Hybrid Zinc-Rich Paint Coatings

The Impact of Incorporation of Nano-Size Inhibitor and Electrical Conducting Particles

András Gergely, Z. Pászti, I. Bertóti, J. Mihály, Eszetr Drotár, Tamás Török

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In this chapter, corrosion protection performance of hybrid zinc-rich paints (ZRPs) formulated with zinc at 70 and 80. wt.%, and nano-size particulates at 3.21 and 1.75. wt.% contents is analyzed. The nano-size filler phase was composed of polypyrrole supported with either alumina or alumina/multiwalled carbon nanotubes. Durability of the coatings was tested with immersion and salt-spray chamber propagations. Protection mechanism of the hybrid ZRPs is discussed regarding structural and electrical properties of the particles and paint dispersions. Hybrid ZRPs indicate firm barrier nature, moderate inhibition, and restrained active galvanic function to steel substrates. Hindered mass transport and limited water uptake through the low porosity hybrid coatings combined with three-dimensional arrangement of nano-size particles at the statistical and kinetic percolation thresholds are key factors to provide well-balanced and highly efficient combined, complex protection to low carbon steel substrates. Nevertheless, incorporation of inhibitor particles results in completely different fundamental properties from those typical of traditional ZRPs.

Original languageEnglish
Title of host publicationIntelligent Coatings for Corrosion Control
PublisherElsevier Inc.
Pages195-249
Number of pages55
ISBN (Print)9780124115347, 9780124114678
DOIs
Publication statusPublished - Oct 24 2014

Fingerprint

Corrosion inhibitors
Paint
Zinc
Coatings
Aluminum Oxide
Multiwalled carbon nanotubes (MWCN)
Steel
Low carbon steel
Corrosion protection
Substrates
Dispersions
Fillers
Structural properties
Electric properties
Durability
Mass transfer
Salts
Porosity
Particle size
Kinetics

Keywords

  • Carbon nanotubes
  • Cathodic protection
  • Nano-size additive
  • Polypyrrole
  • Zinc-rich coating

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Hybrid Zinc-Rich Paint Coatings : The Impact of Incorporation of Nano-Size Inhibitor and Electrical Conducting Particles. / Gergely, András; Pászti, Z.; Bertóti, I.; Mihály, J.; Drotár, Eszetr; Török, Tamás.

Intelligent Coatings for Corrosion Control. Elsevier Inc., 2014. p. 195-249.

Research output: Chapter in Book/Report/Conference proceedingChapter

Gergely, András ; Pászti, Z. ; Bertóti, I. ; Mihály, J. ; Drotár, Eszetr ; Török, Tamás. / Hybrid Zinc-Rich Paint Coatings : The Impact of Incorporation of Nano-Size Inhibitor and Electrical Conducting Particles. Intelligent Coatings for Corrosion Control. Elsevier Inc., 2014. pp. 195-249
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