Highly dispersed graphene oxide-zinc oxide nanoclutter in epoxy coatings.

A new study focuses on highly dispersed graphene oxide-zinc oxide nanoclutters in epoxy coatings with improved water resistance and corrosion resistance.
epoxy (EP) coating, which prevents corrosion, fails prematurely because its cross-linking network is porous due to the presence of hollow space throughout the network, resulting in poor water resistance.
new study introduces a new method that uses the stable surface properties of zinc oxide (ZnO) to promote the dispersion of graphene oxide (GO) sheets in epoxy coatings, improving water resistance and corrosion resistance

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GO-ZnO nanoclutter successfully formed
using (3-aminopropyl) triethylsilane as a couple of agents to decorate ZnO nanoparticles (ZnO NPs) on the GO board. As demonstrated by Fourier's transformation of infrared spectroscopy and X-ray photoelectronic energy spectrum analysis, GO-ZnO nanoclutters have been successfully formed. The field-to-emission scanning electron microscope and energy dispersion X-ray spectroscopy confirmed that the GO-ZnO sheet was well dispersed in the epoxy substrate, with no apparent reunification. From the results of X-ray diffraction analysis, it can be seen that the space between GO boards is expanded by decorating GO with ZnO NPs, thus improving the stripping and compatibness of epoxy substrate.
Based on studies and symptoms, good dispersion of GO-ZnO nanoclutters in epoxy coatings improves water resistance, as well as adhesion and corrosion protection, compared to pure epoxy (EP) and GO-epoxy coatings.
the study has been published in the Journal of Coating Technology and Research, January 2020, volume 17, No. 1.
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