In-situ AFM and EIS study of a solventborne alkyd coating with nanoclay for corrosion protection of carbon steel

Li, Jing; Ecco, Luiz Gustavo; Fedel, Michele; Ermini, Valentina; Delmas, G.; Pan, Jinshan

doi:10.1016/j.porgcoat.2015.06.003

Cited by 60 publications

(24 citation statements)

References 46 publications

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“…R CT and CPE CT were added and represent, respectively, the charge transfer resistance to the metal. As reported by several authors [38][39][40][41][42][43][44] , the charge transfer resistance is related to the process of electron transfer from one phase (electrode) to another (liquid).…”

Section: Effect Of Tetraethoxy-silane (Teos) Amounts On the Corrosionmentioning

confidence: 92%

Effect of Tetraethoxy-silane (TEOS) Amounts on the Corrosion Prevention Properties of Siloxane-PMMA Hybrid Coatings on Galvanized Steel Substrates

et al. 2015

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Siloxane-poly(methyl methacrylate) (PMMA) organic-inorganic hybrid coatings were deposited on galvanized steel by the dip-coating sol-gel technique. Anticorrosion properties, as well as the morphological, surface and structural features were studied. Hybrid coatings were synthesized from tetraethoxy-silane (TEOS) and methyl methacrylate (MMA) as inorganic and organic phases, respectively, linked by 3-metacriloxypropyl-trimethoxysilane (TMSM) as a coupling agent. The MMA/TMSM ratio was kept constant, whereas the four TEOS/TMSM ratios were varied. The characterization of coatings was assessed using several techniques such as Scanning Electronic Microscopy (SEM), Contact Angle, Fourier Transform Infrared (FT-IR), Open Circuit Polarization (OCP), Atomic Force Microscopy (AFM) and Electrochemical Impedance Spectroscopy measurements (EIS). The EIS results, which were obtained for the hybrid coatings, were discussed based on an electrical equivalent circuit used to adjust the experimental data. The results showed that the increasing the TEOS content caused increase in coating thickness, increased in the surface roughness and increased in the surface hydrophobicity. The film with the highest TEOS content presented the best electrochemical performance, more effective in protecting against corrosion.

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Section: Effect Of Tetraethoxy-silane (Teos) Amounts On the Corrosionmentioning

confidence: 92%

Effect of Tetraethoxy-silane (TEOS) Amounts on the Corrosion Prevention Properties of Siloxane-PMMA Hybrid Coatings on Galvanized Steel Substrates

et al. 2015

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“…also have a favourable effect on the paint fi lm's mechanical resistance [15,16]. The particle shape and size of, e.g., spinel type compounds depend on the method of synthesis and on the conditions of the process [17,18].…”

Section: Byly Syntetizovány Směsné Oxidy Kovů Mg-zn-fe S Různou Morfomentioning

confidence: 99%

Anticorrosive efficiency of alkyd resin-based coatings containing Mg–Zn–Fe mixed oxide-based pigments

Kalendová

Halecká

Nechvílová

et al. 2017

Koroze a Ochrana Materialu

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“…Recently, the researches focused on UF reaction conditions during encapsulation process (reaction temperature, molar ratio, reaction time, pH, etc.) to obtain appropriate capsules . Lang and Zhou reported that higher temperatures resulted in improved capsules shell strength and higher surface roughness.…”

Section: Introductionmentioning

confidence: 98%

“…The synthesis of PUF resin is achieved in two steps: the methylolation (hydroxymethylation) of urea and the polycondensation reaction . During in situ encapsulation process, generally, time‐saving one‐step urea–formaldehyde (UF) reaction is preferred.…”

Section: Introductionmentioning

confidence: 99%

Role of hardener, crosslinker, and pH in bare process of urea–formaldehyde polymerization and forin situencapsulation of linseed oil

Çömlekçi

Ulutan

2018

J of Applied Polymer Sci

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In this study, urea–formaldehyde polymerizations in bare process and for in situ encapsulation of linseed oil (LO) have been scrutinized either at pH 3.5 or in inherently developing acidic pH. The solid‐state carbon nuclear magnetic resonance (13C‐NMR) revealed that the hardener and the crosslinker (NH4Cl and resorcinol) resulted in the formation of methylene linkage. The addition of NH4Cl and resorcinol slightly decreased the thermal stability of poly(urea formaldehyde) (PUF) resin. Optical microscopy (OM) images and scanning electron microscopy (SEM) micrographs show that most regular shapes of capsules were obtained when NH4Cl and resorcinol were used in the regular reaction medium. The increment of NH4Cl amount up to 0.124 mol resulted in a 41% decrement of capsule size, whereas increment resorcinol amount up to 0.062 mol increased the size by 14%. The capsule size range was found to be between 60 and 100 μm. The capsules had a hardness of 22–74 MPa and an elasticity of 0.5–1.5 GPa. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46947.

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In-situ AFM and EIS study of a solventborne alkyd coating with nanoclay for corrosion protection of carbon steel

Cited by 60 publications

References 46 publications

Effect of Tetraethoxy-silane (TEOS) Amounts on the Corrosion Prevention Properties of Siloxane-PMMA Hybrid Coatings on Galvanized Steel Substrates

Effect of Tetraethoxy-silane (TEOS) Amounts on the Corrosion Prevention Properties of Siloxane-PMMA Hybrid Coatings on Galvanized Steel Substrates

Anticorrosive efficiency of alkyd resin-based coatings containing Mg–Zn–Fe mixed oxide-based pigments

Role of hardener, crosslinker, and pH in bare process of urea–formaldehyde polymerization and forin situencapsulation of linseed oil

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