Effect of graphene nanoplatelets on flame retardancy and corrosion resistance of epoxy nanocomposite coating Academic Article uri icon

abstract

  • Various concentrations of graphene nanoplatelets (GNP) i.e. 0.2, 0.4, 0.6, 0.8 and 1.0 wt. % were incorporated into the epoxy resin by sonication technique and mechanical agitation process. Limiting oxygen index (LOI) test and thermogravimetric analysis (TGA) indicated that the presence of GNP greatly enhanced the flame retardancy properties of the epoxy coating. Salt spray results obtained suggested that the addition of GNP enhanced corrosion performance and reducing the water absorption in comparison with pristine epoxy coating. Adhesion (cross-cut test) revealed that the presence of GNP showed great adhesion to substrates. Incorporation of 0.8 wt. % GNP exhibited the superior anticorrosion performance, great adhesion to subtract, and the lowest water uptake among other samples.

authors

  • Kabeb, Siti Maznah
  • Hassan, Azman
  • Mohamad, Zurina
  • Sharer, Zalilah
  • Mokhtar, Munirah
  • Ahmad, Faiz

publication date

  • 2019

number of pages

  • 4

start page

  • 543

end page

  • 547

volume

  • 15

issue

  • 4