Application of polymeric modified polyaniline-silica particles for improved corrosion resistance of hybrid zinc coatings

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

doi:10.1016/j.colsurfa.2020.124546

Cited by 20 publications

(12 citation statements)

References 27 publications

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“…Some reports indicate that the corrosion rate in 5% NaCl solution of hybrid coating Zn–PANI–SiO 2 covered with Pluronic F127 has a value of 150 μm/year, hybrid coating Zn–PANI–SiO 2 covered with Pluronic F127 and benzalacetone in ethanol used as additive for electrodeposition has a corrosion rate of 165 μm/year and ordinary zinc electrodeposits in the same condition has a corrosion rate of 240 μm/year [ 9 ]. For other hybrid coatings with zinc matrix and polymers used as disperse phase, it was reported for composite Zn(PMMA), particle-free Zn(00.2) and commercial galvanized steel coatings in aerated NaCl 0.6 M solution, a corrosion rate with values of 102 μm/year, 122 μm/year and 212 μm/year [ 10 ].…”

Section: Resultsmentioning

confidence: 99%

“…For this reason, it is necessary to improve these coatings by adding different organic and inorganic particles. For example, it was reported that new composite coatings were obtained by co-deposition using metal matrix and different particles such as SiO 2 , TiO 2 , ZrO 2 nanoparticles, carbon nanotubes, polytetrafluorethylene (PTFE), polyaniline (PAN), polymethylmethacrylate (PMMA) exhibited improved corrosion properties when compared with conventional zinc [ 5 , 6 , 7 , 8 , 9 , 10 ]. In these composite coatings, mixed layers of corrosion products from the metal and particles in the composite coating often appear and demonstrate a synergistic interaction which contributes to the improvements in properties of hybrid layers.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings

et al. 2021

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The paper presents the morphology, topography and corrosion behavior of epoxy resin/zinc hybrid coatings obtained by electrodeposition from zinc sulphate electrolyte. The effect of current density and mean diameter size of polymer particles used for electrodeposition of the epoxy resin/zinc coatings on the morphology, topography and roughness of the surfaces were investigated by Scanning Electron Microscopy and Atomic Force Microscopy. The corrosion behavior of the hybrid coatings in 0.5 M sodium chloride solution was evaluated using electrochemical methods. For microbiological corrosion, the effect of sulphate reducing bacteria (SRB) on the surfaces was evaluated using epifluorescence microscopy. The surface roughness before and after bacteria attachment was evaluated using Aatomic force microscopy. Polymer particles provide an influence in restricting the growth of zinc crystals as well as a catalytic role in nucleation sites increase. The results of electrochemical tests indicate a very good corrosion resistance of hybrid coatings comparing with zinc coatings. Epifluorescence images demonstrate that hybrid coating surfaces are slightly attacked by sulphate reducing bacteria.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings

et al. 2021

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“…The advantages of these new materials can be stated as follows: corrosion resistance, breaking strength, wear resistance, high-temperature resistance, surface hardness, dimensional stability, vibration damping capacity, environmental resistance, thermal conductivity or thermal insulation, conductivity electricity, wetting capacity, relatively low price etc. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…For these reasons is necessary to improve the corrosion behaviour of pure zinc coatings using different disperse phase included in the zinc matrix. Phenol formaldehyde resin and epoxy resin are used usually as polymeric coatings because act as a barrier to protect steel from different corrosion environments and are widely used for industrial applications [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Corrosion Resistance in 3.5% NaCl Solution of Hybrid Coatings Obtained from Plastics Materials

Mureșan¹,

Buruiană²,

Carp³

et al. 2021

Mater. Plast.

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In this work, the corrosion resistance of hybrid coatings obtained from plastic materials was evaluated and compared with the corrosion resistance of Zn coatings. Zinc and hybrid coatings were obtained by electrodeposition from zinc sulphate electrolyte. For obtained hybrid coatings it was used as disperse phase two type of plastic materials: phenol-formaldehyde resin and epoxy resin. Polarization was used to measure the corrosion rate and behaviour of zinc and hybrid coatings in 3.5% NaCl solution. Tafel curves show that the including particles of plastic materials in zinc matrix disturbs the cathodic reactions and reduces anodic reaction leading to decrease of corrosion current and increase the corrosion resistance of hybrid coatings obtained at the same electrodeposition parameters as zinc coatings. Smallest values of corrosion rate were evaluated for hybrid coatings obtained with phenol-formaldehyde resin as disperse phase that indicates a good corrosion resistance in 3.5% NaCl solution.

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“…and impede the penetration of corrosive agents inside the underlying metal [1][2][3]. Incorporation of nano-or microparticles, such as SiO 2 , TiO 2 , ZrO 2 , polytetrafluorethylene (PTFE), and polyaniline-SiO 2 (PANI-SiO 2 ) particles, enhances the protective characteristics of the ordinary zinc coatings [4][5][6][7][8]. The reason for this phenomenon seems to be the appearance of a mixed layer that simultaneously contains the corrosion products and the incorporated particles.…”

Section: Introductionmentioning

confidence: 99%

Obtaining and Corrosion Performance of Composite Zinc Coatings with Incorporated Carbon Spheres

et al. 2020

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The present work describes one possible way to prepare a stable aqueous suspension of carbon sphere particles with a positive charge that is suitable for simultaneous electrodeposition with zinc on steel substrate. In order to stabilize the suspension against aggregation, tri-block amphiphilic copolymer Pluronic F127, which is commercially available, was adsorbed on the surface of carbon sphere particles. This polymer contained poly (ethylene oxide) blocks as hydrophilic segments and poly (propylene oxide) blocks as the hydrophobic part. Scanning electron microscopy and visual observations confirmed the stability of the obtained suspension. The carbon sphere particles were embedded into the zinc coating by the co-electrodeposition process. The surface morphology of the composite coating was investigated using scanning electron microscopy. The influence of the carbon spheres on the cathodic and anodic processes was evaluated with cyclic voltammetry studies. The electrochemical investigations were realized in a model corrosion medium (5% NaCl solution with pH 6.7) by application of selected methods such as polarization resistance, potentiodynamic polarization, and electrochemical impedance spectroscopy, which revealed higher protective ability of the composite coating against corrosion in an aggressive environment.

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Application of polymeric modified polyaniline-silica particles for improved corrosion resistance of hybrid zinc coatings

Cited by 20 publications

References 27 publications

Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings

Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings

Evaluation of Corrosion Resistance in 3.5% NaCl Solution of Hybrid Coatings Obtained from Plastics Materials

Obtaining and Corrosion Performance of Composite Zinc Coatings with Incorporated Carbon Spheres

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