Corrosion Assessment of Zinc-Rich Primers Containing Polyaniline and the Effect of Acid as a Dopant Academic Article

abstract

• We investigated how adding the dopant acid for polyaniline (PAni)-containing zinc-rich primers (ZRPs) can influence the resulting ZRPs corrosion performance. Two organic acids (camphorsulfonic [CS] and phenylphosphonic acid [H2PP]), and two inorganic acids (phosphoric [H2PO4] and hydrochloricacid [HCl]) were tested and the different PAni-modified ZRPs exhibited differences in their cathodic protection and barrier mechanisms during exposure to a 3.5wt% NaCl solution. The hydrochloricacid-doped PAni-containing ZRP had the best anticorrosion properties in terms of the zinc particle interfacial activation (sacrificial) and coatings barrier properties. Corrosion resistance of the coating systems can be ranked as PAni-Cl

authors

• Castaneda, Homero

published proceedings

• CORROSION

author list (cited authors)

• Li, X., Cubides, Y., He, Z., Soucek, M. D., & Castaneda, H.

citation count

• 4

complete list of authors

• Li, Ximing||Cubides, Yenny||He, Zhouying||Soucek, Mark D||Castaneda, Homero

publication date

• July 2018

publisher

• Association for Materials Protection and Performance (AMPP)  Publisher

published in

• Corrosion: journal of science and engineering  Journal

keywords

• Carbon Steel
• Cathodic Protection
• Electrochemical Impedance Spectroscopy
• Scanning Vibrating Electrode Technique

Digital Object Identifier (DOI)

• 10.5006/2769

start page

• 1141

end page

• 1157

volume

• 74

issue

• 10

URL

• http://dx.doi.org/10.5006/2769