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首页> 外文会议>European Corrosion Congress >Performance Evaluation of Polypropylene glycol as Corrosion Inhibitor for X60 Pipeline Steel in 15 HCI Solution
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Performance Evaluation of Polypropylene glycol as Corrosion Inhibitor for X60 Pipeline Steel in 15 HCI Solution

机译：聚丙二醇作为15％HCl溶液中X60管线钢腐蚀剂的聚丙二醇的性能评价

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摘要

The toxic nature of most organic and inorganic corrosion inhibitors has necessitated the search for corrosion inhibitors with an excellent environmental profile. The present work is focused on the utilization of polypropylene glycol (PPG) for metallic corrosion control and reports on the corrosion inhibition effect of polypropylene glycol for typical X60 pipeline steel in 15% HCI solution using weight loss, electrochemical impedance spectroscopy, linear polarization resistance and potentiodynamic polarization techniques. Water contact angle measurements and scanning electron microscopy (SEM) were employed for surface morphology characterization. Results obtained show that polypropylene glycol acts as a good corrosion inhibitor for X60 steel in the strong acid environment. Inhibition efficiency increased with increase in PPG concentration. Immersion time and temperature were found to have profound effect on the corrosion inhibition performance of PPG. The potentiodynamic polarization studies revealed that PPG functions as a mixed-type inhibitor. The effective corrosion inhibition potential of PPG could be related to the adsorption of PPG molecules at the metal/solution interface which was found to accord with Langmuir adsorption isotherm model and a protective film formation.
机译：大多数有机和无机腐蚀抑制剂的毒性本质需要寻找具有优秀环境概况的腐蚀抑制剂。本作本作的研究专注于利用聚丙二醇（PPG）用于金属腐蚀控制，并使用重量损失，电化学阻抗光谱，线性偏振抗性和耐丙烯溶液在15％HCl溶液中对典型X60管道钢进行腐蚀抑制作用的腐蚀抑制作用。电位动力学偏振技术。用水接触角测量和扫描电子显微镜（SEM）用于表面形态表征。得到的结果表明，聚丙二醇作为强酸环境中X60钢的良好腐蚀抑制剂。随着PPG浓度的增加，抑制效率增加。发现浸渍时间和温度对PPG的腐蚀抑制性能产生了深远的影响。电位动力学偏振研究表明，PPG用作混合型抑制剂。 PPG的有效腐蚀抑制潜力可能与在金属/溶液界面处的PPG分子的吸附有关，该界面被发现符合Langmuir吸附等温线模型和保护膜形成。

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