| 酸性介质中壳聚糖磷酸酯对碳钢的缓蚀效能 |
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| 引用本文： | 吴茂涛,王洪仁,孙明先,李言涛. 酸性介质中壳聚糖磷酸酯对碳钢的缓蚀效能[J]. 全面腐蚀控制, 2011, 25(2): 34-39 |
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| 作者姓名： | 吴茂涛 王洪仁 孙明先 李言涛 |
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| 作者单位： | 1. 青岛双瑞防腐防污工程有限公司,山东,青岛,266101
2. 中国科学院海洋研究所,山东,青岛,266071 |
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| 基金项目： | 国家科技支撑计划2007BAB27B01; 中国科学院知识创新工程重要方向项目No.KZCX2-YW-210 |
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| 摘 要： | 采用失重法研究了壳聚糖磷酸酯在1mol/L HCl和1mol/L H2SO4中的缓蚀性能,采用极化曲线和电化学阻抗法分析了缓蚀机理,并通过扫描电镜对腐蚀形貌进行了分析。结果表明:壳聚糖磷酸酯在盐酸和硫酸体系中对碳钢腐蚀具有很好的抑制作用,在1mol/L HCl中缓蚀率随浓度增加而升高,在1mol/L H2SO4中缓蚀率先升高后降低;极化曲线表明壳聚糖磷酸酯在酸体系中是以抑制阳极过程为主的缓蚀剂;在碳钢表面发生单分子层吸附。
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| 关 键 词： | 缓蚀 极化 阻抗 缓蚀机理 吸附 |
Corrosion Inhibition Performance of Phosponic Chitosan for Mild Steel in Acid Solution |
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| WU Mao-tao,WANG Hong-ren,SUN Ming-xian,LI Yan-tao. Corrosion Inhibition Performance of Phosponic Chitosan for Mild Steel in Acid Solution[J]. Total Corrosion Control, 2011, 25(2): 34-39 |
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| Authors: | WU Mao-tao WANG Hong-ren SUN Ming-xian LI Yan-tao |
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| Affiliation: | WU Mao-tao1,WANG Hong-ren1,SUN Ming-xian1,LI Yan-tao2(1.Sunrui Corrosion and Fouling Control Company,Qingdao 266101,China,2.Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China) |
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| Abstract: | The corrosion inhibition performances of phosponic chitosan(PHC) in 1M HCl and 1M H2SO4 were studied by loss weight method,the inhibition mechanism was analyzed by polarization and electrochemical impedance spectroscopy(EIS),and the corrosion image was investigated by scanning electronic microscopy(SEM).The result indicated that PHC has good inhibition effect for mild steel in acid medium,the inhibition efficiency increased with concentration of chitosan increasing in 1mol/L HCl,and the inhibition efficienc... |
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| Keywords: | inhibition polarization electrochemical impedance spectroscopy inhibition mechanism adsorption |
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