Reinforcing the corrosion protection properties of epoxy coatings
A new type of modified graphene oxide coating that was prepared by anchoring a prepolymer of urea-formaldehyde resin onto the graphene oxide sheets through in situ polycondensation showed a surprising effect.
The modified graphene oxide (GO) sheets were characterised by scanning electron microscopy, transmission electron microscopy, X-ray diffraction experiment, Fourier transforms infrared spectroscopy, sedimentation test, and electrochemical impedance spectroscopy.
Reinforced corrosion protection
One major finding was that the superior compatibility of UF resin with the epoxy resin retained the high dispersion of modified GO sheets in polymer matrix. Results further revealed that the modified GO sheets significantly reinforced the corrosion protection properties of epoxy coatings on carbon steel substrate.
The study is published in: Corrosion Science, Volume 123, 15 July 2017, Pages 267–277
