Protection of iron against corrosion with polyaniline primers

Schauer, T.; Joos, A; Dulog, L.; Eisenbach, Claus D.

doi:10.1016/s0300-9440(97)00123-9

Cited by 218 publications

(121 citation statements)

References 37 publications

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“…5(c). It is possible that the redox capability of PANi induced or maintained the Fe 2 O 3 layer sufficient enough to prevent pitting corrosion [7,8,12,18].…”

Section: Methodsmentioning

confidence: 99%

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Corrosion of polyaniline-coated steel in high pH electrolytes

Martyak¹,

McAndrew²,

McCaskie³

et al. 2002

Science and Technology of Advanced Materials

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Cyclic polarization measurements made on steel, iron oxalate-coated steel and polyaniline in a high pH solution and in the absence of chloride ions showed no tendency of the surface towards pitting corrosion. In all cases, the pitting potential was similar to the protection potential. Chlorides in the caustic solution caused significant pitting in the bare steel and slight pitting in the oxalate coated steel. The polyaniline coated-steel showed no pitting in the chloride-containing alkaline solution. Scratches through the polyaniline coating did not initiate pitting in the polyaniline coated steel surface when tested in the chloride-containing solutions. q

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“…5(c). It is possible that the redox capability of PANi induced or maintained the Fe 2 O 3 layer sufficient enough to prevent pitting corrosion [7,8,12,18].…”

Section: Methodsmentioning

confidence: 99%

“…Talo et al [11] showed good corrosion protection of steel with mixed PANi -epoxy coatings. Schauer et al [12] studied the corrosion protection of iron coated with PANi followed by an epoxy top-coat. They also postulated an iron oxide intermediate layer and changes in the oxygen reduction reaction due to PANi.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of polyaniline-coated steel in high pH electrolytes

Martyak¹,

McAndrew²,

McCaskie³

et al. 2002

Science and Technology of Advanced Materials

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“…Samples used in corrosion study were mechanically press cut into 2.5cm x 3.0cm rectangular strip and used without any further polishing. However, they were, degreased in absolute ethanol, methanol, and propane and dried in Nitrogen to keep in moisture free desiccators before the corrosion studies were commenced [1][2][3][4][5][6][7][8].…”

Section: Reagents and Materialsmentioning

confidence: 99%

“…[3]. However, many reports have shown that polyaniline, topcoat polyaniline, or traditional topcoat combinational polyaniline adhere poorly [4]. Few reports have shown that emeraldine base or emeraldine base composite with polyvinylchloride inhibit corrosion better than emeraldine salt or doped form of polyaniline in the presence of NaCl solution .…”

Section: Introductionmentioning

confidence: 99%

Corrosion Inhibition Study of Zinc Oxide-Polyaniline Nanocomposite for Aluminum and Steel

Alvi¹

2015

AJAC

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Abstract:The nanocomposites of inorganic oxide with conducting polymer display novel properties resulting from the molecular level interaction of the two dissimilar chemical components. Recently, Farah et al have synthesized ZnO-polyaniline (PANI) nanocomposite, and have studied the electronic properties of ZnO-PANI films [1]. Although to date, chromium has proved the best candidate in corrosion inhibition in acidic medium, but still it is hoped that the combination of different techniques and various compounds will provide the required protection against corrosion. Our present study has shown that the ZnO-PANI nanocomposite coatings on steel and aluminum prevents corrosion due to the internal sacrificial electrode formation and as well as the barrier effect at the ZnO-PANI and metal interface.

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“…1. [7] In this figure, the circuit component R e corresponds to the ohmic drop across the electrolyte, C c is attributed to the electrical capacitance of the polymer membrane, R p is the electrical resistance of pores, R ct represents the charge transfer resistance, W is Warburg impedance which characterizes the diffusion process, and C dl represents double layer capacitance.…”

Section: Introductionmentioning

confidence: 99%

EIS studies of electrodeposition process of manganese and copper doped ZnO wires

Enculescu

Sima

Vasile

et al. 2008

Surface & Interface Analysis

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Electrodeposition of manganese-and copper-doped ZnO wires into polycarbonate membranes, from an aqueous solution containing 0.05 mol dm −3 Zn(NO 3 ) 2 + 0.01 mol dm −3 Mn(NO 3 ) 2 + 0.0005 mol dm −3 Cu(NO 3 ) 2 + 0.0075 mol dm −3 lactic acid, pH = 4.7 was investigated using linear sweep voltammetry and electrochemical impedance spectroscopy (EIS). The equivalent electrical circuits for fitting experimental results were similar to those for characterization of metal/polymer coating systems. Impedance data and voltammetric curves showed that an increase of local pH due to reduction process of nitrate ions induces the co-precipitations of metal ions in the proximity of electrode as oxides.

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Protection of iron against corrosion with polyaniline primers

Cited by 218 publications

References 37 publications

Corrosion of polyaniline-coated steel in high pH electrolytes

Corrosion of polyaniline-coated steel in high pH electrolytes

Corrosion Inhibition Study of Zinc Oxide-Polyaniline Nanocomposite for Aluminum and Steel

EIS studies of electrodeposition process of manganese and copper doped ZnO wires

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