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Open AccessArticle

Phytic Acid Intercalated Graphene Oxide for Anticorrosive Reinforcement of Waterborne Epoxy Resin Coating

by Na Wang 1,2,*, Huiying Gao 1, Jing Zhang 1, Ye Qin 1,* and Deyi Wang 3
1
Sino-Spanish Advanced Materials Institute, Shenyang University of Chemical Technology, Shenyang 110142, China
2
Advanced Manufacturing Institute of Polymer Industry (AMIPI), Shenyang University of Chemical Technology, Shenyang 110142, China
3
IMDEA Materials Institute, C/Eric Kandel 2, 28906 Getafe, Madrid, Spain
*
Authors to whom correspondence should be addressed.
Polymers 2019, 11(12), 1950; https://doi.org/10.3390/polym11121950
Received: 15 October 2019 / Revised: 18 November 2019 / Accepted: 26 November 2019 / Published: 27 November 2019
Epoxy resin coatings were prepared with phytic acid-doped graphene oxide (PA-GO) to modify epoxy resins (EP). The aim was to improve the dispersion of GO in waterborne epoxy resin, and thus to improve the corrosion resistance of steel structures. The Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) results showed that PA-GO was successfully prepared and has a better dispersion in epoxy resin. This is mainly due to the PA insert, which increased the layer spacing of the GO. The results obtained under the controlled corrosive environment showed that the specimen coated with EP containing 1.0 wt.% PA-GO had better corrosion resistance than other samples. This resistance was also two orders of magnitude higher than pure epoxy coating. The main reason for this is that the dispersion of GO in waterborne epoxy resin had been improved.
Keywords: Waterborne epoxy coating; electrochemical impedance spectroscopy; anticorrosion; Phytic acid; Graphite oxide Waterborne epoxy coating; electrochemical impedance spectroscopy; anticorrosion; Phytic acid; Graphite oxide
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MDPI and ACS Style

Wang, N.; Gao, H.; Zhang, J.; Qin, Y.; Wang, D. Phytic Acid Intercalated Graphene Oxide for Anticorrosive Reinforcement of Waterborne Epoxy Resin Coating. Polymers 2019, 11, 1950.

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