Corrosion Inhibition of Aniline-formaldehyde Polymer on Q235 Mild Steel in HCl Solution

Cor Sci Pro Tech

2011, Vol. 23

Issue (2): 139-142 DOI:

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Corrosion Inhibition of Aniline-formaldehyde Polymer on Q235 Mild Steel in HCl Solution

SHI Fu-hua¹, WANG Xiu-tong²,YU Jian-qiang¹, HOU Bao-rong²

1. Laboratory of New Fiber Materials and Modern Textile, School of Chemistry, Chemical Engineering and Environment, Qingdao University, Qingdao 266071
2. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071

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Abstract Aniline-formaldehyde polymer was synthesized by chemical oxidation method. The structure and morphology of the polymer were characterized by fourier transform infrared spectoscopy (FTIR) and scanning electrom microscopy (SEM), respectively. The corrosion inhibition of the polymer on Q235 steel in 1 mol/L HCl was studied by mass loss, polarization curves and electrochemical impendence spectroscopy (EIS). The results indicated that the polymer is an anodic inhibitor, which can be adsorbed on the Q235 mild steel surface, leading to the formation of a protective film to decrease the corrosion rate.

Key words: aniline-formaldehyde polymer corrosion inhibitor

Received: 03 November 2009

TG174.46

Corresponding Authors: SHI Fu-hua E-mail: wangxiutong@ms.qdio.ac.cn

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SHI Fu-hua, WANG Xiu-tong,YU Jian-qiang, HOU Bao-rong. Corrosion Inhibition of Aniline-formaldehyde Polymer on Q235 Mild Steel in HCl Solution. Cor Sci Pro Tech, 2011, 23(2): 139-142.

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https://www.cspt.org.cn/EN/ OR https://www.cspt.org.cn/EN/Y2011/V23/I2/139

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