PANI-Fe2O3 composite for enhancement of active life of alkyd resin coating for corrosion protection of steel

V. S. Sumi; S. R. Arunima; M. J. Deepa; M. Ameen Sha; A. H. Riyas; M. S. Meera; Viswanathan S. Saji; S. M.A. Shibli

doi:10.1016/j.matchemphys.2020.122881

PANI-Fe₂O₃ composite for enhancement of active life of alkyd resin coating for corrosion protection of steel

V. S. Sumi
, S. R. Arunima
, M. J. Deepa
, M. Ameen Sha
, A. H. Riyas
, M. S. Meera
, Viswanathan S. Saji
, S. M.A. Shibli^*

^*Corresponding author for this work

Interdisciplinary Research Center for Advanced Materials

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

Abstract

In-situ synthesized PANI-Fe₂O₃ composite was incorporated into a commercial alkyd resin and developed an efficient anticorrosive coating for mild steel. Both the composite and the fabricated alkyd resin coating were systematically characterized by using FTIR, XRD, SEM, TEM, XPS, TGA, OSP, SKPM, and EDS. Corrosion-resistant characteristics of the nanocomposite coatings were evaluated by potentiodynamic polarization, impedance spectroscopy, and long-term open circuit potential measurements in 3.5% NaCl and 1 M HCl. The much-improved corrosion resistance of the PANI-Fe₂O₃ incorporated coating was correlated with the better barrier performance and the passivation protection offered. The higher corrosion resistance observed in the acidic medium was explained by the complimentary cathodic reaction of the conductive emeraldine-PANI to the nonconductive leuco-PANI. The fabrication method provided can be beneficial for developing eco-friendly anticorrosion ‘conducting polymer-metal oxide-alkyd resin’ coatings.

Original language	English
Article number	122881
Journal	Materials Chemistry and Physics
Volume	247
DOIs	https://doi.org/10.1016/j.matchemphys.2020.122881
State	Published - 1 Jun 2020

Bibliographical note

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

Alkyd resin
Corrosion protection
Nanocomposite
PANI-FeO
Surface coating

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

Access to Document

10.1016/j.matchemphys.2020.122881

Cite this

@article{b75c85a601754db6995f2d2984a8fdd4,

title = "PANI-Fe2O3 composite for enhancement of active life of alkyd resin coating for corrosion protection of steel",

abstract = "In-situ synthesized PANI-Fe2O3 composite was incorporated into a commercial alkyd resin and developed an efficient anticorrosive coating for mild steel. Both the composite and the fabricated alkyd resin coating were systematically characterized by using FTIR, XRD, SEM, TEM, XPS, TGA, OSP, SKPM, and EDS. Corrosion-resistant characteristics of the nanocomposite coatings were evaluated by potentiodynamic polarization, impedance spectroscopy, and long-term open circuit potential measurements in 3.5\% NaCl and 1 M HCl. The much-improved corrosion resistance of the PANI-Fe2O3 incorporated coating was correlated with the better barrier performance and the passivation protection offered. The higher corrosion resistance observed in the acidic medium was explained by the complimentary cathodic reaction of the conductive emeraldine-PANI to the nonconductive leuco-PANI. The fabrication method provided can be beneficial for developing eco-friendly anticorrosion {\textquoteleft}conducting polymer-metal oxide-alkyd resin{\textquoteright} coatings.",

keywords = "Alkyd resin, Corrosion protection, Nanocomposite, PANI-FeO, Surface coating",

author = "Sumi, \{V. S.\} and Arunima, \{S. R.\} and Deepa, \{M. J.\} and \{Ameen Sha\}, M. and Riyas, \{A. H.\} and Meera, \{M. S.\} and Saji, \{Viswanathan S.\} and Shibli, \{S. M.A.\}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = jun,

day = "1",

doi = "10.1016/j.matchemphys.2020.122881",

language = "English",

volume = "247",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

}

TY - JOUR

T1 - PANI-Fe2O3 composite for enhancement of active life of alkyd resin coating for corrosion protection of steel

AU - Sumi, V. S.

AU - Arunima, S. R.

AU - Deepa, M. J.

AU - Ameen Sha, M.

AU - Riyas, A. H.

AU - Meera, M. S.

AU - Saji, Viswanathan S.

AU - Shibli, S. M.A.

PY - 2020/6/1

Y1 - 2020/6/1

N2 - In-situ synthesized PANI-Fe2O3 composite was incorporated into a commercial alkyd resin and developed an efficient anticorrosive coating for mild steel. Both the composite and the fabricated alkyd resin coating were systematically characterized by using FTIR, XRD, SEM, TEM, XPS, TGA, OSP, SKPM, and EDS. Corrosion-resistant characteristics of the nanocomposite coatings were evaluated by potentiodynamic polarization, impedance spectroscopy, and long-term open circuit potential measurements in 3.5% NaCl and 1 M HCl. The much-improved corrosion resistance of the PANI-Fe2O3 incorporated coating was correlated with the better barrier performance and the passivation protection offered. The higher corrosion resistance observed in the acidic medium was explained by the complimentary cathodic reaction of the conductive emeraldine-PANI to the nonconductive leuco-PANI. The fabrication method provided can be beneficial for developing eco-friendly anticorrosion ‘conducting polymer-metal oxide-alkyd resin’ coatings.

AB - In-situ synthesized PANI-Fe2O3 composite was incorporated into a commercial alkyd resin and developed an efficient anticorrosive coating for mild steel. Both the composite and the fabricated alkyd resin coating were systematically characterized by using FTIR, XRD, SEM, TEM, XPS, TGA, OSP, SKPM, and EDS. Corrosion-resistant characteristics of the nanocomposite coatings were evaluated by potentiodynamic polarization, impedance spectroscopy, and long-term open circuit potential measurements in 3.5% NaCl and 1 M HCl. The much-improved corrosion resistance of the PANI-Fe2O3 incorporated coating was correlated with the better barrier performance and the passivation protection offered. The higher corrosion resistance observed in the acidic medium was explained by the complimentary cathodic reaction of the conductive emeraldine-PANI to the nonconductive leuco-PANI. The fabrication method provided can be beneficial for developing eco-friendly anticorrosion ‘conducting polymer-metal oxide-alkyd resin’ coatings.

KW - Alkyd resin

KW - Corrosion protection

KW - Nanocomposite

KW - PANI-FeO

KW - Surface coating

UR - https://www.scopus.com/pages/publications/85081114500

U2 - 10.1016/j.matchemphys.2020.122881

DO - 10.1016/j.matchemphys.2020.122881

M3 - Article

AN - SCOPUS:85081114500

SN - 0254-0584

VL - 247

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

M1 - 122881

ER -