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
Corrosion Inhibition of N, N'-Bis (4-Hydroxy-Benzyl) Ethylenediamine Schiff Base to 5052 Aluminum Alloy in HCl Solution
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1.0 mol/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。
铝合金
缓蚀剂
bis-schiff base
aluminum alloy
corrosion inhibitor
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.
中图分类号 TG174 DOI 10.11973/fsyfh-201712004
所属栏目 试验研究
基金项目
收稿日期 2016/4/1
修改稿日期
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引用该论文: YONG Houhui,YANG Wenzhong. Corrosion Inhibition of N, N'-Bis (4-Hydroxy-Benzyl) Ethylenediamine Schiff Base to 5052 Aluminum Alloy in HCl Solution[J]. Corrosion & Protection, 2017, 38(12): 919
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参考文献
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【8】CHRISTY A G,LOWE A,OTIENO-ALEGO V,et al. Voltammetric and Raman micro-spectroscopic studies on artificial copper pits grown in simulated potable water[J]. Journal of Applied Electrochemistry,2004,34(2):225-233.
【9】曹楚南. 腐蚀电化学原理[M]. 2版. 北京:化学工业出版社,2004.
【10】李红林,蒋晓慧,钟飞. 两种双吡啶盐在盐酸中对A3钢的缓蚀性能[J]. 油田化学,2005,22(1):42-44.
【11】陈言光,董泽华. 含氮杂环双季铵盐在高温酸性溶液中的缓蚀性能[J]. 腐蚀与防护,2007,28(6):282-285.
【12】AYERS R C,HACKERMAN N. Corrosion inhibition in HCl using methyl pyridines[J]. Electrochemical Society Interface,1963,110(6):507-513.
【13】LASHKARI M,ARSHADI M R. DFT studies of pyridine corrosion inhibitors in electrical double layer:solvent,substrate,and electric field effects[J]. Chemical Physics,2004,299(1):131-137.
【14】周晓湘,刘建平. 酸洗缓蚀剂的应用研究现状及发展趋势[J]. 工业水处理,2002,22(1):16-18.
【15】杨守刚. 酸洗缓蚀机理探讨[J]. 发电设备,2002(1):37-39.
【16】王佳,曹楚南,陈家坚,等. 缓蚀剂理论与研究方法的进展[J]. 腐蚀科学与防护技术,1992,4(2):79-86.
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