Reduced graphene oxide suspension with a comb copolymer and its effects on the corrosion resistance of hydroxyl polyacrylate coatings |
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| Authors: | Yue Hu Xinchuan Fan Xiaofeng Chen Jun Niu Ningyan Li Xinqiang Wang Dianyu Chen |
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| Affiliation: | 1. Chemical Engineering and material Science, College of Chemistry, Soochow University, Suzhou, 215123 People's Republic of China;2. Department of Chemistry and Material Engineering, Jiangsu Key Laboratory of Functional Materials, Changshu Institute of Technology, Changshu, 215500 People's Republic of China |
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| Abstract: | 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. |
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| Keywords: | applications coatings copolymers resins |
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