The present study examines the role of conductive polymer poly(o phenylenediamine) in corrosion inhibition and its antibacterial activity against bacterial biofilm (Bacillus cereus ACE4) on aluminum 2024 aeronautical alloy (AA 2024) Poly(o phenylenediamine) (PoPD) was successfully electropolymerized by cyclic voltammetery on AA2024 using sulfuric acid solution containing o phenylenediamine monomer The PoPD coating was characterized by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy energy dispersive X ray (SEM-EDAX) spectroscopy analysis The PoPD was polymerized on the metal surface as thin, transparent layers with a ladder conductive polymer structure. Results showed that the charge transfer resistance of the PoPD coating were higher (817 kOhm and 3 28 kOhm) when compared to a pristine and bacterial inoculated system (2 60 Ohm and 0 23 kOhm). The PoPD coating effectively inhibits the adhesion of biofilm on AA 2024 due to its biocidal property, demonstrating that PoPD is a novel and superior candidate for the inhibition of biocorrosion by B. Cereus ACE4 in an aeronautical fuel storage tank.
Inhibition of biocorrosion of aluminum 2024 aeronautical alloy by conductive ladder polymer poly(o-phenylenediamine)
Inhibierung der Biokorrosion der Aluminium-Luftfahrtlegierung 2024 durch eine leitfähige Polymerschicht aus Poly(o-Phenylendiamin)
Industrial and Engineering Chemistry Research ; 50 , 4 ; 2040-2046
2011
7 Seiten, 6 Bilder, 1 Tabelle, 37 Quellen
Article (Journal)
English
Aluminiumkupfermagnesiumlegierung , Kraftstoffbehälter , bakterielle Korrosion , Beschichten mit Nichtmetallen , Polymerschicht , Phenylendiamin , Elektropolymerisation , leitfähiges Polymer , Ladungstransport (elektrische Ladung) , Oberflächenwiderstand , zyklische Voltammetrie , Fourier-Transform-Infrarotspektroskopie
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