期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 138, 期 3, 页码 -出版社
WILEY
DOI: 10.1002/app.49689
关键词
coatings; electrochemistry; graphene and fullerenes; nanotubes; surfaces and interfaces
资金
- National Key R&D Program of China [2019YFD1101200, 2019YFD1101204]
- Natural Science Foundation of China [51772150]
- Key Research and Development Program of Jiangsu Province [BE2017006-4, BE2018008-1]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
The modified graphene oxide-silica (M-rGO/SiO2) nanocomposite filler, prepared with a coupling agent, showed excellent dispersion in the FEVE coating and extended the corrosion path efficiently. The M-rGO/SiO2-reinforced FEVE coating exhibited enhanced anti-corrosion properties with a high protection efficiency of up to 95.18% maintained over a 30-day test cycle.
Reduced graphene oxide-silica (rGO/SiO2) nanocomposite filler was prepared with a ball milling process and then modified using a coupling agent of NH2C3H6Si(OC2H5)(3)(KH-550) to improve its dispersion in the fluoroethylene vinyl ether (FEVE) coating. The surface properties and morphologies of the modified rGO/SiO2(M-rGO/SiO2) nanocomposite filler and M-rGO/SiO2-reinforced FEVE coating were characterized by using Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). Electrochemical impedance spectroscopy (EIS) and Tafel polarization curves were applied to illustrate the corrosion resistance of the coating. The results showed that the M-rGO/SiO(2)composite can disperse well in the coating and efficiently extend the corrosion path, enhancing the anti-corrosion property of the FEVE coating. Therefore, the |Z|(0.01 Hz)of M-rGO/SiO(2)reinforced FEVE coating maintained at around 10(10) omega center dot cm(2)in the 30 days test cycle and a protection efficiency of up to 95.18% was achieved.
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