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Coatings Corrosion Resistance of Poly(o-Phenylenediamine) on Mild Steel in 3.5% NaCl: Influence of Inorganic Acid.
- Source :
- JOM: The Journal of The Minerals, Metals & Materials Society (TMS); 2020, Vol. 72 Issue 12, p4288-4295, 8p
- Publication Year :
- 2020
-
Abstract
- Poly(o-phenylenediamine) was synthesized in different inorganic acid media, hydrochloric (HCl), nitric (HNO<subscript>3</subscript>), and phosphoric acid (H<subscript>3</subscript>PO<subscript>4</subscript>). The aim was to investigate the protective effect of doped coatings on mild steel in an aggressive environment. The synthesized doped-PoPD products were characterized by x-ray diffractometry, Fourier transform infrared spectroscopy, scanning electron microscopy, and cyclic voltammetry. The inhibition abilities of doped coatings were evaluated by potentiodynamic polarization measurements and electrochemical impedance spectroscopy in 3.5% NaCl solution. In the present article, the lowest corrosion current and highest protection efficiency of the doped polymer were observed for the polymer synthesized in HNO<subscript>3</subscript> medium. The results showed that good protection of mild steel can be achieved by PoPD coating doped with inorganic acid in 3.5% NaCl solution. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10474838
- Volume :
- 72
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- JOM: The Journal of The Minerals, Metals & Materials Society (TMS)
- Publication Type :
- Academic Journal
- Accession number :
- 147529607
- Full Text :
- https://doi.org/10.1007/s11837-019-03851-8