| 六次甲基四胺对碳钢缓蚀行为的研究 |
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| 引用本文： | 刘东,林修洲,朱想明. 六次甲基四胺对碳钢缓蚀行为的研究[J]. 当代化工, 2011, 40(2): 111-113 |
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| 作者姓名： | 刘东 林修洲 朱想明 |
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| 作者单位： | 刘东,朱想明,LIU Dong,ZHU Xiang-ming(武汉工程大学化工与制药学院,湖北,武汉,430073);林修洲,LIN Xiu-zhou(四川理工学院材料与化学工程系,四川,自贡,64300) |
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| 基金项目： | 绿色化工过程省部共建教育部重点实验室开放基金，材料腐蚀与防腐四川省高校重点实验室开放基金 |
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| 摘 要： | 采用电化学方法和原子力显微镜技术研究了六次甲基四胺(HMTA)在盐酸介质中对碳钢的缓蚀行为.结果表明:HMTA对碳钢具有较好的缓蚀作用,是一种混合型的缓蚀剂.随着HMTA浓度的增加,缓蚀效率明显增加;在50℃时遵循Langmuir's等温吸附模型,表面吸附能△Gads<0,吸附过程可以自发进行;原子力显微镜分析则表明,...
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| 关 键 词： | 碳钢 六次甲基四胺 酸洗 腐蚀 |
Inhibiting Behavior of Hexamethylenetetramine on Carbon Steel |
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| LIU Dong,LIN Xiu-zhou,ZHU Xiang-ming. Inhibiting Behavior of Hexamethylenetetramine on Carbon Steel[J]. Contemporary Chemical Industry, 2011, 40(2): 111-113 |
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| Authors: | LIU Dong LIN Xiu-zhou ZHU Xiang-ming |
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| Affiliation: | LIU Dong1,LIN Xiu-zhou2,ZHU Xiang-ming1(1.School of Chemical Engineering & Pharmacy,Wuhan Institute of Technology,Hubei Wuhan 430073,China,2.Department of Material & Chemical Engineering,Sichuan Institute of Science & Engineering,Sichuan Zigong 643000,China) |
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| Abstract: | Inhibiting behavior of hexamethylenetetramine （HMTA） on carbon steel in HCl was studied by electrochemistry and AFM. The results indicate that HMTA can be adsorbed on surface of the metal and reduce corrosion rate, which is a mixed-type inhibitor; Inhibition efficiency （In） increases with increasing of HMTA concentration. Adsorption follows the Langmuir isotherm at 50℃ and surface adsorption energy （AGads） is negative value, so the adsorption process can occur automatically. AFM analysis shows that HMTA can affect the surface roughness and protect metal. |
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| Keywords: | Carbon steel HMTA Pickling Corrosion |
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