Corrosion Resistance of Graphene-Reinforced Waterborne Epoxy Coatings. Issue 5 (May 2016)

• Record Type: Journal Article
• Authors: Liu, Shuan; Gu, Lin; Zhao, Haichao; Chen, Jianmin; Yu, Haibin
• Is Part Of: Journal of materials science & technology. Volume 32:Issue 5(2016:May)
• Page Start: 425
• Page End: 431
• Publication Date: 2016-05
• Subjects: Waterborne epoxy coating -- Graphene -- Corrosion resistance -- Electrochemical impedance spectroscopy (EIS); Metals -- Periodicals; Materials science -- Periodicals; Materials science; Metals; Periodicals; 620.1105
• DOI: 10.1016/j.jmst.2015.12.017
• Languages: English
• ISSNs: 1005-0302

Abstract

Abstract : Graphene (G) was dispersed uniformly in water and used as an inhibitor in waterborne epoxy coatings. The effect of dispersed G on anticorrosion performance of epoxy coatings was evaluated. The composite coatings displayed outstanding barrier properties against H2 O molecule compared to the neat epoxy coating. Open circuit potential (OCP), Tafel and electrochemical impedance spectroscopy (EIS) analysis confirmed that the corrosion rate exhibited by composite coatings with 0.5 wt% G was an order of magnitude lower than that of neat epoxy coating. Salt spray test results revealed superior corrosion resistance offered by the composite coating.