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Title: Modification of graphene oxide by curcumin and application in polyurethane coating
Authors: Nguyen, Thuy Duong
Tran, Boi An
Phan, Thanh Thao
Vu, Ke Oanh
Nguyen, Anh Son
Nguyen, Tuan Anh
To, Thi Xuan Hang
Keywords: Graphene oxide
Corrosion protection
Polyurethane coatings
Issue Date: 2020
Series/Report no.: Vietnam Journal of Science and Technology;Vol.58(03) .- P.274-281
Abstract: Curcumin modified graphene oxide (GO-CR) was prepared using the adsorption method and polyurethane (PU) coating containing 0.3 wt% GO-CR was prepared on carbon steel. Synthesized GO-CR was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and zeta potential measurement. Corrosion protection property of polyurethane coating containing GO-CR was evaluated and compared with that of blank polyurethane coating and coating containing GO by electrochemical impedance spectroscopy. The results showed that GO-CR has a layer structure like GO with lower crystallinity. In GO-CR, structure curcumin was attached on GO surface. The presence of curcumin on GO-CR surface provided corrosion inhibition action for PU coating and also improved the dispersion of GO in PU coating.
ISSN: 2525-2518
Appears in Collections:Vietnam journal of science and technology

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