Investigation into the Effect of Cr2O3 Nanoparticles on the Protective Properties of Epoxy Coatings on Carbon Steel in 3.5% NaCl Solution by Scanning Electrochemical Microscopy

Raj, X. Joseph

doi:10.1134/s2070205119010167

Cited by 24 publications

(5 citation statements)

References 17 publications

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“…Diverse materials for corrosion protection were produced and found from the restrained nature of the corrosion effect, such as evading O 2 and H 2 O diffusion onto the metal composite surface and hindering metal oxidation. Significant study of the mechanism of corrosion protection with nanocomposite materials can be categorized as follows: (i) the high surface energy owing to nanomaterials system guides the creation of appropriate surface irregularity and hydrophobic surfaces at the top of the Epoxy/1.8 ZnO-NiO coating, and (ii) the formation of an adjacent interconnecting structure with tough adhesion at the coating-composite interface [54][55][56][57][58].…”

Section: Corrosion Inhibition Mechanismmentioning

confidence: 99%

Enhanced Corrosion Protection of Epoxy/ZnO-NiO Nanocomposite Coatings on Steel

et al. 2020

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ZnO-NiO nanocomposite with epoxy coating on mild steel has been fabricated by the sol–gel assisted method. The synthesized sample was used to study corrosion protection. The analysis was performed by electrochemical impedance spectroscopy in 3.5% NaCl solution. The structural and morphological characterization of the metal oxide nanocomposite was carried out using XRD and SEM with Energy Dispersive Absorption X-ray (EDAX) analysis. XRD reveals the ZnO-NiO (hexagonal and cubic) structure with an average ZnO-NiO crystallite size of 26 nm. SEM/EDAX analysis of the ZnO-NiO nanocomposite confirms that the chemical composition of the samples consists of: Zn (8.96 ± 0.11 wt.%), Ni (10.53 ± 0.19 wt.%) and O (80.51 ± 3.12 wt.%). Electrochemical Impedance Spectroscopy (EIS) authenticated that the corrosion resistance has improved for the nanocomposites of ZnO-NiO coated along with epoxy on steel in comparison to that of the pure epoxy-coated steel.

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Section: Corrosion Inhibition Mechanismmentioning

confidence: 99%

Enhanced Corrosion Protection of Epoxy/ZnO-NiO Nanocomposite Coatings on Steel

et al. 2020

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“…The mild steel material was used for food equipment manufacturing purposes because it has good mechanical properties like its strength, ductility, and weldability 1,2,3 . Corrosion of steel is considered as a sustained matter that attracted interest as it is the main cause of industrial accidents and also the consumption of metal resources 4,5,6,7 . Metal with polymeric composite barrier liners was used to reduce oxygen and moisture diffusion produced in food packaging 6,8 .…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the transparency of the polymeric coating will not be disturbed with the existence of nanoparticles with dimensions less than100 nm 18 . The anticorrosion performance and mechanical properties of metals are highly improved by the incorporation of metal oxide nanofillers to epoxy matrices 5,9,19,20 . In addition, alumina (Al 2 O 3 ) fillers characterized by their high mechanical properties have been widely used to enhance related properties of epoxy matrices 4 .…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Barrier and Mechanical Performance of Steel Coated with Epoxy Filled with Micron and Nano Alumina Fillers

et al. 2022

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Steel is an essential part of our life as it is used in wide applications as food equipment and heavy construction. The polymeric coating prevents the deterioration of the properties of metals due to rust and corrosion. This study investigated a reinforced polymeric coating to steel for enhancing barrier and mechanical properties. A comparison between different configurations of double-layered polymeric coatings was attained. The results showed that a maximum enhancement of 16.7%, 18.9%, 32.6%, 8.5%, and 5.7% in tensile strength, tensile strain, toughness, flexural strength, and flexural strain, respectively were achieved with a coating of epoxy filled with 1wt% Al 2 O 3 microparticles before 1wt% Al 2 O 3 nanoparticles on both sides as compared with pure epoxy coating. Adding micro/nanoparticles to epoxy coating enhanced the barrier properties of the coated steel against salt solution and citric acid environment as compared to pure epoxy coated steel.

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“…The addition of nanoparticles to a polymer is extremely beneficial for improving the behaviour of polymers used in various sectors. The presence of polymer nanocomposite components in the nanoparticles greatly reduced hostile electrolyte penetration into the metal/alloy-coating contact (Xavier, 2018; Joseph Raj, 2019).…”

Section: Introductionmentioning

confidence: 99%

Effect of reinforcement of mixed metal oxide nanoparticles in polyurethane resin for barrier and dynamic mechanical properties of steel structures

Xavier

2022

ACMM

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Purpose This study aims to study the effect of the reinforcement of mixed CeO2-ZrO2 nanoparticles in the polyurethane (PU) for protection properties of steel structures. Design/methodology/approach Electrochemical techniques were used to study the anticorrosion properties of the generated PU/CeO2-ZrO2 nanocomposite coated steel. Dynamic mechanical testing was done to investigate the mechanical properties. Findings In natural seawater, Electrochemical impedance spectroscopy experiments indicated outstanding protective behaviour for the PU/CeO2-ZrO2-coated steel. The coating resistance of the PU/CeO2-ZrO2 nanocomposite coating was found to be roughly 30% greater than that of the PU coating. Scanning electron microscopy with energy dispersive X-ray spectroscopy and X-ray diffraction analyses of the coated steel surface revealed that the CeO2-ZrO2 was accumulated at the corrosion products, preventing the corrosion. Dynamic mechanical analysis revealed that when the nanoparticle concentration was 3 Wt.%, the PU/CeO2-ZrO2 nanocomposite coating had improved dynamic mechanical parameters. Originality/value The coating resistance of the PU/CeO2-ZrO2 nanocomposite was determined to be 2999.17 kΩ.cm2. The perceived current by scanning electrochemical microscopy analysis across the PU/CeO2-ZrO2 coating was 1.7 nA. The PU/CeO2-ZrO2 nanocomposite had a good hydrophobic behaviour (WCA: 101o). The newly synthesised PU/CeO2-ZrO2 composite offered great barrier and mechanical properties, preventing material degradation and increase the lifespan of the coated steel. Hence, this form of coating could be used as a viable coating material for industrial purposes.

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Investigation into the Effect of Cr2O3 Nanoparticles on the Protective Properties of Epoxy Coatings on Carbon Steel in 3.5% NaCl Solution by Scanning Electrochemical Microscopy

Cited by 24 publications

References 17 publications

Enhanced Corrosion Protection of Epoxy/ZnO-NiO Nanocomposite Coatings on Steel

Enhanced Corrosion Protection of Epoxy/ZnO-NiO Nanocomposite Coatings on Steel

Enhancement of Barrier and Mechanical Performance of Steel Coated with Epoxy Filled with Micron and Nano Alumina Fillers

Effect of reinforcement of mixed metal oxide nanoparticles in polyurethane resin for barrier and dynamic mechanical properties of steel structures

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