A Review of the Application of Two-dimensional Nanosheets as a Reinforcement to Increase the Corrosion Resistance of Polymer Coatings

The water-resistant polymer coating has attracted much attention due to its low toxicity, low volatile organic compounds, and outstanding chemical resistance. Despite these advantages, the microporous defects and polar channels that are formed during the curing process lead to O2</sub>, H2</sub>O, and Cl</em>-</sup></em> being sent to the metal substrates and cause blistering of the coating and loss of adhesion in the coatings, and as a result, the properties of the barrier coating are reduced. Participating nanofillers in a polymer resin to reduce coating defects is an effective method. Epoxy matrices with layered nano-plates as reinforcement have recently attracted significant attention in scientific research and practical applications due to their excellent mechanical performance, barrier against gas factors, and thermal conductivity. In general, enhanced barrier function in corrosive environments provides excellent corrosion prevention. In this regard, in this article, the effects of graphene oxide nanosheets, graphene, graphite fluoride, carbon nitride, boron nitride, boron carbonitride, LDHs, and Mxene are investigated.</em>