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Hybrid organic/inorganic coatings produced using a dual-cure mechanism / Jie He in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 4 (07/2012)
[article]
Titre : Hybrid organic/inorganic coatings produced using a dual-cure mechanism Type de document : texte imprimé Auteurs : Jie He, Auteur ; Bret J. Chisholm, Auteur ; Bret A. Mayo, Auteur ; Hanzhen Bao, Auteur ; Jared Risan, Auteur ; David A. Christianson, Auteur ; Crystal L. Rafferty, Auteur Année de publication : 2012 Article en page(s) : p. 423-431 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Matériaux hybrides
Polyacrylates
Réticulation (polymérisation)
Revêtements -- Entretien et réparations
Revêtements -- Séchage sous rayonnement ultraviolet
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
Sol-gel, ProcédéTags : Revêtements hybrides organiques / inorganiques - séchage UV revêtements mécanisme de guérison double Sol-gel Index. décimale : 667.9 Revêtements et enduits Résumé : A coating precursor containing both acrylate functionality and trimethoxysilane functionality was produced by reacting bisphenol-A glycerolate diacrylate with 3-isocyanatopropyltimethoxysilane. With this precursor, two different crosslinked networks can be produced. A polyacrylate network can be produced using a radiation-cure mechanism while a polysiloxane network can be produced by hydrolysis and condensation reactions involving the trimethoxysilane groups. The objective of the study was to determine the utility of this dual-cure system for generating rapid-cure coatings for corrosion protection. Coating properties were determined as a function of cure conditions. The results of the study showed that the formation of siloxane crosslinks was significantly hindered by the crosslinked network induced by the UV-curing process. Even though the overall conversion of trimethoxysilane groups to siloxane crosslinks was relatively low, coating barrier properties were significantly enhanced and coating free volume reduced. At ambient conditions, additional crosslinking occurring through siloxane bond formation increased within the first 4 days after UV-curing. Beyond this period, siloxane bond formation remained unchanged as did coating properties. Note de contenu : - Materials
- Coating preparation and processing
- InstrumentationDOI : 10.1007/s11998-011-9389-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-011-9389-z.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15993
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 9, N° 4 (07/2012) . - p. 423-431[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14189 - Périodique Bibliothèque principale Documentaires Disponible Hybrid sol-gel coatings for corrosion protection of galvanized steel in simulated concrete pore solution / Riba B. Figueira in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 2 (03/2016)
[article]
Titre : Hybrid sol-gel coatings for corrosion protection of galvanized steel in simulated concrete pore solution Type de document : texte imprimé Auteurs : Riba B. Figueira, Auteur ; Carlos J. R. Silva, Auteur ; Elsa V. Pereira, Auteur Année de publication : 2016 Article en page(s) : p. 355-373 Note générale : Bibliogr. Langues : Américain (ame) 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
Corrosion
Electrochimie
Matériaux hybrides
Métaux -- Revêtements protecteurs
Sol-gel, ProcédéIndex. décimale : 667.9 Revêtements et enduits Résumé : The aim of this experimental research was to study the electrochemical behavior of organic–inorganic hybrid (OIH) coatings for corrosion protection of hot-dip galvanized steel (HDGS) in the first instants of immersion in simulated concrete pore solution (SCPS) (pH > 12.5). The electrochemical performance of the OIH coatings was assessed by electrochemical impedance spectroscopy, potentiodynamic polarization curves, macrocell current density, and polarization resistance. The OIH coatings were prepared via the sol–gel method and were deposited on HDGS surfaces by dip-coating using one or three dip steps. The electrochemical results obtained for HDGS samples coated with OIH matrices in SCPS showed higher corrosion resistance than bare HDGS; as the molecular weight (MW) of Jeffamine® increased the barrier protection of the coating decreased. The lowest protection efficiency was found for HDGS samples synthesized with oligopolymers with an MW of 2000. Coatings produced with an oligopolymer of 230 MW conferred the highest protection. The surface morphology of the OIH coatings deposited on HDGS surfaces was studied by atomic force microscopy. The results show that the roughness of the OIH films depends on the MW of Jeffamine® and on the number of dip-coating steps used. Thermogravimetry results show that the Jeffamine® MW affected the thermal properties of the prepared OIH samples. The prepared OIH materials are thermally stable within the range of 20–80°C. Note de contenu : - EXPERIMENTAL : Reagents - Synthesis procedure of OIL ureasilicate matrix monoliths films and coatings by sol-gel method - Coating deposition - Electrochemical measurements - Coating morphology analysis - Thermogravimetric measurements (TGA)
- RESULTS AND DISCUSSION : Electrochemical impedance spectroscopy (EIS) - Potentiodynamic polarization studies - Macrocell current density (igal) and polarization resistance measurements - Surface characterization by AFM - Thermogravimetric analysis (TGA)DOI : 10.1007/s11998-015-9751-7 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9751-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26120
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 2 (03/2016) . - p. 355-373[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17962 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Hybrid sol-gel corrosion inhibitors : A novel approach to corrosion inhibitors for coatings Type de document : texte imprimé Auteurs : Tony Gichuhi, Auteur ; Andrew Balgeman, Auteur ; Amanda Adams, Auteur ; Shonda Prince, Auteur Année de publication : 2009 Article en page(s) : p. 24-29 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Matériaux hybrides
Sol-gel, ProcédéIndex. décimale : 667.9 Revêtements et enduits Résumé : Corrosion inhibitors provide an indispensable function to protective coatings. Heavy metal-based corrosion inhibitors were widely acclaimed as the best materials to provide corrosion protection to coatings. The performance of a coating under corrosive conditions requires that corrosion inhibitors provide reliable and sustainable protection during the coatings lifetime. Today, the industry is challenged to be more conscious of the impact that toxic metals have on human health and on other ecosystems. Sol-gel technology offers an eco-friendly alternative to the use of toxic metals (Cr VI, Cd, Pb, Cu, Ni, and Zn). This article highlights research in new sol-gel based corrosion inhibitors for use in paint as well as for use in the pretreatment of bare metals (e.g., steel, aluminum, silver). Sol-gel technology particularly affords superior corrosion protection in thin film coatings (< 25 µm dry), an area that up to now has been dominated by Cr-based anticorrosives. This technology is applicable to most waterborne and solventborne finishes, high gloss direct-to-metal coatings, conventional primers, acrylic clearcoats, fast drying lacquers, wash primers, anti-fingerprint, and conversion coatings. En ligne : https://drive.google.com/file/d/132tqfII8nWCFv3SBSWPp8jNEukme0Ec2/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5660
in COATINGS TECH > Vol. 6, N° 4 (04/2009) . - p. 24-29[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011360 - Périodique Bibliothèque principale Documentaires Disponible Hydrophobization, smoothing, and barrier improvements of cellulose nanofibril films by sol–gel coatings / Jari Vartiainen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 1 (01/2020)
[article]
Titre : Hydrophobization, smoothing, and barrier improvements of cellulose nanofibril films by sol–gel coatings Type de document : texte imprimé Auteurs : Jari Vartiainen, Auteur ; Klaus Rose, Auteur ; Yukihiro Kusano, Auteur ; Juha Mannila, Auteur ; Lisa Wikström, Auteur Année de publication : 2020 Article en page(s) : p. 305-314 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact
Brillance (optique)
CelluloseLa cellulose est un glucide constitué d'une chaîne linéaire de molécules de D-Glucose (entre 200 et 14 000) et principal constituant des végétaux et en particulier de la paroi de leurs cellules.
Copolymères
Couches minces
Hydrophobie
Matériaux -- Propriétés barrières
Matières plastiques -- Revêtement
Microscopie électronique à balayage
Nanofibres
Rugosité
Sol-gel, ProcédéIndex. décimale : 667.9 Revêtements et enduits Résumé : Single-layer films from cellulose nanofibrils on a plastic support were coated with sol–gel coated with inorganic–organic copolymers (ORMOCER®s), consisting of inorganic Si–O–Si-based networks combined with ceramic (Al–O– and Zr–O–) groups and special organic fluoroalkyl chain containing functional groups. Sol–gel coatings decreased the surface hydrophilicity and water vapor transmission rate. The water contact angle of uncoated films was 24°, indicating high affinity between water and the cellulose nanofibrils. All sol–gel coatings tested increased the surface hydrophobicity with the contact angles ranging between 54° and 102°. The water vapor transmission rates varied between 230 and 410 g/m2/day. With UV curable highly organically crosslinked coating, the water vapor transmission rate was decreased by 77% as compared to uncoated film. The uncoated film had oxygen transmission rates of 0.7 and 107 cc/m2/day at 50% and 80% RH, respectively. At high humidity conditions, the films tended to swell, thus allowing permeation to increase. Sol–gel coatings significantly improved the oxygen barrier properties especially at 80% RH. The transmission rates varied between 0.4 and 0.5 cc/m2/day (50% RH) and between 51 and 86 cc/m2/day (80% RH). Note de contenu : - Cellulose nanofibrils (CNF) and CNF films
- Sol-gel coatings
- Scanning electron microscopy (SEM)
- Roughness
- Gloss
- Contact angle measurements
- Oxygen permeation
- Water vapor permeationDOI : 10.1007/s11998-019-00292-5 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00292-5.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33747
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 1 (01/2020) . - p. 305-314[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21517 - Périodique Bibliothèque principale Documentaires Disponible Impact of hybrid self-assembled nanophase particle-based sol–gel coatings on the localized corrosion behavior of modified 9Cr–1Mo steel in chloride medium / S. Ramya in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)
[article]
Titre : Impact of hybrid self-assembled nanophase particle-based sol–gel coatings on the localized corrosion behavior of modified 9Cr–1Mo steel in chloride medium Type de document : texte imprimé Auteurs : S. Ramya, Auteur ; C. Arunchandran, Auteur ; R. P. Georges, Auteur ; C. Thinaharan, Auteur ; U. Kamachi Mudali, Auteur Année de publication : 2017 Article en page(s) : p. 129-140 Note générale : Bibliogr. Langues : Américain (ame) 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.
Adhésion
Anticorrosion
Epaisseur -- Mesure
Métaux -- Revêtements protecteurs
Sol-gel, Procédé
Spectroscopie d'impédance électrochimique
Systèmes auto-assemblésIndex. décimale : 667.9 Revêtements et enduits Résumé : Corrosion protection coatings were developed based on a hybrid self-assembled nanophase particle process (HSNAP) for the localized corrosion resistance of modified 9Cr–1Mo steel in 0.05 M NaCl solution. The coating sol was prepared using silane-zirconia precursors and a polymeric crosslinking agent. Scanning electron microscopy and X-ray photoelectron spectroscopy were used to study the morphology and composition of the coated specimens, respectively. The thickness of the coatings was determined by a thickness gauge meter and Raman imaging analysis. The corrosion resistance of coated specimens was analyzed using electrochemical impedance spectroscopy, and it was observed that HSNAP-coated specimens showed superior resistance to localized corrosion than the as-received specimens in chloride medium. Note de contenu : - MATERIALS AND METHODS : Development of coatings - Characterization of coated mod.9Cr-1Mo
- RESULTS AND DISCUSSION : Surface characterization of coated specimens - Adherence strength test and thickness measurements on the HSZ- and HSNAP-coated samples - Electrochemical studies on coated specimens - Post exposure microscopic studiesDOI : 10.1007/s11998-016-9836-y En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9836-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27795
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Code-barres Cote Support Localisation Section Disponibilité 18674 - Périodique Bibliothèque principale Documentaires Disponible Improving surface properties by laser-based drying, gelation, and densification of printed sol–gel coatings / Dominik Hawelka in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 1 (01/2014)
PermalinkIn vitro bactericidal effect of ultrasonically sol–gel-coated novel CuO/TiO2/PEG/cotton nanocomposite for wound care / Arman Khani in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 3 (05/2017)
PermalinkInfluence of adding multiwalled carbon nanotubes on the adhesive strength of composite epoxy/sol-gel materials / Heming Wang ; Robert Akid in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 2 (03/2016)
PermalinkInfluence of radical photoinitiator content on UV curing process and UV-cured hybrid sol–gel films / Anaïs Even in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 2 (03/2020)
PermalinkInorganic-organic hybrid sol-gel coatings / Brijesh Mishra in PAINTINDIA, Vol. LXIV, N° 10 (10/2014)
PermalinkInsights into functional polymer-based organic-inorganic nanocomposites as leather finishes / Qianqian Fan in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 1 (Année 2019)
PermalinkInvestigation of the mechanical and thermal fatigue properties of hybrid sol–gel coatings applied to AA2024 substrates / Garrett Melia in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 6 (11/2016)
PermalinkLeather surface refinement with application of the TIO2-SIO2-GLYMO Nanocomposite and lacquer coating / Meruyert Kaygusuz in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 5 (09-10/2018)
PermalinkLighting the way forward : radcure developments / Sandy Morrison in SURFACE COATINGS INTERNATIONAL, Vol. 95, 1 (02/2012)
PermalinkLignin based colorant : modified black liquor for leather surface coating application / P. Balasubramanian in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 10 (10/2018)
PermalinkPermalinkMatériaux pour la nanofabrication photoinduite / Ali Dirani in L'ACTUALITE CHIMIQUE, N° 347 (12/2010)
PermalinkLes matériaux sol-gels pour l’électronique / Pierre Roy in L'ACTUALITE CHIMIQUE, N° 3 (03/2002)
PermalinkPermalinkMontmorillonite nanoclay-based self-healing coatings on AA 2024-T4 / S. Manasa in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 4 (07/2018)
PermalinkPermalinkNanoclay-based self-healing, corrosion protection coatings on aluminum, A356.0 and AZ91 substrates / S. Manasa in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 5 (09/2017)
PermalinkNanoparticules pour l'optique / Jean-Pierre Boilot in L'ACTUALITE CHIMIQUE, N° 290-291 (10-11/2005)
PermalinkNanosilica reinforced waterborne siloxane-polyurethane nanocomposites prepared via "click" coupling in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 4 (07/2014)
PermalinkNanotechnology and coatings Q & A / Vinayak M. Natu in PAINTINDIA, Vol. LVIII, N° 10 (10/2008)
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