期刊
POLYMERS
卷 12, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/polym12040837
关键词
graphene oxide; titanium dioxide; 3-isocyanatopropyltrimethoxysilane; epoxy; modification; anti-corrosion
资金
- Key Research & Development Program of Shandong Province [2019JZZY010355]
In this paper, the graphene oxide loaded with nano titanium dioxide (TiO2-GO) was synthesized through 3-isocyanatopropyltrimethoxysilane (IPTMS) and characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and dispersion test. The results illustrated our modification was successful and TiO2-GO was transferred from hydrophilic to hydrophobic. That greatly enhanced the dispersity of TiO2-GO in epoxy through the observation of the coating morphology test. Moreover, the impact of TiO2-GO on anti-corrosion property in epoxy was investigated by Electrochemical Impedance Spectroscopy (EIS). Comparing to pristine particles including GO and TiO2, TiO2-GO could more significantly improve the resistance of corrosion with the help of IPTMS. Furthermore, the anti-corrosion mechanism of TiO2-GO in epoxy was tentatively proposed and discussed.
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