A Sustainable and Eco‐Friendly Polymer Based Graphene Oxide Nanocomposite Anti‐Corrosion Coating on Mild Steel

Abstract

An eco-friendly polymer-based nanocomposite coating on mild steel (MS) surface was prepared using Garcinia indica vegetable oil (GIVO). Graphene oxide (GO) was synthesized by the modified Hummers method and used to prepare Garcinia indica vegetable oil-Graphene oxide (GIVO-GO) dispersion. The anti-corrosion coating of GIVO and GIVO-GO dispersion was studied by electrochemical methods. GO, GIVO and GIVO-GO are characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR) and Raman spectral studies. The coated MS samples are examined by scanning electron micro-scopy (SEM), atomic force microscopy (AFM), XRD and water contact angle measurement. Electrochemical investigations revealed that incorporation of GO into GIVO reduced the corrosion rate of MS to around 600 times with 0.4 wt % of GO compared to the GIVO coated sample. The enhancement of the corrosion prevention behavior of GO incorporated coating is discussed based on the impermeable action of GO to the corrosive ions and also the reduction of pores in the polymer that are formed during the curing of the coating.

Mn(II)‐ and Zn(II)‐ Based Nanocomposites Metallopolymer for Corrosion Protective Coatings

“…30 nm. Metallic Zn/Mn has similar size (Zn-0.138 > Mn-0.127 nm) so the variation in the distribution and arrangement of nanostructures within the NMP could be assigned to the non-similar d-orbital electron (d 5 and d 10 ) and hence, the interactions with the polymeric ligands. The TEM images clearly revealed the incorporation of inorganic ChemistrySelect component in the organic matrix as well as the relatively much smaller size of the distributed nanostructure for Mn compared to Zn.…”

“…[3,7] The dispersion of inhibitors, and inorganic/organic nanostructures (fibers, nanoparticles, sheets) have also been reported to improve the physicomechanical and corrosion protection abilities. [8][9][10] The distribution of metal/metal oxide nanoparticles (ZnO, Al 2 O 3 , MnO, NiO, SiO 2 , TiO 2 , etc.) or metal oxide-containing and modified nanoparticles is known for their ability to improve the corrosion resistance, dielectric, AC conductivity, stability, thermal, and glass transition temperature of the material.…”

“…The blending of biopolymers with synthetic polymers is a conventional route to improve the chemical and mechanical properties of biopolymers [3,7] . The dispersion of inhibitors, and inorganic/organic nanostructures (fibers, nanoparticles, sheets) have also been reported to improve the physicomechanical and corrosion protection abilities [8–10] . The distribution of metal/metal oxide nanoparticles (ZnO, Al 2 O 3 , MnO, NiO, SiO 2 , TiO 2 , etc.)…”

Experimental Investigations of AlMg3 Components with Polyurethane and Graphene Oxide Nanosheets Composite Coatings, after Accelerated UV-Aging

“…Recently, graphene (Gr–planar sheet of carbon atoms, arranged in a hexagonal lattice with the thickness of one atom) and other graphene-based materials: carbon nanotubes (CNTs) and graphene oxide (GO) have found to be a helpful additive. They are able to improve the protection of metals suitable for structural components used in aerospace, automotive, and defence industries; construction of boats, oil pipelines and other metal structure equipment; and acting as a barrier for the diffusion of corrosive species (H 2 O, O 2 , Cl − ) [ 14 , 15 , 16 ]. It has been found in [ 17 ] that in the case where the content of Gr is increased to 8 wt%, the friction coefficient of PU/Gr composite coating is 61% lower than of conventional coating.…”

Recent Advances in Graphene Oxide-Based Anticorrosive Coatings: An Overview

“…Organic coatings came as an efficient solution to protect the metallic substrates by building a physical border between them and the environmental conditions that sustain the deterioration of the reactive materials [9]. However, there are still some deficiencies such as local defects, pinholes, microcracks, or pores, which can allow the small ions to diffuse within the polymeric coating and induce the corrosion [10,11].…”