中对5052铝合金的缓蚀作用 |
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引用本文: | 雍厚辉,杨文忠. N,N′-二(4-羟基苄叉)乙二胺双希夫碱在HCl溶液中对5052铝合金的缓蚀作用[J]. 腐蚀与防护, 2017, 0(12): 919-923. DOI: 10.11973/fsyfh-201712004 |
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作者姓名: | 雍厚辉 杨文忠 |
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摘 要: | 以合成的N,N′-二(4-羟基苄叉)乙二胺双希夫碱作为缓蚀剂,通过失重法、动电位极化曲线、电化学阻抗谱评定了该缓蚀剂在HCl溶液中对5052铝合金的缓蚀作用。结果表明:该缓蚀剂在1.0mol/L HCl溶液中对5052铝合金具有很好的缓蚀效果,且缓蚀率随着缓蚀剂含量的增加而增大;N,N′-二(4-羟基苄叉)乙二胺双希夫碱缓蚀剂在5052铝合金表面的吸附属于物理和化学的混合吸附,并遵循Langmuir吸附等温式。
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Corrosion Inhibition of N,N'-Bis (4-Hydroxy-Benzyl) Ethylenediamine Schiff Base to 5052 Aluminum Alloy in HCl Solution |
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Abstract: | The corrosion inhibition of synthetic N,N'-bis (4-hydroxy benzyl) ethylenediamine Schiff base as corrosion inhibitor to 5052 aluminum alloy in HCl solution was studied by weight-loss method,potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS).The results show that the corrosion inhibitor had good inhibition effect to 5052 aluminum alloy in 1.0 mol/L HCl solution,and the inhibition efficiency increased with the increase of inhibitor concentration.The adsorption of N,N'-bis (4-hydroxy-benzyl) ethylenediamine Schiff base corrosion inhibitor on the surface of 5052 aluminum alloy was a combination of physical adsorption and chemical adsorption and in line with the Langmuir adsorption isotherm. |
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