| 本征态聚苯胺对碳钢在3.5% NaCl溶液中的腐蚀行为影响 |
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| 引用本文： | 黄辉,邵亚薇,张涛,孟国哲.本征态聚苯胺对碳钢在3.5% NaCl溶液中的腐蚀行为影响[J].腐蚀科学与防护技术,2009,21(2). |
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| 作者姓名： | 黄辉 邵亚薇 张涛 孟国哲 |
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| 作者单位： | 哈尔滨工程大学材料科学与化学工程学院腐蚀与防护实验室,哈尔滨,150001 |
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| 摘 要： | 通过化学方法合成本征态聚苯胺,采用动电位极化曲线、电化学噪声(EN)和扫描电化学显微镜(SECM)等方法研究了它对碳钢在3.5%NaCl溶液中腐蚀行为的影响.结果表明:涂覆本征态聚苯胺后使碳钢的阳极塔菲尔斜率明显增大,抑制了碳钢的阳极过程;随着浸泡时间的延长,本征态聚苯胺涂层的开路电位明显高于碳钢的值,并呈不断升高的趋势,涂层的保护性逐渐增强.电化学噪声随机分析的结果显示聚苯胺涂层的腐蚀孕育速度以及腐蚀发生的概率都要低于碳钢试样.
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| 关 键 词： | 本征态聚苯胺 腐蚀行为 电化学噪声 扫描电化学显微镜 随机分析 |
EFFECT OF EMERALDINE BASE(EB)FROM OF POLYANILINE ON CORROSION BEHAVIOR OF CARBON STEEL IN 3.5% NaCl SOLUTION |
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| HUANG Hui,SHAO Ya-wei,ZHANG Tao,MENG Guo-zhe.EFFECT OF EMERALDINE BASE(EB)FROM OF POLYANILINE ON CORROSION BEHAVIOR OF CARBON STEEL IN 3.5% NaCl SOLUTION[J].Corrosion Science and Protection Technology,2009,21(2). |
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| Authors: | HUANG Hui SHAO Ya-wei ZHANG Tao MENG Guo-zhe |
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| Affiliation: | HUANG Hui,SHAO Ya-wei,ZHANG Tao,MENG Guo-zhe Corrosion , Protection Laboratory,College of Material Science , Chemical Engineering,Harbin Engineering University,Harbin 150001 |
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| Abstract: | Emeraldine base(EB)form of polyaniline was synthesized by chemical method.Potentiodynamic polarization curves,electrochemical noise(EN)and scanning electrochemical microscope(SECM)were used to investigate the effect of EB-PANI on the corrosion behavior of carbon steel in 3.5% NaCl solution.The results showed that EB-PANI increased the anodic Tafel slope and restrained the anodic process of carbon steel obviously.During immersion,the open circuit potential(OCP)of carbon steel decreased quickly,however the OC... |
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