Corrosion protection of cold-rolled steel by zinc-rich epoxy paint coatings loaded with nano-size alumina supported polypyrrole

András Gergely, Éva Pfeifer, I. Bertóti, Tamás Török, E. Kálmán

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

High porosity and intense galvanic function related low electrolytic barrier profile and fast delamination of zinc-rich paints (ZRPs) are addressed by the utilisation of intimately structured, highly dispersed, polypyrrole (PPy) deposited alumina particles (PDAPs) embedded zinc-rich hybrid paints. The more globular but less-packed structure type PPy-contained water-solvent-prepared PDAPs-composited hybrids comprising spherical zinc pigment at 70. wt.%, provided moderate galvanic function with enhanced electrolytic barrier properties. In addition, the less globular structured but well-packed PPy-comprised aqueous ethanol-solvent-prepared PDAPs-composited hybrid coatings indicated highly efficient suppressed galvanic function and improved barrier properties, realising solid performance improvement over conventional ZRPs in immersion and salt-spray chamber tests. Furthermore, the application of highly dispersed PDAPs at a content of 3.2. wt.% while PPy incorporated into zinc-rich hybrids at 0.16. wt.% is proposed to result in emerging additional functionalities increasing long-term anticorrosive performance of ZRPs by inhibiting sacrificial and self-corrosion of zinc and scavenging oxidative radicals thereby hindering oxidative degradation of the organic binder.

Original languageEnglish
Pages (from-to)3486-3499
Number of pages14
JournalCorrosion Science
Volume53
Issue number11
DOIs
Publication statusPublished - Nov 2011

Fingerprint

Aluminum Oxide
Steel
Polypyrroles
Corrosion protection
Paint
Zinc
Alumina
Coatings
Scavenging
polypyrrole
Delamination
Pigments
Binders
Ethanol
Salts
Porosity
Corrosion
Degradation
Water

Keywords

  • A. Cold-rolled steel
  • A. Polypyrrole
  • B. RF GD OES
  • B. XPS
  • C. Cathodic protection
  • C. Hybrid paints

ASJC Scopus subject areas

  • Materials Science(all)
  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Corrosion protection of cold-rolled steel by zinc-rich epoxy paint coatings loaded with nano-size alumina supported polypyrrole. / Gergely, András; Pfeifer, Éva; Bertóti, I.; Török, Tamás; Kálmán, E.

In: Corrosion Science, Vol. 53, No. 11, 11.2011, p. 3486-3499.

Research output: Contribution to journalArticle

@article{d944b13345724fb78668600007e53857,
title = "Corrosion protection of cold-rolled steel by zinc-rich epoxy paint coatings loaded with nano-size alumina supported polypyrrole",
abstract = "High porosity and intense galvanic function related low electrolytic barrier profile and fast delamination of zinc-rich paints (ZRPs) are addressed by the utilisation of intimately structured, highly dispersed, polypyrrole (PPy) deposited alumina particles (PDAPs) embedded zinc-rich hybrid paints. The more globular but less-packed structure type PPy-contained water-solvent-prepared PDAPs-composited hybrids comprising spherical zinc pigment at 70. wt.{\%}, provided moderate galvanic function with enhanced electrolytic barrier properties. In addition, the less globular structured but well-packed PPy-comprised aqueous ethanol-solvent-prepared PDAPs-composited hybrid coatings indicated highly efficient suppressed galvanic function and improved barrier properties, realising solid performance improvement over conventional ZRPs in immersion and salt-spray chamber tests. Furthermore, the application of highly dispersed PDAPs at a content of 3.2. wt.{\%} while PPy incorporated into zinc-rich hybrids at 0.16. wt.{\%} is proposed to result in emerging additional functionalities increasing long-term anticorrosive performance of ZRPs by inhibiting sacrificial and self-corrosion of zinc and scavenging oxidative radicals thereby hindering oxidative degradation of the organic binder.",
keywords = "A. Cold-rolled steel, A. Polypyrrole, B. RF GD OES, B. XPS, C. Cathodic protection, C. Hybrid paints",
author = "Andr{\'a}s Gergely and {\'E}va Pfeifer and I. Bert{\'o}ti and Tam{\'a}s T{\"o}r{\"o}k and E. K{\'a}lm{\'a}n",
year = "2011",
month = "11",
doi = "10.1016/j.corsci.2011.06.014",
language = "English",
volume = "53",
pages = "3486--3499",
journal = "Corrosion Science",
issn = "0010-938X",
publisher = "Elsevier Limited",
number = "11",

}

TY - JOUR

T1 - Corrosion protection of cold-rolled steel by zinc-rich epoxy paint coatings loaded with nano-size alumina supported polypyrrole

AU - Gergely, András

AU - Pfeifer, Éva

AU - Bertóti, I.

AU - Török, Tamás

AU - Kálmán, E.

PY - 2011/11

Y1 - 2011/11

N2 - High porosity and intense galvanic function related low electrolytic barrier profile and fast delamination of zinc-rich paints (ZRPs) are addressed by the utilisation of intimately structured, highly dispersed, polypyrrole (PPy) deposited alumina particles (PDAPs) embedded zinc-rich hybrid paints. The more globular but less-packed structure type PPy-contained water-solvent-prepared PDAPs-composited hybrids comprising spherical zinc pigment at 70. wt.%, provided moderate galvanic function with enhanced electrolytic barrier properties. In addition, the less globular structured but well-packed PPy-comprised aqueous ethanol-solvent-prepared PDAPs-composited hybrid coatings indicated highly efficient suppressed galvanic function and improved barrier properties, realising solid performance improvement over conventional ZRPs in immersion and salt-spray chamber tests. Furthermore, the application of highly dispersed PDAPs at a content of 3.2. wt.% while PPy incorporated into zinc-rich hybrids at 0.16. wt.% is proposed to result in emerging additional functionalities increasing long-term anticorrosive performance of ZRPs by inhibiting sacrificial and self-corrosion of zinc and scavenging oxidative radicals thereby hindering oxidative degradation of the organic binder.

AB - High porosity and intense galvanic function related low electrolytic barrier profile and fast delamination of zinc-rich paints (ZRPs) are addressed by the utilisation of intimately structured, highly dispersed, polypyrrole (PPy) deposited alumina particles (PDAPs) embedded zinc-rich hybrid paints. The more globular but less-packed structure type PPy-contained water-solvent-prepared PDAPs-composited hybrids comprising spherical zinc pigment at 70. wt.%, provided moderate galvanic function with enhanced electrolytic barrier properties. In addition, the less globular structured but well-packed PPy-comprised aqueous ethanol-solvent-prepared PDAPs-composited hybrid coatings indicated highly efficient suppressed galvanic function and improved barrier properties, realising solid performance improvement over conventional ZRPs in immersion and salt-spray chamber tests. Furthermore, the application of highly dispersed PDAPs at a content of 3.2. wt.% while PPy incorporated into zinc-rich hybrids at 0.16. wt.% is proposed to result in emerging additional functionalities increasing long-term anticorrosive performance of ZRPs by inhibiting sacrificial and self-corrosion of zinc and scavenging oxidative radicals thereby hindering oxidative degradation of the organic binder.

KW - A. Cold-rolled steel

KW - A. Polypyrrole

KW - B. RF GD OES

KW - B. XPS

KW - C. Cathodic protection

KW - C. Hybrid paints

UR - http://www.scopus.com/inward/record.url?scp=80052323063&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052323063&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2011.06.014

DO - 10.1016/j.corsci.2011.06.014

M3 - Article

AN - SCOPUS:80052323063

VL - 53

SP - 3486

EP - 3499

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

IS - 11

ER -