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

被引：37

作者：

Glover, C. F. ^{[1
]}

Richards, C. ^{[1
]}

Baker, J. ^{[1
]}

Williams, G. ^{[2
]}

McMurray, H. N. ^{[2
]}

机构：

[1] SPECIFIC, Baglan Innovat Ctr, Cent Ave,Baglan Energy Pk, Baglan SA12 7AX, Port Talbot, England

[2] Swansea Univ, Coll Engn, Mat Res Ctr, Bay Campus,Fabian Way, Swansea SA1 8EN, W Glam, Wales

来源：

CORROSION SCIENCE | 2017年 / 114卷

基金：

“创新英国”项目; 英国工程与自然科学研究理事会;

关键词：

Iron; Polymer; Atmospheric corrosion; Polymer coatings; SCANNING KELVIN PROBE; MECHANISTIC APPROACH; POLYMERIC COATINGS; ORGANIC COATINGS; DELAMINATION; STEEL; INHIBITION; DEFECT; LAYER;

D O I：

10.1016/j.corsci.2016.11.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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. (C) 2016 Published by Elsevier Ltd.

引用

页码：169 / 172

页数：4

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