N-烷基月桂酰胺对硫酸溶液中碳钢的缓蚀行为

中国腐蚀与防护学报

1997, Vol. 17

Issue (1): 68-72

研究报告

本期目录 | 过刊浏览

N-烷基月桂酰胺对硫酸溶液中碳钢的缓蚀行为

曾凌三;梁本熹;张跃龙;唐辉尧

湖南大学化学化工系;长沙410082;湖南大学化学化工系;长沙410082;湖南大学化学化工系;长沙410082;湖南大学化学化工系;长沙410082

INHIBITION BEHAVIOUR OF N-ALKYL LAURYL AMIDE FOR CARBON STEEL IN SULPHURIC ACID SOLUTION

ZENG Lingsan LIANG Benxi ZHANG Yaolong TANG Huiyao (Chemistry & Chemical Engineer Department; Hunan University)

全文: PDF(341 KB)

摘要: 采用电化学和失重法研究N-烷基月桂酰胺(NALA)对硫酸溶液中碳钢腐蚀的缓蚀行为和吸附规律。实验表明,其缓蚀性能优良,主要属以阻滞阳极过程为主的缓蚀剂,吸附过程为放热反应,属化学吸附,在不同吸附阶段分别遵循Temkin和Frumkin吸附等温式。

关键词 ：表面活性剂, 金属缓蚀剂, 月桂酰胺

Abstract：By electrochemical method and weight loss measurements, the inhibition and adsorption behaviour of N-alkyl lauryl amide (NALA) on carbon steel in sulphuric acid solution was studied. NALAexhibited reasonable corrosion inhibition performance. When concentration of NALA exceeded 0.60mmol/L, its inhibition efficiency reached more than 90%. Polarization measurements showed NALA mainly hindered anodic process. Its adsorption process was an exothermic reaction, and could be attributed to chemical adsorption. There was a transition point on isothermal adsorption curve (θtrans=90.5%). When θ<θ trans, Temkin adsorption isothemal equation was followed. When θ>θ trans, Frumkin adsorption isothermal equation was obeyed.

Key words： Surfactant Corrosion inhibitor Lauryl amide

收稿日期: 1997-02-25

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引用本文:

曾凌三;梁本熹;张跃龙;唐辉尧. N-烷基月桂酰胺对硫酸溶液中碳钢的缓蚀行为[J]. 中国腐蚀与防护学报, 1997, 17(1): 68-72.
. INHIBITION BEHAVIOUR OF N-ALKYL LAURYL AMIDE FOR CARBON STEEL IN SULPHURIC ACID SOLUTION. J Chin Soc Corr Pro, 1997, 17(1): 68-72.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1997/V17/I1/68

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