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In-coating graphene nano-platelets for environmentally-friendly corrosion protection of iron

C.F. Glover, C. Richards, Jenny Baker Orcid Logo, Geraint Williams Orcid Logo, Hamilton McMurray

Corrosion Science, Volume: 114, Pages: 169 - 172

Swansea University Authors: Jenny Baker Orcid Logo, Geraint Williams Orcid Logo, Hamilton McMurray

Abstract

A primer coating system adherent to iron substrates based on graphene nano-platelets (GNPs) dispersed in polyvinylbutyral (PVB) is presented. Using a scanning Kelvin probe (SKP), the composite coatings are shown to exhibit exceptional resistance to an important corrosion-driven failure process, name...

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Published in: Corrosion Science
ISSN: 0010-938X
Published: 2017
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa31106
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Abstract: A primer coating system adherent to iron substrates based on graphene nano-platelets (GNPs) dispersed in polyvinylbutyral (PVB) is presented. Using a scanning Kelvin probe (SKP), the composite coatings are shown to exhibit exceptional resistance to an important corrosion-driven failure process, namely cathodic delamination, when aqueous chloride electrolyte is introduced to a penetrating coating defect. Delamination rate kinetics are shown to correlate strongly with reductions in the rate of oxygen permeation through the coating with increasing GNP pigment volume fraction.
College: College of Engineering
Start Page: 169
End Page: 172