| 二乙基二硫代氨基甲酸钠对冷轧钢在乙酸溶液中的缓蚀性能 |
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| 引用本文： | 余晋苗,白玮,杨艳,史英浩,郭俊明.二乙基二硫代氨基甲酸钠对冷轧钢在乙酸溶液中的缓蚀性能[J].常熟理工学院学报,2014(2):66-69. |
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| 作者姓名： | 余晋苗 白玮 杨艳 史英浩 郭俊明 |
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| 作者单位： | 云南民族大学民族药资源化学国家民委-教育部重点实验室,云南昆明650500 |
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| 基金项目： | 国家自然科学基金项目“氟离子、血链球菌及乳酸对钛材料的腐蚀影响及机理”（51161025）;云南省自然科学基金项目“有机酸薄液层对电子材料电偶腐蚀研究”（2011FZ173） |
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| 摘 要： | 采用Tafel极化曲线法和电化学交流阻抗谱法测定不同浓度缓蚀剂在0.2 mol·L-1乙酸介质中对冷轧钢的缓蚀作用.结果表明：在20℃、0.2 mol·L-1乙酸溶液中二乙基二硫代氨基甲酸钠对冷轧钢具有较好的缓蚀效果，缓蚀率随着缓蚀剂浓度的增加而增大，当缓蚀剂的浓度为3×10-3 mol·L-1时，缓蚀率达到85%，属于阴极型缓蚀剂.二乙基二硫代氨基甲酸钠在冷轧钢表面的吸附符合Langmuir吸附等温式，其吸附为自发进行的物理和化学吸附.
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| 关 键 词： | 二乙基二硫代氨基甲酸钠 交流阻抗谱法 冷轧钢 乙酸 |
Corrosion Inhibition of SDDTC for Cold Rolled Steel in Acetic Acid Solution |
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| YU Jin-miao,BAI Wei,YANG Yan,SHI Ying-hao,GUO Jun-ming.Corrosion Inhibition of SDDTC for Cold Rolled Steel in Acetic Acid Solution[J].Journal of Changshu Institute of Technology,2014(2):66-69. |
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| Authors: | YU Jin-miao BAI Wei YANG Yan SHI Ying-hao GUO Jun-ming |
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| Institution: | (Key Laboratory of Ethnic Medicine Resource Chemistry,State Ethnic Affairs Commission ＆ Ministry of Education, Yunnan University of Nationalities, Kunming 650500, China) |
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| Abstract: | The corrosion inhibition of the SDDTC for cold rolled steel in 0.2 mol·L-1 acetic acid was investigated with Tafel polarization curve and Electrochemical impedance spectroscopy （EIS） at different concentrations. The experimental results showed that SDDTC was a good inhibitor for cold rolled steel in 0.2 mol·L-1 acetic acid, and that inhibition efficiency increased with an increased with the concentration of inhibitor at 20 ℃. When the concentration was 3 × 10-3 mol·L-1, the inhibition rate reached 85%, and was a cathodic corrosion inhibitor in HAc solution. The adsorption of SDDTC on cold rolled steel in HAc solution obeyed the Langmuir adsorption isotherm equation, and depended on physical adsorption and chemical adsorption. |
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| Keywords: | sodium diethyldithiocarbamate trihydrate electrochemical impedance spectroscopy cold rolled steel acetic acid |
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