A new approach for enhancement of the corrosion protection properties and interfacial adhesion bonds between the epoxy coating and steel substrate through surface treatment by covalently modified amino functionalized graphene oxide film

Parhizkar, Nafise; Shahrabi, T.; Ramezanzadeh, Bahram

doi:10.1016/j.corsci.2017.04.011

Cited by 239 publications

(107 citation statements)

References 54 publications

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“…The appearance of bands at 216 and 276 cm −1 was assigned to A 1g (1), Eg 2 +Eg 3 modes of Fe 3 O 4 , respectively. The Raman spectrum of Fe 3 O 4 did not show any peaks either at 1430 or 1580 cm −1 , which is typical for γ‐Fe 2 O 3 phase, substantiating our contention that no Fe 2 O 3 particles were formed in the prepared nanohybrid. The emergence of peaks at 1369 and 1582 cm −1 for Fe 3 O 4 ‐NRG was indexed to D and G band, respectively.…”

Section: Resultssupporting

confidence: 81%

“…Recent literature has seen surge of exploration using graphene and its derivatives as anti‐corrosive filler for epoxy coating. The most significant graphene based anti‐corrosion filler being studied are benzimidazole/cerium functionalized GO, p‐phenylenediamine functionalized GO, amino functionalized GO film, GO‐co montmorillonite nanoplatelets, GO nanosheets polyaniline/Zn cation, cerium cations absorbed GO, polyaniline cerium oxide coated GO . Though, the alluring properties have imputed graphene as a prominent filler, but the intricacy in ensuring mono or a few layers subsist of graphene layer in polymer matrix has impeded its complete transfer of those properties.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Fe₃O₄‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating

et al. 2019

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The present study explores the synergistic effect of Fe 3 O 4 and heteroatom doped reduced graphene oxide (rGO) nanohybrid on anti-corrosion performance of epoxy composite coating. In this connection, Fe 3 O 4 nanoparticles were decorated over nitrogen doped rGO (Fe 3 O 4 -NRG) and characterized by Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray diffraction (XRD), X-ray Photoelectron spectroscopy (XPS), and Thermogravimetric analysis (TGA). This approach to modulating the surface properties of graphene and hence the interaction with polymer matrix were quite distinct from traditional surface functionlization or decoration in a sense that the doped nitrogen atom facilitate the growth of Fe 3 O 4 particles and at the same time augmented the interaction of rGO with polymer matrix. The prepared nanohybrid was dispersed in epoxy matrix through mechanical mixing and coated over mild steel surface via spin coating technique. The potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) study revealed superior anti-corrosion performance of Fe 3 O 4 -NRG/epoxy coating in 3.5 wt% NaCl solution. The corrosion inhibition was found to improve by ∼ 98.5% with 0.5 wt% loading of Fe 3 O 4 -NRG. We believe that this simple solvent free approach to prepare composite coating can be exploit for practical application and thus deserves special attention..

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Section: Resultssupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Effect of Fe₃O₄‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating

et al. 2019

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“…In a variety of polymerized matrix organic coatings, epoxy was common industrial polymers which can protect metal from the corrosion of bad environment and act as a physical barrier due to hydrophilic hydroxyl groups and free volumes in their structure ,. However, solvent volatilization or mechanical damage during coating curing would produce micro‐pores, micro‐cracks and cavities which lead to a decline in barrier properties of coating . In order to overcome this problem, various kinds of pigments and fillers were added and fixed into the crack and pore of the coating matrix.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Corrosion Resistance of Epoxy Coatings by Impregnation with a Reduced Graphene Oxide‐Hydrophobic Ionic Liquid Composite

Wang

Zhang

et al. 2018

ChemElectroChem

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Conventional epoxy resin fails as corrosion protection in long‐term soaking in water as pores are developing. Here, a modified epoxy coating with enhanced corrosion resistance was fabricated by impregnation with functionalized reduced graphene oxide‐hydrophobic ionic liquid (RGO‐IL) nano composites. The modified RGO was characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT‐IR), electrochemical impedance spectroscopy and simulated immersion experiments. Compared to epoxy resin (ER) coatings without RGO‐IL nano composites, the ER with RGO nano composites showed higher hydrophobicity in contact angle tests. In electrochemical experiments on Q235 substrates coated with the RGO‐IL/ER composite, enhanced barrier properties and excellent corrosion protection was found. A more hydrophobic interface was built, and the nano composite material of RGO‐IL was easy to prepare and cost efficient. We speculated that the presence of the ionic liquids also improves the dispersion properties of RGO in ER, and thereby further improving its barrier effect. In addition, the hydrophobic ionic liquid itself had a hindrance to water molecules and chloride ions. The highlight of our work is the combination of the corrosion inhibition of the hydrophobic ionic liquids with the barrier effect of RGO.

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“…Zhang et al studied the long‐term corrosion behavior of the Fe‐based amorphous alloy and found the corrosion resistance of the coating is highly associated with the porosity ratio. Besides, to effectively improve the long‐term corrosion protection, many kinds of nanoparticles (graphene oxide, hexagonal boron nitride, titanium dioxide, etc) have been attempted to add into the coatings and the results indicate the addition of nanomaterials has indeed improved the coating performance . However, the long‐term effectiveness and the failure mechanism of CBPCs are still not known with certainty.…”

Section: Introductionmentioning

confidence: 99%

The long‐term effectiveness and failure mechanism of the chemically bonded phosphate ceramic coatings with different thickness

Liu

Bian

2019

Int J Applied Ceramic Tech

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In this study, the chemically bonded phosphate ceramic coatings (CBPCs) with different thickness (100 µm, 200 µm, and 300 µm) are prepared on the mild steel (Q235). Potentiodynamic polarization testing and electrochemical impedance spectroscopywere carried out to study the synthetic effect of coating thickness and etching time (12,24,36, and 48 hours) on the corrosion behavior of CBPCs. The surface and cross section microstructure of CBPCs before and after different immersion time in 3.5 wt.% NaCl solution is investigated to better understand the corrosion behavior.Results revealed that the enhanced coating thickness can effectively postpone the corrosive factors infiltration into the substrate and prohibit the corrosion of the mild steel. From the potentiodynamic polarization testing results, the protection efficiency of the coating greatly increases with the increase in etching time. In addition, an increase in 10 000 and 1000 orders of magnitude of impedance value for the CBPCs with 12 hours and 48 hours etching time has been observed, respectively, indicating the CBPCs can effectively protect the mild steel from corrosion damage even with long-term service. K E Y W O R D Schemically bonded phosphate ceramic coatings, coating thickness, corrosion performance, etching time, mild steel

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A new approach for enhancement of the corrosion protection properties and interfacial adhesion bonds between the epoxy coating and steel substrate through surface treatment by covalently modified amino functionalized graphene oxide film

Cited by 239 publications

References 54 publications

Effect of Fe₃O₄‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating

Effect of Fe₃O₄‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating

Enhancing the Corrosion Resistance of Epoxy Coatings by Impregnation with a Reduced Graphene Oxide‐Hydrophobic Ionic Liquid Composite

The long‐term effectiveness and failure mechanism of the chemically bonded phosphate ceramic coatings with different thickness

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A new approach for enhancement of the corrosion protection properties and interfacial adhesion bonds between the epoxy coating and steel substrate through surface treatment by covalently modified amino functionalized graphene oxide film

Cited by 239 publications

References 54 publications

Effect of Fe3O4‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating

Effect of Fe3O4‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating

Enhancing the Corrosion Resistance of Epoxy Coatings by Impregnation with a Reduced Graphene Oxide‐Hydrophobic Ionic Liquid Composite

The long‐term effectiveness and failure mechanism of the chemically bonded phosphate ceramic coatings with different thickness

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Product

Resources

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Effect of Fe₃O₄‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating

Effect of Fe₃O₄‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating