High performance polypyrrole coating for corrosion protection and biocidal applications

High performance polypyrrole coating for corrosion protection and biocidal applications Article history: Polypyrrole (PPy) coating was electrochemically synthesized on carbon steel using sulfonic acids as Received 28 April 2017 dopants: p-toluene sulfonic acid (p-TSA), sulfuric acid (SA), (±) camphor sulfonic acid (CSA), sodium Received in revised form 10 July 2017 dodecyl sulfate (SDS), and sodium dodecylbenzene sulfonate (SDBS). The effect of acidic dopants (p-TSA, Accepted 13 August 2017 SA, CSA) on passivation of carbon steel was investigated by linear potentiodynamic and compared with Available online 31 August 2017 morphology and corrosion protection performance of the coating produced. The types of the dopants used were significantly affecting the protection efficiency of the coating against chloride ion attack on Keywords: the metal surface. The corrosion performance depends on size and alignment of dopant in the polymer Conducting polymer coating backbone. Both p-TSA and SDBS have extra benzene ring that stack together to form a lamellar sheet like Polypyrrole barrier to chloride ions thus making them appropriate dopants for PPy coating in suppressing the corro- Corrosion protection sion at significant level. Further, adhesion performance was enhanced by adding long chain carboxylic Anti-microbial acid (decanoic acid) directly in the monomer solution. In addition, PPy coating doped with SDBS displayed Microbially induced corrosion excellent http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

High performance polypyrrole coating for corrosion protection and biocidal applications

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2017.08.093
Publisher site
See Article on Publisher Site

Abstract

Article history: Polypyrrole (PPy) coating was electrochemically synthesized on carbon steel using sulfonic acids as Received 28 April 2017 dopants: p-toluene sulfonic acid (p-TSA), sulfuric acid (SA), (±) camphor sulfonic acid (CSA), sodium Received in revised form 10 July 2017 dodecyl sulfate (SDS), and sodium dodecylbenzene sulfonate (SDBS). The effect of acidic dopants (p-TSA, Accepted 13 August 2017 SA, CSA) on passivation of carbon steel was investigated by linear potentiodynamic and compared with Available online 31 August 2017 morphology and corrosion protection performance of the coating produced. The types of the dopants used were significantly affecting the protection efficiency of the coating against chloride ion attack on Keywords: the metal surface. The corrosion performance depends on size and alignment of dopant in the polymer Conducting polymer coating backbone. Both p-TSA and SDBS have extra benzene ring that stack together to form a lamellar sheet like Polypyrrole barrier to chloride ions thus making them appropriate dopants for PPy coating in suppressing the corro- Corrosion protection sion at significant level. Further, adhesion performance was enhanced by adding long chain carboxylic Anti-microbial acid (decanoic acid) directly in the monomer solution. In addition, PPy coating doped with SDBS displayed Microbially induced corrosion excellent

Journal

Applied Surface ScienceElsevier

Published: Jan 1, 2018

References

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