Recent advances and future perspectives for carbon nanostructures reinforced organic coating for anti-corrosion application

Abstract

Abstract In this review, the recent advances in the progress of corrosion protective organic coatings containing different kinds of carbon-based nanofillers for the corrosion mitigation of metallic substrates in the chloride solution are summarized. The organic nanocomposite coatings have opened a new field of research for obtaining low-cost coatings with enhanced performance, lifetime, and tailored properties. One of the main advantages of adding carbon nanostructurs to protective organic coatings, is their high barrier performance in corrosion resistance at relatively small amounts of nanofillers. Moreover, these corrosion protective coatings can be utilized in more slender thickness, which lower the expenses. For these reasons, they are considered versatile fillers for polymer matrices. In the following review, the application of the most available carbon-based nanofillers, graphene (G), graphene oxide (GO), carbon nanotube (CNT), and carbon black (CB), carbon nanofiber (CNF), and carbon quantum dot (CQD) in the organic coatings for promotion of corrosion protection performance is investigated. The advantages and disadvantages of fillers introduced for anti-corrosion applications are also discussed, and the best filler is selected from the carbon compounds added.