| 绿色聚天冬氨酸复配缓蚀剂对A3碳钢的缓蚀抑雾作用 |
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| 引用本文： | 许奕春,汤兵,付丰连,王俏运,林少琼,冯春. 绿色聚天冬氨酸复配缓蚀剂对A3碳钢的缓蚀抑雾作用[J]. 物理化学学报, 2010, 26(5): 1225-1232. DOI: 10.3866/PKU.WHXB20100516 |
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| 作者姓名： | 许奕春 汤兵 付丰连 王俏运 林少琼 冯春 |
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| 作者单位： | Faculty of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, P. R. China; Faculty of Light and Chemical Engineering, Guangdong University of Technology, Guangzhou 510006, P. R. China |
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| 摘 要： | 采用失重法和极化曲线法研究了聚天冬氨酸(PASP)和十二烷基酚聚氧乙烯醚(OP-10)复配对A3碳钢在6mol·L-1HCl腐蚀介质中的协同吸附行为及缓蚀抑雾作用.结果表明:复配缓蚀剂可有效抑制A3碳钢在HC1介质中的腐蚀,当PASP浓度为20g·L-1,缓蚀率可达94%,抑雾率83%;随着温度的升高,复配缓蚀剂的缓蚀性能下降.复合缓蚀剂在钢表面的吸附符合校正的Langmuir模型,吸附过程为放热、熵减的自发过程;复配体系属于阳极型缓蚀剂.
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| 关 键 词： | 聚天冬氨酸 十二烷基酚聚氧乙烯醚 缓蚀抑雾 A3碳钢 盐酸 |
| 收稿时间： | 2009-10-26 |
| 修稿时间： | 2010-03-30 |
Corrosion Inhibition and Antifog Properties of an Environmentally Friendly Polyaspartate Inhibitor on A3 Carbon Steel |
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| XU Yi-Chun TANG Bing, FU Feng-Lian WANG Qiao-Yun LIN Shao-Qiong FENG Chun. Corrosion Inhibition and Antifog Properties of an Environmentally Friendly Polyaspartate Inhibitor on A3 Carbon Steel[J]. Acta Physico-Chimica Sinica, 2010, 26(5): 1225-1232. DOI: 10.3866/PKU.WHXB20100516 |
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| Authors: | XU Yi-Chun TANG Bing FU Feng-Lian WANG Qiao-Yun LIN Shao-Qiong FENG Chun |
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| Affiliation: | Faculty of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, P. R. China; Faculty of Light and Chemical Engineering, Guangdong University of Technology, Guangzhou 510006, P. R. China |
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| Abstract: | The synergetic adsorption, antifogging and corrosion inhibition properties of polyaspartate (PASP) and dodecane phenol polyoxyethylene ether (OP-10) on A3 steel were investigated in 6 mol·L-1 HCl by weight loss and electrochemical techniques. Results showed that the combined inhibitor strongly inhibited the corrosion of A3 carbon steel in HCl. The efficiencies of corrosion inhibition and antifogging using 20 g·L-1 PASP were 94% and 83% , respectively. The inhibition efficiency decreased as the system temperature increased. The adsorption behavior of the combined inhibitor on the surface of the steel followed the amended Langmuir adsorption isotherm equation. The adsorption resulted in an entropy decrease and was a spontaneous and exothermic process. The combined inhibitors were anodic inhibitors. |
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| Keywords: | Polyaspartate Dodecane phenol polyoxyethylene ether Inhibition and antifog A3 carbon steel Hydrochloric acid |
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