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Reduced graphene oxide suspension with a comb copolymer and its effects on the corrosion resistance of hydroxyl polyacrylate coatings
Author(s) -
Hu Yue,
Fan Xinchuan,
Chen Xiaofeng,
Niu Jun,
Li Ningyan,
Wang Xinqiang,
Chen Dianyu
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48898
Subject(s) - graphene , materials science , fourier transform infrared spectroscopy , dielectric spectroscopy , raman spectroscopy , oxide , acrylate , scanning electron microscope , copolymer , chemical engineering , x ray photoelectron spectroscopy , dispersant , styrene , corrosion , tafel equation , polymer chemistry , composite material , electrochemistry , nanotechnology , chemistry , polymer , dispersion (optics) , optics , physics , electrode , engineering , metallurgy
A comb copolymer (CC) is designed and prepared in present article, by grafting epoxy resin (E‐20) on poly(styrene‐ co ‐acrylate). The CC is used as a special dispersant, which leads to a stabilizable reduced graphene oxide (rGO) suspension in organic coatings. The dispersing mechanism is deduced as π‐π attraction between CC and rGO, which is supported by the analysis data of Fourier transform infrared (FTIR) spectra, Raman spectroscopy, scanning electron microscope, transmission electron microscope, and X‐ray photoelectron spectroscopy. The corrosion resistance of CG suspension is determined by electrochemical impedance spectroscopy, the results implies that the anti‐corrosion behavior performed obviously, and protective efficiency is up to 99.53% in Tafel analysis. © 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48898.