Composite coatings with polymeric modified ZnO nanoparticles and nanocontainers with inhibitor for corrosion protection of low carbon steel

Kamburova, Kamelia; Boshkova, Nelly; Boshkov, N.; Radeva, Ts.

doi:10.1016/j.colsurfa.2020.125741

Cited by 45 publications

(31 citation statements)

References 30 publications

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“…ZnO nanoparticles covered with PEI, followed by electrodeposition of ordinary zinc coating at pH 4.5-5.0. The microstructure of the coatings shows a nearly homogeneous distribution of the particles [34].…”

Section: Surface Morphology and Cross-sectionsmentioning

confidence: 97%

“…Stable ZnO suspension is prepared and evaluated according to [34]-0.1 g/L ZnO nanopowder is added to a 0.1 g/L PEI aqueous solution. Thereafter, the so-obtained suspension is ultrasonicated for 10 min with the aim of improving the dispersion of ZnO nanoparticles.…”

Section: Materials and Preparation Of Stable Zno Suspensionmentioning

confidence: 99%

“…Their electrokinetic zeta potential ζ is calculated from the electrophoretic mobility by applying Smoluchowski equation ζ = 4πηU e /ε, where ε is the electric permittivity and η is the viscosity of the medium. Scanning Electron Microscopy (INCA Energy 350 unit, Oxford Instruments, Oxford, UK) is used for evaluation of the surface morphology of the samples obtained [34]. Cross-sections of both hybrid coatings are investigated with straight optical microscope Zeiss Axioscope 5 (ZEISS, Jena, Germany)magnification ×100.…”

Section: Characterization Of Zno and Cuo Nanoparticlesmentioning

confidence: 99%

“…CVA tests are carried out in the potential interval between −1.9 and 0.2 V with a scan rate of 10 mV/s. More information about the principles and features of the methods used are described elsewhere [34,35].…”

Section: Corrosion Characterizationmentioning

confidence: 99%

“…The pH of the suspension remains stable for 72 h after its dilution to a concentration of 4 × 10 −2 g/L (pH 7.5). More information concerning the characterization of ZnO nanoparticles is presented elsewhere [34].…”

Section: Characterization Of Zno Nanoparticles Dispersionmentioning

confidence: 99%

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Hybrid Zinc-Based Multilayer Systems with Improved Protective Ability against Localized Corrosion Incorporating Polymer-Modified ZnO or CuO Particles

et al. 2021

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Localized corrosion and biofouling cause very serious problems in the marine industries, often related to financial losses and environmental accidents. Aiming to minimize the abovementioned, two types of hybrid Zn-based protective coatings have been composed. They consist of a very thin underlayer of polymer-modified ZnO or CuO nanoparticles and toplayer of galvanic zinc with a thickness of ~14 µm. In order to stabilize the suspensions of CuO or ZnO, respectively, a cationic polyelectrolyte polyethylenimine (PEI) is used. The polymer-modified nanoparticles are electrodeposited on the steel (cathode) surface at very low cathodic current density and following pH values: 1/CuO at pH 9.0, aiming to minimize the effect of aggregation in the suspension and dissolution of the CuO nanoparticles; 2/ZnO at pH 7.5 due to the dissolution of ZnO. Thereafter, ordinary zinc coating is electrodeposited on the CuO or ZnO coated low-carbon steel substrate from a zinc electrolyte at pH 4.5–5.0. The two-step approach described herein can be used for the preparation of hybrid coatings where preservation of particles functionality is required. The distribution of the nanoparticles on the steel surface and morphology of the hybrid coatings are studied by scanning electron microscopy. The thickness of the coatings is evaluated by a straight optical microscope and cross-sections. The protective properties of both systems are investigated in a model corrosive medium of 5% NaCl solution by application of potentiodynamic polarization (PDP) curves, open circuit potential (OCP), cyclic voltammetry (CVA), and polarization resistance (Rp) measurements. The results obtained allow us to conclude that both hybrid coatings with embedded polymer-modified CuO or ZnO nanoparticles ensure enhanced corrosion resistance and protective ability compared to the ordinary zinc.

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Section: Surface Morphology and Cross-sectionsmentioning

confidence: 97%

Section: Materials and Preparation Of Stable Zno Suspensionmentioning

confidence: 99%

Section: Characterization Of Zno and Cuo Nanoparticlesmentioning

confidence: 99%

Section: Corrosion Characterizationmentioning

confidence: 99%

Section: Characterization Of Zno Nanoparticles Dispersionmentioning

confidence: 99%

See 3 more Smart Citations

Hybrid Zinc-Based Multilayer Systems with Improved Protective Ability against Localized Corrosion Incorporating Polymer-Modified ZnO or CuO Particles

et al. 2021

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Mussel‐inspired Self‐assembly into Polymer Coatings of Different Molecular Weight Electrolytes for Enhanced Self‐healing and Corrosion Properties

Zhang

Sheng

et al. 2023

Chemistry An Asian Journal

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Self‐healing coatings offer tremendous application prospects in the field of preventing metal corrosion because of their superior functionality. The coordination of barrier performance and self‐healing ability, however, continues to be difficult. Herein, a polymer coating based on polyethyleneimine (PEI) and polyacrylic acid (PAA) with self‐repairing and barrier ability was designed. Introducing the catechol group into the anti‐corrosion coating increases the adhesion and self‐healing efficiency of the coating, providing a guarantee for the long‐term stable bonding between the anti‐corrosion coating and the metal substrate. Small molecular weight PAA polymers are added to polymer coatings to increase their self‐healing capabilities and corrosion resistance. Because layer‐by‐layer assembly creates reversible hydrogen bonds and electrostatic bonds that help the coating repair itself when it is damaged, and because the traction of small molecular weight polyacrylic acid speeds up this process. When polyacrylic acid (PAA) with a molecular weight of 2000 was present in the coating at a concentration of 1.5 mg/mL. The PEI‐C/PAA45W‐PAA2000 coating has the fastest self‐healing, and the corrosion resistance efficiency (Pe) was as high as 90.1%. The polarization resistance (Rp) was maintained at 7.67×104 Ω∙cm2 after immersion for more than 240 h. It was better than other samples in this work.

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Corrosion inhibitors for carbon steel: A review

Desai,

Pawar,

Avhad

et al. 2022

Vietnam Journal of Chemistry

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Corrosion inhibitors are one of the practical and cost‐effective way of preventing and inhibiting corrosion. An inhibitor's primary function includes creating a barrier by forming one or more molecular layers to protect against corrosive attacks. Organic molecules are one of the most popular, efficient, and practical corrosion inhibitors, and all studies demonstrate that organic compounds, preferentially those containing nitrogen (N), sulphur (S), and oxygen (O), have high inhibitory efficiency. Also, corrosion inhibitors include inorganic compounds. Since inorganic and organic inhibitors are both toxic and expensive; emphasis is being placed on developing green corrosion inhibitors as well as on modification of inhibitors. We are focusing on carbon steel (CS) substrate in this review as it is the first‐line material and is widely employed in various industrial applications. Whereas corrosion resistance of CSs in acidic environments is a constantly evolving topic, working on better performance of CSs as more cost‐effective alternatives to other alloys.

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Composite coatings with polymeric modified ZnO nanoparticles and nanocontainers with inhibitor for corrosion protection of low carbon steel

Cited by 45 publications

References 30 publications

Hybrid Zinc-Based Multilayer Systems with Improved Protective Ability against Localized Corrosion Incorporating Polymer-Modified ZnO or CuO Particles

Hybrid Zinc-Based Multilayer Systems with Improved Protective Ability against Localized Corrosion Incorporating Polymer-Modified ZnO or CuO Particles

Mussel‐inspired Self‐assembly into Polymer Coatings of Different Molecular Weight Electrolytes for Enhanced Self‐healing and Corrosion Properties

Corrosion inhibitors for carbon steel: A review

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