Fabrication and characterization of graphene-reinforced waterborne polyurethane nanocomposite coatings by the sol-gel method

► Graphene was covalently incorporated into polyurethane coatings by sol-gel method. ► The graphene-based nanocomposite coatings were fabricated in aqueous solution. ► Effective reinforcement on mechanical and thermal properties of polyurethane coatings.