| 3.5% NaCl饱和Ca(OH)2溶液中醇胺缩聚物对碳钢腐蚀的抑制 |
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| 引用本文： | 周欣,杨怀玉,王福会.3.5% NaCl饱和Ca(OH)2溶液中醇胺缩聚物对碳钢腐蚀的抑制[J].物理化学学报,2011,27(3):647-654. |
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| 作者姓名： | 周欣 杨怀玉 王福会 |
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| 作者单位： | 1.State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P. R. China;2.Department of Metallurgic Engineering, Liaoning Institute of Science and Technology, Benxi 117022, Liaoning Province, P. R. China |
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| 摘 要： | 利用动电位极化, 电化学阻抗谱(EIS)和表面形貌观察方法, 并结合量子化学计算, 在3.5% NaCl饱和Ca(OH)2 溶液中研究探讨了山梨醇与二乙烯三胺缩聚物(SDC)对碳钢腐蚀的抑制行为. 结果表明: SDC的加入可有效降低碳钢的腐蚀电流密度, 提高碳钢的点蚀电位, 表明阻绣剂对Cl-诱导的局部腐蚀具有良好的抑制作用, 为混合型阻锈剂; 且在所研究浓度范围内, 随添加浓度增加, 缓蚀效率提高. 化合物对碳钢腐蚀的抑制主要源自阻锈剂分子在碳钢表面的静电吸附, 且吸附遵循Langmuir等温吸附规律.
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| 关 键 词： | 阻锈剂 钢筋防护 缓蚀效应 吸附行为 |
| 收稿时间： | 2010-09-21 |
| 修稿时间： | 2011-01-28 |
Corrosion Inhibition by Sorbitol/Diethylenetriamine Condensation Product for Carbon Steel in 3.5% NaCl Saturated Ca(OH)2 Solution |
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| ZHOU Xin,YANG Huai-Yu,WANG Fu-Hui.Corrosion Inhibition by Sorbitol/Diethylenetriamine Condensation Product for Carbon Steel in 3.5% NaCl Saturated Ca(OH)2 Solution[J].Acta Physico-Chimica Sinica,2011,27(3):647-654. |
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| Authors: | ZHOU Xin YANG Huai-Yu WANG Fu-Hui |
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| Institution: | 1.State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P. R. China;2.Department of Metallurgic Engineering, Liaoning Institute of Science and Technology, Benxi 117022, Liaoning Province, P. R. China |
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| Abstract: | The inhibitive action of a sorbitol/diethylenetriamine condensation (SDC) product toward carbon steel corrosion in saturated Ca(OH)2 solution containing 3.5% NaCl was investigated using potentiodynamic polarization,electrochemical impedance spectroscopy (EIS),surface morphological observations,and quantum chemical calculations.The results indicate that the addition of SDC can effectively decrease the corrosion current densities of the carbon steel and increase the pitting corrosion potential suggesting that... |
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| Keywords: | Corrosion inhibitor Protection of steel rebar Inhibition effect Adsorption behavior |
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