Characterization and corrosion of polypyrrole/sodium dodecylbenzene sulfonate electropolymerised on aluminum alloy 1100

Galvanostatic deposition of polypyrrole in the presence of tartaric acid for electrochemical supercapacitor

“…In this study, SEM has been used to investigate the surface morphology of polymer-coated electrodes. The films grown on Pt and 316Ti SS surfaces have a globular structure, with the formation of aggregates and a uniform surface morphology, often referred in the literature as "cauliflower" [42,43]. SEM images of PPy, PPy-TA and PPy-TA-TX100 deposited on Pt substrate are shown in Fig.…”

Electrosynthesis of PAni/PPy coatings doped by phosphotungstate on mild steel and their corrosion resistances

“…For n = 0, CPE represents a resistance and for n = 1 a capacitance. In the equivalent circuit, the CPE instead of the ideal capacitance is used to define the inhomogeneity in the system [33,34]. From Figs.…”

Polypyrrole Modified E-Coat Paint for Corrosion Protection of Aluminum AA1200

“…In addition, the PPy has the ability to change its oxidation state, depending on the characteristics of the medium. This behavior allows to create a passive layer on the surface of the metal, reduce the corrosion reaction rate and improve the corrosion protection of the metal (Castagno et al, 2011;Gergely et al, 2011;González and Saidman, 2012;Qi et al, 2015;Jiang et al, 2019). The PPy can be obtained by several techniques and one of the most used is the chemical oxidation of the pyrrole in the presence of stabilizers for the production of an aqueous dispersion (Ramôa et al, 2014).…”

“…Many studies reported in the open literature have shown the potentiality of PPy-filled epoxy coatings in preventing for corrosion of aluminum alloys (Arenas et al, 2008;Qi et al, 2008;Yan et al, 2010;Castagno et al, 2011;Jadhav et al, 2013). Good adhesiveness on metallic substrate, suitable chemical and mechanical properties, environmental stability, excellent corrosion resistance for metallic materials and non-toxicity are among the strengths of PPy-filled epoxy coatings (Gupta et al, 2013).…”