CeO2 grafted carbon nanotube via polydopamine wrapping to enhance corrosion barrier of polyurethane coating

Cai, Guangyi; Xiao, Song; Deng, Chunming; Jiang, Dan; Zhang, Xinxin; Dong, Zehua

doi:10.1016/j.corsci.2020.109014

Cited by 95 publications

(25 citation statements)

References 57 publications

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“…On the other hand, recent studies have proven that incorporating CNT and GO could enhance barrier corrosion protection by prolonging the diffusion path of corrosive agents. 42 Furthermore, between the mentioned carbonaceous materials, multi-walled CNT has shown higher Young's modulus in the order of 1.8 ± 0.9 TPa compared with 1 ± 0.1 TPa of graphene. 43 Thus, incorporating multi-walled CNT improves the barrier and reinforces the mechanical properties of polymer nanocomposites.…”

Section: Introductionmentioning

confidence: 98%

“…However, the only drawback of COFs in organic coatings might be their poor barrier properties (due to their high porosity) against electrolyte penetration. On the other hand, recent studies have proven that incorporating CNT and GO could enhance barrier corrosion protection by prolonging the diffusion path of corrosive agents . Furthermore, between the mentioned carbonaceous materials, multi-walled CNT has shown higher Young’s modulus in the order of 1.8 ± 0.9 TPa compared with 1 ± 0.1 TPa of graphene .…”

Section: Introductionmentioning

confidence: 99%

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Ultrastable Porous Covalent Organic Framework Assembled Carbon Nanotube as a Novel Nanocontainer for Anti-Corrosion Coatings: Experimental and Computational Studies

Keshmiri

Najmi

Ramezanzadeh

et al. 2022

ACS Appl. Mater. Interfaces

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Covalent organic frameworks (COFs) have been proposed as a wholly organic architecture sharing high crystallinity, porosity, and tuneability. Moreover, they exhibit highly stable structures against harsh chemical environments, including boiling water, strong acids and bases, and oxidation and reduction conditions, making them good candidates for extreme conditions. For the first time, a porous COF structure based on terephthalaldehyde and melamine was synthesized and employed as a novel nanocontainer for hosting corrosion inhibitors to provide a coating with superior active/passive anti-corrosion properties. In this study, the multiwalled carbon nanotube was utilized as a platform for growing COF (CC) to improve the coating's barrier and thermo-mechanical properties. The zinc cations were loaded into the CC structure (called CCZ) as one of the most promising inhibitors for mild steel. The COF-based nanoparticles' characterization was done by Fourier transform infrared, Raman, X-ray diffraction, thermogravimetric analysis, Brunauer−Emmett−Teller, field emission scanning electron microscopy, and transmission electron microscopy (TEM) techniques. Moreover, the Density functional theory modeling and molecular dynamics simulation quantitatively highlighted the adsorption propensity of the investigated COF structures onto the oxidized CNT-based nanostructures and the interactions of epoxy with these nanostructures. The CCZ nanoparticles (NPs) showed 75% inhibition efficiency in saline solution and 418 ppm zinc ions release after 24 h at acidic pH. The CCZ/EP coating revealed the smart release of inhibitor for 24 h and represented excellent barrier properties after 9 weeks of immersion in saline solution. In terms of mechanical properties, the elastic modulus values derived from the dynamic mechanical thermal analyzer were enhanced by 107 and 137% in CC/EP and CCZ/EP samples compared to the neat epoxy. Furthermore, the yield stress and breakpoint elongation were strengthened by 102 and 63% for the CC/EP sample, respectively. Finally, the highest pull-off adhesion strength in dry (8.53 MPa) and wet (2.7 MPa) conditions, along with the lowest adhesion loss (68.3%), was related to the CCZ/EP sample.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Ultrastable Porous Covalent Organic Framework Assembled Carbon Nanotube as a Novel Nanocontainer for Anti-Corrosion Coatings: Experimental and Computational Studies

Keshmiri

Najmi

Ramezanzadeh

et al. 2022

ACS Appl. Mater. Interfaces

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“…One mechanism for introducing two-dimensional materials into organic coatings is that two-dimensional materials can construct labyrinth-like channels to extend the penetration path of the corrosion electrolyte in the coating. In addition, nanofillers can fill the pores formed in the organic coating during solvent volatilization and increase the compactness of the coating . Khatoon et al synthesized poly(p-phenylenediamine) (PPPDA) covalently functionalized ethylenediamine-modified graphene (MGO-PPPDA) and added it as a nanofiller to safflower oil polyurethane .…”

Section: Introductionmentioning

confidence: 99%

“…In addition, nanofillers can fill the pores formed in the organic coating during solvent volatilization and increase the compactness of the coating. 13 Khatoon et al synthesized poly(pphenylenediamine) (PPPDA) covalently functionalized ethylenediamine-modified graphene (MGO-PPPDA) and added it as a nanofiller to safflower oil polyurethane. 14 results show that the nanocomposite coating has excellent anticorrosion performance, which may be because the MGO nanosheets have good dispersibility and embedding in the polymer matrix after being covalently functionalized by PPPDA.…”

Section: ■ Introductionmentioning

confidence: 99%

Silanized MXene/Carbon Nanotube Composites as a Shielding Layer of Polyurethane Coatings for Anticorrosion

Wang

Chang

Wang

et al. 2022

ACS Appl. Nano Mater.

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Two-dimensional Ti3C2T x flakes have been studied as nanofillers in anticorrosive coatings, but their poor dispersion and interfacial interaction in coatings limit their application. In this study, we report silanized Ti3C2T x /carbon nanotube (CNT) nanocomposite as a shielding layer for waterborne polyurethane (WPU) coatings, which makes the WPU coatings have enhanced anticorrosion properties. [3-(2-Aminoethylamino)-propyl] trimethoxysilane (AEAPTMS) is used to make the Ti3C2T x surface electropositive, and sodium dodecylbenzene sulfonate (SDBS)-functionalized CNTs (S-CNTs) with negative charges on the surface are used to form highly dispersed composite nanofillers with Ti3C2T x through electrostatic interaction. The functionalized surfaces of Ti3C2T x and S-CNTs form an effective shielding layer in the coating, which effectively prevents the penetration of corrosive electrolytes. The results reveal that the AEAPTMS-functionalized Ti3C2T x (A-Ti3C2T x ) and S-CNTs synergistically enhanced the anticorrosion performance of the WPU coatings. After 120 days of immersion, the impedance of the A-Ti3C2T x /S-CNTs/WPU composite coating at 0.01 Hz is still 4.2568 × 107 Ω cm2. This improved performance depends on the good dispersibility and interface compatibility of the surface-functionalized Ti3C2T x and S-CNTs in the coating layer. The prepared coating described in this study presents a great potential for practical protective coating applications like medical apparatus and instruments.

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“…Accordingly, waterborne epoxy coating (WEP) has emerged as a promising material for metal protection. However, the capability of WEP to resist microdefects attacking and the presence of hydrophilic groups result in interfacial corrosion, which causes interface adhesion loss and premature failure of coating systems. − Hence, it is imperative to reveal the interfacial failure mechanism and construct smart anticorrosion coatings (ACs) with efficient damage self-healing and strong adhesion properties.…”

Section: Introductionmentioning

confidence: 99%

Photothermal-Responsive Wormlike Polydopamine-Wrapped Ethylene-Vinyl Acetate Copolymer toward Triple-Action Self-Healing Anticorrosion Coating

Liu

Cheng

Hou

et al. 2022

ACS Appl. Polym. Mater.

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The design and synthesis of smart polymeric coatings with excellent self-healing and interfacial adhesion capability are highly pursued for anticorrosion applications. Herein, a unique strategy for triple-action self-healing anticorrosion coatings was applied by the cooperation of the crack closure, healing agent filling, and corrosion inhibition effects. The coating system was constructed by the combination of wormlike polydopamine wrapped ethylene vinyl acetate microspheres (PDA@EVA) and a shape memory epoxy network. Owing to the prominent photothermal characteristic of PDA, the shape memory coating exhibits rapid crack closure property with near-infrared (NIR) irradiation. Meanwhile, the local high temperature promotes the melting and flow of designed wormlike EVA to fill the defects. Morphology investigations revealed that the coating scratch can be promptly healed with 90 s of NIR irradiation. Except as a photothermal agent, PDA can also coordinate with metal substrate, further inhibiting localized corrosion and strengthening the coating/ metal interfacial interaction. Electrochemical measurements proved that the local corrosion reactivity was significantly inhibited and the coating resistance also recovered. In addition, the adhesion strength of PDA@EVA embedded coating reaches 7.6 MPa after a healing process, which is about 84% of intact coating. This strategy presented here provides avenues for developing smart protective coatings with high healing efficiency and service durability.

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CeO2 grafted carbon nanotube via polydopamine wrapping to enhance corrosion barrier of polyurethane coating

Cited by 95 publications

References 57 publications

Ultrastable Porous Covalent Organic Framework Assembled Carbon Nanotube as a Novel Nanocontainer for Anti-Corrosion Coatings: Experimental and Computational Studies

Ultrastable Porous Covalent Organic Framework Assembled Carbon Nanotube as a Novel Nanocontainer for Anti-Corrosion Coatings: Experimental and Computational Studies

Silanized MXene/Carbon Nanotube Composites as a Shielding Layer of Polyurethane Coatings for Anticorrosion

Photothermal-Responsive Wormlike Polydopamine-Wrapped Ethylene-Vinyl Acetate Copolymer toward Triple-Action Self-Healing Anticorrosion Coating

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