肉桂酸咪唑啉化合物对N80钢在盐酸介质中缓蚀性能的研究
发布时间：2018-08-12 16:17
【摘要】：目的研究肉桂酸咪唑啉缓蚀剂在酸性介质中对N80钢的缓蚀性能。方法以肉桂酸和羟乙基乙二胺为原料,氧化铝为催化剂,采用溶剂法合成了肉桂酸咪唑啉化合物,利用紫外光谱和红外光谱等分析了产物的分子结构,利用静态失重法、动电位极化和交流阻抗等方法研究了咪唑啉缓蚀剂在盐酸介质中对N80钢的缓蚀性能,并对其缓蚀机理进行了初步探讨。结果静态失重法结果表明,缓蚀效率与缓蚀剂的质量浓度有关,当产物的质量浓度达到400 mg/L时,缓蚀效率趋于平稳,可达86.9%。腐蚀速率随着温度的增加而增加,温度在30~50℃时,咪唑啉具有良好的缓蚀效率。极化曲线研究结果表明,该缓蚀剂是控制阳极反应为主的混合型缓蚀剂,作用类型是几何覆盖效应。交流阻抗研究结果表明,该缓蚀剂对碳钢在盐酸介质中的腐蚀有明显的抑制作用,缓蚀效率随着缓蚀剂的质量浓度的增大而增大。结论肉桂酸咪唑啉是一种有效的缓蚀剂,能够明显抑制N80钢在盐酸介质中的腐蚀。
[Abstract]:Objective to study the corrosion inhibition properties of imidazoline cinnamate corrosion inhibitor on N80 steel in acid medium. Methods Imidazoline cinnamate was synthesized with cinnamic acid and hydroxyethyl ethylenediamine as raw materials and alumina as catalyst. The molecular structure of Imidazoline cinnamate was analyzed by UV and IR spectra. The inhibition properties of Imidazoline corrosion inhibitor on N80 steel in hydrochloric acid medium were studied by potentiodynamic polarization and AC impedance. The corrosion inhibition mechanism of Imidazoline corrosion inhibitor on N80 steel was preliminarily discussed. Results the static weightlessness method showed that the inhibition efficiency was related to the mass concentration of the inhibitor. When the mass concentration of the product reached 400 mg/L, the inhibition efficiency tended to be stable, reaching 86.9%. The corrosion rate increases with the increase of temperature. Imidazoline has a good corrosion inhibition efficiency at 30 ~ 50 鈩，
本文编号：2179591
[Abstract]:Objective to study the corrosion inhibition properties of imidazoline cinnamate corrosion inhibitor on N80 steel in acid medium. Methods Imidazoline cinnamate was synthesized with cinnamic acid and hydroxyethyl ethylenediamine as raw materials and alumina as catalyst. The molecular structure of Imidazoline cinnamate was analyzed by UV and IR spectra. The inhibition properties of Imidazoline corrosion inhibitor on N80 steel in hydrochloric acid medium were studied by potentiodynamic polarization and AC impedance. The corrosion inhibition mechanism of Imidazoline corrosion inhibitor on N80 steel was preliminarily discussed. Results the static weightlessness method showed that the inhibition efficiency was related to the mass concentration of the inhibitor. When the mass concentration of the product reached 400 mg/L, the inhibition efficiency tended to be stable, reaching 86.9%. The corrosion rate increases with the increase of temperature. Imidazoline has a good corrosion inhibition efficiency at 30 ~ 50 鈩，
本文编号：2179591
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