Preparation of PANI/epoxy/Zn nanocomposite using Zn nanoparticles and epoxy resin as additives and investigation of its corrosion protection behavior on iron

► Preparation of polyaniline/epoxy/zinc nanocomposite coating. ► As a novel idea, application of epoxy resin as additives in polyaniline/zinc coating to improve its mechanical and anticorrosive properties. ► Investigation of anticorrosive properties of polyaniline/epoxy/zinc nanocomposite coating on iron. ► The synergetic anticorrosive behavior of polyaniline, epoxy resin and zinc nanoparticles.