Effect of concentration of DOC loaded TiO2 nanotubes on the corrosion behavior of smart coatings

Ubaid, Fareeha; Naeem, Nazal; Shakoor, Abdul; Kahraman, Ramazan; Mansour, Said; Zekri, Atef

doi:10.1016/j.ceramint.2019.02.111

Cited by 33 publications

(6 citation statements)

References 25 publications

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“…The ether (C–O–C) peaks can be observed in the range 1104–1000 cm –1 , and at 1295 cm –1 . The common peak for all of the coatings at 826 cm –1 represents the C–O–C stretching vibration, indicating the cross-linking reaction between epoxy and the amine curing agent . The peak at 1181 cm –1 represents the C–N bond of the amine curing agent.…”

Section: Results and Discussionmentioning

confidence: 99%

“…The common peak for all of the coatings at 826 cm −1 represents the C−O−C stretching vibration, indicating the cross-linking reaction between epoxy and the amine curing agent. 64 The peak at 1181 cm −1 represents the C−N bond of the amine curing agent. The C−OH bond, which is formed upon the opening of the epoxy rings during the curing process, can be observed by the broad peak in the 1270−1200 cm −1 region.…”

Section: Resultsmentioning

confidence: 99%

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Leaching Behavior and Corrosion Inhibition of a Rare Earth Carboxylate Incorporated Epoxy Coating System

Peng

Hughés

Mardel

et al. 2019

ACS Appl. Mater. Interfaces

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While paint coatings act as important barriers to corrosion, defects can lead to localized, rapid metal loss. The addition of corrosion inhibitors that are capable of leaching from a coating to protect the metal surface at a defect can prevent this type of corrosion. This work investigates the release and corrosion protection capabilities of two rare earth (RE) carboxylate inhibitors from an epoxy coating as an initial step to understanding their leaching behavior and interaction with the coating system. Leaching experiments were performed via inductively coupled plasma mass spectroscopy (ICP-MS) analyses of the solutions in which free-standing coatings loaded with varying concentrations of inhibitor compounds had been immersed. Inhibitor release from the epoxy coating was observed to be dependent on initial inhibitor concentration, inhibitor chemistry, and solution pH conditions. The coating systems with greater initial inhibitor loadings showed higher leaching rates, particularly in acidic environments. Following immersion, the absence of characteristic inhibitor peaks in the FTIR spectra of the coatings also confirmed leaching had taken place. Cross-sectional views of the coatings after exposure to the pH 1 environment presented a chloride infusion zone at the coating/solution interface where the inhibitor had leached out. The RE active inhibition provided by the leached RE carboxylate inhibitors was verified by exposure of a coating defect to a chloride contaminated environment.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Leaching Behavior and Corrosion Inhibition of a Rare Earth Carboxylate Incorporated Epoxy Coating System

Peng

Hughés

Mardel

et al. 2019

ACS Appl. Mater. Interfaces

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show abstract

“…In spectrum (a), the peaks at 1601 cm −1 , 1561 cm −1 and 1385 cm −1 can be attributed to the carboxyl (COO−) group of tartaric acid [23,32], and the well-defined shoulder at 1062 cm −1 belongs to C−OH bond in CeTar [23]. In spectra (b) and (c), the peaks at 1608 cm −1 corresponds to C=C stretch bond, and the peaks in the range of 1511 cm −1 to 1034 cm −1 (1511 cm −1 , 1462 cm −1 , 1242 cm −1 , 1034 cm −1 ) are ascribed to the C−H bonds, which are formed in the curing process of epoxy coating [18,33,34]. The peak at 1181 cm −1 represents the C−N bond of the amine curing agent, and the peak at 1295 cm −1 corresponds to the ether (C−O−C) group [32].…”

Section: Ftir Analysis Of the Coatingsmentioning

confidence: 98%

Effect of Cerium Tartrate on the Corrosion Resistance of Epoxy Coating on Aluminum Alloy and Its Mechanism

et al. 2022

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The inhibition effect and mechanism of cerium tartrate (CeTar) as a pigment in epoxy coating on AA2024-T3 aluminum alloy in 3.5% NaCl solution were studied. Two kinds of coatings were applied on the substrate, including a single-layer epoxy coating with CeTar distributed uniformly and a double-layer coating composed of an inner layer doped with CeTar and an outer layer with no CeTar. The protective performances of the coatings were assessed by a Machu test and an Electrochemical impedance spectroscopy (EIS) technique. The corrosion inhibition mechanism of CeTar in the coating was analyzed with X-ray photoelectron spectroscopy (XPS), inductively coupled plasma mass spectrometry (ICP-MS) and Fourier transform spectroscopy (FTIR). The results show that the addition of CeTar can evidently improve the protective performance of the epoxy coating for a long time (>520 d). This might have relationship with the modification effect on the epoxy coating by cerium salts, and also may be due to the synergistic inhibitory effect by tartrate group and cerium ions on the alloy substrate after their continuous releasing to the coating/alloy interface and forming of a protective film. The double-layer coating provides similar protective properties to the single-layer coating. This suggested that creating a protective film on the aluminum alloy substrate could result in a greater contribution to improving the protection performance of the coating.

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“…Hence, these leaves demonstrate high super-hydrophobicity. Various techniques such as chemical deposition [65] , casting, and chemical etching [66] , sol-gel procedure [67] , photo-lithography [68] , plasma modification [69] , templating [70] , and chemical vapor deposition (CVD) [71] , have undergone utilization in fabricating super-hydrophobic surfaces. Numerous investigations have demonstrated application of polymeric matrices, and PNCs in fabricating hydrophobic/superhydrophobic surfaces [72] , [73] , [74] , [75] .…”

Section: Anti-corrosion Coatingsmentioning

confidence: 99%

Recently Emerging Nanotechnological Advancements in Polymer Nanocomposite Coatings for Anti-corrosion, Anti-fouling and Self-healing

Idumah

Obele

Emmanuel

et al. 2020

Surfaces and Interfaces

123

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Effect of concentration of DOC loaded TiO2 nanotubes on the corrosion behavior of smart coatings

Cited by 33 publications

References 25 publications

Leaching Behavior and Corrosion Inhibition of a Rare Earth Carboxylate Incorporated Epoxy Coating System

Leaching Behavior and Corrosion Inhibition of a Rare Earth Carboxylate Incorporated Epoxy Coating System

Effect of Cerium Tartrate on the Corrosion Resistance of Epoxy Coating on Aluminum Alloy and Its Mechanism

Recently Emerging Nanotechnological Advancements in Polymer Nanocomposite Coatings for Anti-corrosion, Anti-fouling and Self-healing

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