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Anticorrosive properties of a superhydrophobic coating based on an ORMOSIL enhanced with MCM-41-HDTMS nanoparticles for metals protection / Erik Uc-Fernández in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 1 (01/2023)
[article]
Titre : Anticorrosive properties of a superhydrophobic coating based on an ORMOSIL enhanced with MCM-41-HDTMS nanoparticles for metals protection Type de document : texte imprimé Auteurs : Erik Uc-Fernández, Auteur ; Jorge González-Sánchez, Auteur ; Alejandro Ávila-Ortega, Auteur ; Yamile Pérez-Padilla, Auteur ; J. Manuel Cervantes-Uc, Auteur ; Javier Reyes-Trujeque, Auteur ; William A. Talavera-Pech, Auteur Année de publication : 2023 Article en page(s) : p. 347-357 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier au carbone
Analyse quantitative (chimie)
Angle de contact
Anticorrosifs
Anticorrosion
Caractérisation
Energie de surface
Hexadécyltriméthoxysilane
Hydrophobie
Matériaux mésoporeux
Métaux -- Revêtements protecteurs
Microscopie
Nanoparticules
Revêtements organiques
Revêtements protecteurs
Spectroscopie d'impédance électrochimique
Surfaces fonctionnellesIndex. décimale : 667.9 Revêtements et enduits Résumé : The anticorrosive properties of hexadecyltrimethoxysilane (HDTMS) functionalized MCM-41 silica particles (MCM-41-HDTMS) incorporated into a methyltriethoxysilane (MTES) sol-gel matrix coatings were studied. The MCM-41 particles were synthesized and functionalized with HDTMS, and added to a sol composed of MTES:methanol:NH4OH 7M to create a coating. The materials synthesized with and without MCM-41-HDTMS were deposited, by dip coating, on Cu and Fe sheets, and were physically characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle, surface energy using the Owens, Wendt, Rabel, and Kaelble (OWRK) method, and by electrochemical impedance spectroscopy (EIS). The addition of the MCM-41-HDTMS to the MTES matrix induced an increase of the contact angle by about 10 degrees with an augment in its dispersive component, caused by a lofty deposition of long carbon chains from HDTMS over the high surface area of the MCM-41 particles, changing from hydrophobic to superhydrophobic materials with a contact angle of 155° for the Cu-MTES-HDTMS sample. EIS results show that the addition of MCM-41-HDTMS increases the charge transfer resistance providing better protection to metals. The results show that with the addition of MCM-41-HDTMS to an MTES matrix it is possible to synthesize superhydrophobic coatings capable of limiting the corrosion degradation process. Note de contenu : - MATERIALS AND METHODS : Materials - Synthesis of MCM-41-HDTMS particles - Synthesis of coatings - Application of the coating - Characterization
- DISCUSSION AND RESULTS : Scanning electron microscopy and elemental chemical analysis (SEM-EDS) - Atomic force microscopy (AFM) - Contact angle and surface energy - Electrochemical impedance spectroscopy
- Table 1 : Atomic percentages of the main elements present in coatings obtained by EDS analysis
- Table 2 : Surface energy of all substrates calculated by OWRK method
- Table 3 : Quantitative impedance analysis for Cu, Cu-MTES, and Cu-MTES-HDTMS systems
- Table 4 : Quantitative impedance analysis for Fe, Fe-MTES, and Fe-MTES-HDTMS systemsDOI : https://doi.org/10.1007/s11998-022-00675-1 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00675-1.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38847
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Code-barres Cote Support Localisation Section Disponibilité 23928 - Périodique Bibliothèque principale Documentaires Disponible Anticorrosive properties of the double-layer PANI-(graphene oxide)/epoxy coating in protecting carbon steel in saltwater / Ahmad Diraki in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)
[article]
Titre : Anticorrosive properties of the double-layer PANI-(graphene oxide)/epoxy coating in protecting carbon steel in saltwater Type de document : texte imprimé Auteurs : Ahmad Diraki, Auteur ; Sasha Omanovic, Auteur Année de publication : 2023 Article en page(s) : p. 995-1006 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier au carbone
Anticorrosifs
Anticorrosion
Caractérisation
Electrochimie
Epoxydes
Métaux -- Revêtements protecteurs
Oxyde de graphène
Polyaniline
Revêtements multicouches
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : The work reports result in improving the anticorrosive properties of a commercial epoxy coating by forming a double-layer coating structure. First, a thin (ca. 5 μm) electrically conductive polyaniline (PANI) coating was wormed directly on the carbon steel (CS) surface, on top of which a thicker (ca. 20 μm) epoxy coating was applied. The inner PANI layer was also loaded with graphene oxide (GO). The resulting anticorrosive properties of the coatings were investigated in 3.5 wt.% NaCl employing electrochemical techniques, while the surface and cross-sectional morphology of the coatings was examined by scanning electron microscopy (SEM). The results showed that the commercial epoxy coating started gradually failing several days after its exposure to the electrolyte, while it took 37 days for larger pores to appear in the PANI/epoxy coating, which then gradually continued to fail. On the other hand, the PANI-GO/epoxy coating maintained its high corrosion resistance, without forming impedance-detectable pores, over the entire testing period (two months). The excellent corrosion protection properties of the PANI-GO/epoxy coating were prescribed solely to the presence of the underlying PANI-GO layer, which represents a better barrier for the transport of hydrated corrosive ions to the CS surface, through the combined action of charge (repulsion of hydrated corrosive anions and iron oxide film formation), surface energy (hydrophobicity), and blocking mechanisms. Note de contenu : - EXPERIMENTAL : Materials - Instrumentation - Sample preparation - Preparation of the coatings - Corrosion measurements - Surface characterization
- RESULTS AND DISCUSSION : Physical characterization of the coatings - Anticorrosive properties of the coatings-electrochemical measurements - Long-term corrosion study
- Table 1 : Technical characteristics of the profilometer
- Table 2 : Corrosion current determined from Tafel measurements recorded on the naked (unprotected) CS surface and the CS surface protected by the three coatings
- Table 3 : EEC parameter values obtained by modelling the EIS spectra presented in Fig. 5DOI : https://doi.org/10.1007/s11998-022-00719-6 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00719-6.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39443
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Code-barres Cote Support Localisation Section Disponibilité 24069 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Anticorrosive self healing coatings Type de document : texte imprimé Auteurs : Ajay Chaurasiya, Auteur Année de publication : 2020 Article en page(s) : p. 56-82 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosifs
Anticorrosion
Catalyseurs
Emulsification
Métathèse (chimie)
Métaux -- Revêtements protecteurs
Microcapsules
Monomères
Nanocapsules
Passivité (Chimie)
Polymérisation
Revêtement autoréparant
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Autonomic healing materials respond without external intervention to environmental stimuli in a nonlinear and productive fashion, and have great potential for advanced engineering systems. Self-healing coatings, which autonomically repair and prevent corrosion of the underlying substrate, are of particular interest. Notably, the worldwide cost of corrosion has been year estimated to be nearly $300 billion per year. Recent studies on self-healing polymers have demonstrated repair of bulk mechanical damage as welI as dramatic increases in the fatigue life. Non-metallic (based on polymers or oxides) and metallic protective coatings are used to protect metal products against the harmful action of the corrosion environment Various approaches for achieving healing functionality encapsulation have been demonstrated, including reversible chemistry, networks, microvascular nanoparticle phase separation, poly-ionomers, fibres hollow and separation. monomer phase. The majority of these systems, however, have serious chemical and mechanical limitations, preventing their use as coatings. Modem engineered coatings are highly optimized materials in which dramatic modifications of the coating chemistry are unlikely to be acceptable. Here, we describe a generalized approach to self-healing polymer-coating systems, and demonstrate its effectiveness for both model and industrial ly important coating systems. Note de contenu : - Definition of self-healing
- Design strategies
- Release of healing agents
- Microcapsule embedment
- Hollow fiber embedment
- Microvascular system
- Reversible cross-links
- Diels-Alder (DA) and retro-DA reaction
- Ionomers
- Supramolecular polymers : Miscellaneous technologies - electrohydrodynamics
- CONDUCTIVITY : Shape memory effect
- Nanoparticle migrations
- Co-deposition
- Self-healing corrosion protection coatings polymeric coatings
- Protection of mild steel
- Protection of aluminium alloy
- Protection of magnesium alloy
- Coatings containing micro-nanocapsules
- Hybrid-oxide coatings
- Other self-healing coatings
- Self-healing process
- experimental analysis for cross cut corrosion resistance test
- Others applications
- Fig. 1 : Schematic representation of self-healing concept using embedded microcapsules
- Fig. 2 : Light microscopic picture of encapsulated DCPD and Grubb's catalyst
- Fig. 3 : Ring opening metathesis polymerization of DCPD
- Fig. 4 : Optical micrographs of hollow glass fibers
- Fig. 5 : Schematic representation of sel-healing concept using hollow fibers
- Fig. 6 : Schematic showing self-healing materials with 3D microvascular networks
- Fig. 7 : Schematic showing formation of highly cross-Iinked polymer (3M4F) using a multi-diene (four furan moieties, 4F) and multi-dienophile (three maleimide moieties, 3M) via DA reactions
- Fig. 8 : Chemical structure of functionalized maleimide and furan monomers
- Fig. 9 : Thermally reversible cross-linking reaction between TMI and TF through DA and retro-DA reactions
- Fig. 11 : Preparation of thermally reversible polyamides
- Fig. 12 : Schematic showing reversible ionic interactions
- Fig. 13 : Examples of supramolecular polymers from the literature : main-chain supramolecular polymers and side-chain supramolecular polyemrs
- Fig. 17 : Polymeric bis-terpyridine-metal complex (charge and anions omitted)
- Fig. 18 : Schematic showing electrohydrodynamic aggregation of particles
- Fig. 19 : Schematic showing conductive self-healing materials
- Fig. 20 : Representative three-dimensionsl profiles of a spherical indent at load of 15 N fresh indent and after healing above the austenite finish temperature
- Fig. 21 : Schematics showing electrolytic co-deposition of microcapsules (or mesoporous nanoparticles containing corrosion inhibitors) with metal ions
- Fig. 22 : Schematic illustration of a crack in the epoxy coating
- Fig. 23 : Schematic representation of the self-healing effect of the TiO, particle polymer composite coating
- Fig. 24 : Schematic Illustration of self healing zipper-like mechanism
- Fig. 25 : Schematic Self-healing mechanism of polyelectrolyte multilayers
- Fig. 25 : Schematic shows how a capsule is created
- Fig. 26 : Schematic shows structure of silane film
- Fig. 27 : Epoxy with control, epoxy with corrosion inhibitor and epoxy with self healing additives
- Fig. 28 : Schematic showing the reflow effect of self-haling clear coatsEn ligne : https://drive.google.com/file/d/1Z-i4m7ZBZI117NIGydOCioBCW5SAUQyz/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34661
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Code-barres Cote Support Localisation Section Disponibilité 22359 - Périodique Bibliothèque principale Documentaires Disponible Application of electrochemical polarization technique for the development of phosphating formulation used for the pretreatment of mild steel / Himansu Talukdar in PAINTINDIA, Vol. LXVIII, N° 3 (03/2018)
[article]
Titre : Application of electrochemical polarization technique for the development of phosphating formulation used for the pretreatment of mild steel Type de document : texte imprimé Auteurs : Himansu Talukdar, Auteur ; Abhishek Ghosh, Auteur Année de publication : 2018 Article en page(s) : p. 112-118 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Anticorrosifs
Anticorrosion
Electrochimie
Formulation (Génie chimique)
Métaux -- Revêtements protecteurs
Phosphatation
Polarisation (électricité)
Revêtement de surfaceIndex. décimale : 667.9 Revêtements et enduits Résumé : The development of phosphating chemical for the pretreatment of mild steel is largely guided by the performance in salt spray experiment. This, however, requires a long time to finalise the most effective formulation. The application of electrochemical techniques are becoming popular tool for evaluating surface coating in coating industry. In this article we have attempted a simple galvanostatic polarization technique to find out the best workable phosphating chemical composition for the pretreatment of mild steel before painting. Note de contenu : - Table 1 : Experimental data for polarization of bare MS in 3.5% sodium chloride solution
- Table 2 : Experimental data for polarization of (Al) in 3.5% sodium chloride solution
- Table 3 : Experimental data for polarization of (B) in 3.5% sodium chloride solution
- Table 4 : Experimental data for polarization of (C) in 3.5% sldium chloride solution
- Table 5 : Experimental data for polzrization of (D) in 3.5% sodium chloride solution
- Fig. 1 : Galvanostatic polarization of Bare MS in 3.5% NaCl solution for estimation of jcorr and Ecorr
- Fig. 2 : Galvanostatic polarization of iron phosphated (A) MS in 3.5% NaCl solution for estimation of jcorr and Ecorr
- Fig. 3 : Galvanostatic polarization of zinc phosphated MS in 3.5% NaCl solution for estimation of jcorr and Ecorr
- Fig. 4 : Galvanostatic polarization of calcium modified zinc phosphated MS in 3.5% NaCl solution for estimation of jcorr and Ecorr
- Fig. 5 : Galvanostatic polarization of zinc, manganese and nickel phosphated MS in 3.5% NaCl solution for estimation of jcorr and Ecorr
- Fig. 6 : Iron phosphate panel (A) passes upto 192 hours
- Fig. 7 : Zinc phosphate panel (B) in 500 hours (rust creepage = <3.0 mm)
- Fig. 8 : Ca mod. Zn phosphate panel (C) in 500 hours (Rust creepage = >2.0 mm
- Fig. 9 : Tri-cationic phosphate panel (C) in 500 hours (Rust creepage = >0.5 mmEn ligne : https://drive.google.com/file/d/1xTmLYVupGMFZ-GSGR1ARONbMJpu983hp/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30697
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Code-barres Cote Support Localisation Section Disponibilité 19991 - Périodique Bibliothèque principale Documentaires Disponible Application systems for abrasive materials / Wolfgang Pucken in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 5, N° 1 (2012)
[article]
Titre : Application systems for abrasive materials : Practical hints for choosing machinery Type de document : texte imprimé Auteurs : Wolfgang Pucken, Auteur Année de publication : 2012 Article en page(s) : p. 6-7 Langues : Anglais (eng) Catégories : Abrasifs -- Protection
Anticorrosifs
Anticorrosion
Revêtements
Revêtements -- Appareils et matériels:Peinture -- Appareils et matérielsIndex. décimale : 667.9 Revêtements et enduits Résumé : Anti-corrosion products often contain abrasive substances, which means that the materials handling application systems need to be designed with this in mind. Which factors need to be taken into consideration ? Note de contenu : - Large pumps
- With an agitator and without filters
- Spray gun with front connection and swivel joint
- Special range of pumpsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14338
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Code-barres Cote Support Localisation Section Disponibilité 13788 - Périodique Bibliothèque principale Documentaires Disponible Aspects of corrosion : seminar report / Algy Kazlauciunas in SURFACE COATINGS INTERNATIONAL, Vol. 96, 4 (08/2013)
PermalinkBarrier against rust by pure, platy talc / Veli Kilpeläinen in SURFACE COATINGS INTERNATIONAL, Vol. 105.2 (03-04/2022)
PermalinkBattling corrosion with vapor corrosion inhibiting coatings in COATINGS TECH, Vol. 14, N° 6 (06/2017)
PermalinkBedeviled bridges : An answer to a national scandal / Mike O'Donoghue in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 34, N° 5 (05/2017)
PermalinkBlasting, straightening and priming steel sheets and profiles for cruise liners in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 8, N° 3 (2015)
PermalinkLe bois, les façades, le métal / Association Française des Techniciens des Peintures, Vernis, Encres et Adhésifs / Paris : AFTPVA (2005)
PermalinkA brief review of the graphene oxide-based polymer nanocomposite coatings: preparation, characterization, and properties / Zahra Shahryari in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 4 (07/2021)
PermalinkCasting out chromium / Abdel Salam Hamdy Makhlouf in EUROPEAN COATINGS JOURNAL (ECJ), N° 3 (03/2012)
PermalinkCeramic pigments containing IPN based on silicone/CNSL-S / S. Sankar in PAINTINDIA, Vol. LVI, N° 2 (02/2006)
PermalinkChallenging the performance myth of inorganic zinc silicates / Oriol Osso in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 208, N° 4639 (03/2018)
PermalinkChaque cas est particulier in GALVANO ORGANO, N° 816 (12/2012)
PermalinkCharacterisation of coatings and coating materials by analytical centrifugation / U. Rietz in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 209, N° 4650 (04/2019)
PermalinkCharacteristics of anticorrosive pigments used in primers / Mukund Hulyalkar in PAINTINDIA, Vol. LXVII, N° 6 (06/2017)
PermalinkCharacterization and corrosion protection properties of composite material (PANI+TiO2) coatings on A304 stainless steel / Souhila Abaci in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 1 (01/2015)
PermalinkCharacterization of a chromate-inhibited primer by doppler broadening energy spectroscopy / Hong-Soo Park in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 3, N° 2 (04/2006)
PermalinkCharacterization of a water-based paint for corrosion protection / Paula Dias in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 3 (05/2012)
PermalinkCharacterization of water-repellent and corrosion-resistant superhydrophobic surfaces on galvanized steel in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 6 (11/2020)
PermalinkChemical and anticorrosion characterization of polysilsesquioxane coatings catalyzed by different acids / Wentao Xing in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 5, N° 1 (03/2008)
PermalinkChromate (Cr6+)-free surface treatments for active corrosion protection of aluminum alloys: a review / Shri Shri Prakash in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 1 (01/2024)
PermalinkClosing in on solvent-borne coatings / Maurille Secher in EUROPEAN COATINGS JOURNAL (ECJ), N° 2 (02/2019)
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