Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7895997 | Corrosion Science | 2014 | 45 Pages |
Abstract
The inhibiting performance of β-Cyclodetrin-modified acrylamide polymer (poly(AM-co-A-β-CD-co-NaAA)) on X70 steel in 0.5 M H2SO4 solution has been investigated using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The polarization curves results reveal that polymer acts as a mixed-type inhibitor. The inhibition efficiency is found to increase by increasing the polymer concentration up to maximum 84.9% for 150 mg Lâ1 at 303 K. The adsorption is confirmed to obey the Langmuir isotherm. The SEM and EDS results demonstrate that X70 surface is protected by β-Cyclodextrin-modified acrylamide polymer.
Related Topics
Physical Sciences and Engineering
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Authors
Changjun Zou, Xueling Yan, Yibie Qin, Meng Wang, Yuan Liu,