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


  • 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

published proceedings


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

  • January 2018