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Investigation of Alumina-Doped Prunus domestica Gum Grafted Polyaniline Epoxy Resin for Corrosion Protection Coatings for Mild Steel and Stainless Steel

Kamran, Muhammad; Shah, Anwar ul Haq Ali ; Rahman, Gul; Bilal, Salma; Röse, Philipp ORCID iD icon 1
1 Institut für Angewandte Materialien – Elektrochemische Technologien (IAM-ET1), Karlsruher Institut für Technologie (KIT)

Abstract:

Eco-friendly inhibitors have attracted considerable interest due to the increasing environmental issues caused by the extensive use of hazardous corrosion inhibitors. In this paper, environmentally friendly PDG-g-PANI/Al$_2$O$_3$ composites were prepared by a low-cost inverse emulsion polymerization for corrosion inhibition of mild steel (MS) and stainless steel (SS). The PDG-g-PANI/Al$_2$O$_3$ composites were characterized by different techniques such as X-ray diffraction (XRD), UV/Vis, and FTIR spectroscopy. XRD measurements show that the PDG-g-PANI/Al$_2$O$_3$ composite is mostly amorphous and scanning electron micrographs (SEM) reveal a uniform distribution of Al$_2$O$_3$ on the surface of the PDG-g-PANI matrix. The composite was applied as a corrosion inhibitor on mild steel (MS) and stainless steel (SS), and its efficiency was investigated by potentiodynamic polarization measurement in a 3.5% NaCl and 1 M H$_2$SO$_4$ solution. Corrosion kinetic parameters obtained from Tafel evaluation show that the PDG-g-PANI/Al$_2$O$_3$ composites protect the surface of MS and SS with inhibition efficiencies of 92.3% and 51.9% in 3.5% NaCl solution, which is notably higher than those obtained with untreated epoxy resin (89.3% and 99.5%). ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000153913
Veröffentlicht am 16.12.2022
Originalveröffentlichung
DOI: 10.3390/polym14235128
Scopus
Zitationen: 7
Web of Science
Zitationen: 6
Dimensions
Zitationen: 8
Cover der Publikation
Zugehörige Institution(en) am KIT Center for Electrochemical Energy Storage Ulm & Karlsruhe (CELEST)
Institut für Angewandte Materialien – Elektrochemische Technologien (IAM-ET1)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 12.2022
Sprache Englisch
Identifikator ISSN: 2073-4360
KITopen-ID: 1000153913
Erschienen in Polymers
Verlag MDPI
Band 14
Heft 23
Seiten Art.-Nr.: 5128
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 25.11.2022
Schlagwörter PANI composite, corrosion protection, mild steel, Tafel analysis, epoxy resin, PDG, Al2O3, corrosion inhibition efficiency
Nachgewiesen in Dimensions
Web of Science
Scopus
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