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Matériaux vitreux auto-cicatrisants pour application à haute température, élaborés sous forme de couches minces in MATERIAUX & TECHNIQUES, Vol. 103, N° 4 (2015)
[article]
Titre : Matériaux vitreux auto-cicatrisants pour application à haute température, élaborés sous forme de couches minces Type de document : texte imprimé Année de publication : 2015 Article en page(s) : 5 p. Note générale : Bibliogr. Langues : Français (fre) Catégories : Couches minces
Dépôt par laser pulsé
Matériaux autoréparants
Revêtement autoréparant
VerreIndex. décimale : 620.14 Céramique et matériaux voisins : brique, tuile, matériaux réfractaires, verre Résumé : La mise en Å“uvre de matériaux vitreux auto-cicatrisants en couches minces permet d’envisager des applications en tant que revêtements protecteurs dans le domaine de l’aéronautique par exemple. Nous illustrons ici la faisabilité de déposer ces matériaux en films minces par ablation laser pulsée (Pulsed Laser Deposition, PLD). L’efficacité de ces revêtements auto-cicatrisants est démontrée par suivi in situ grâce à la microscopie environnementale (MEBE-HT). Référence de l'article : 406 DOI : http://dx.doi.org/10.1051/mattech/2015034 En ligne : http://www.mattech-journal.org/articles/mattech/pdf/2015/04/mt150043.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24812
in MATERIAUX & TECHNIQUES > Vol. 103, N° 4 (2015) . - 5 p.[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17537 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Medicines for a longer life : Microcapsules increase durability of protective finishes Type de document : texte imprimé Auteurs : Gerald O. Wilson, Auteur Année de publication : 2014 Article en page(s) : p. 36-41 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosion
Epoxydes
Essais de brouillard salin
Matériaux intelligents
Métaux -- Revêtements protecteurs
Microcapsules
Revêtement autoréparant:Peinture autoréparante
Revêtements -- Additifs:Peinture -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : Different types of self-healing coatings are described. Microcapsule-based systems have now been cleveloped which contain self-healing and protective agents that can fully heal small-scale damage and prevent undercutting of the coating where larger scale damage is prevent. This effectively entends maintenance cycles on metal structures. Note de contenu : - Examples of non-autonomic healing in materials
- Autonomic healing requires a different approach
- The economic case for self-healing coatings
- Hexavalent chromium : an early self-healing system
- Using self-healing to improve protective coatings
- Self-healing of small-scale cracking demonstrated
- Dealing with coatings damage on larger scales
- Life extension in protective coatings
- Salt spray test confirms self-healing performance
- Broader applications for self-healing are possibleEn ligne : https://drive.google.com/file/d/1R3AzLUnBRY0qemV2vP9Ca48Bx2mJbKtQ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21871
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 9 (09/2014) . - p. 36-41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16486 - Périodique Bibliothèque principale Documentaires Disponible Microencapsulation techniques and their potential in self-healing coatings / Sakshi Arora in PAINTINDIA, Vol. LXX, N° 12 (12/2020)
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Titre : Microencapsulation techniques and their potential in self-healing coatings Type de document : texte imprimé Auteurs : Sakshi Arora, Auteur Année de publication : 2020 Article en page(s) : p. 55-66 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Core-Shell
Inhibiteurs (chimie)
Revêtement autoréparant
Revêtement autoréparant:Peinture autocicatrisanteIndex. décimale : 667.9 Revêtements et enduits Résumé : Microencapsulation can be described as the process of enclosing micron-sized particles of solids or droplets of liquids or gases in an inert shell in order to isolate and protect them from the external environment. The concept of encapsulation of materials is inspired from micro to macro-scale examples in the nature like a seed or a cell for protection against environmental impacts. This technology can be used for valuable applications requiring controlled and targeted release, masking odors and protection of reactive or sensitive additives used for different applications. The fabrication of microcapsules can been attained by chemical, physico-chemical and physico-mechanical processes depending on the nature of the core and the shell materials, efficiency of encapsulation and the shell thickness required. The microencapsulation has found application in numerous fields like adhesives, carbonless copy paper, phase change materials, perfumes with its growing technical readiness for use in the protective coatings. The microcapsules based on shell made up of thermoset resins containing healing agents of different chemical nature (inhibitors) have been investigated to serve as self-healing coatings. This paper reviews the different techniques used for microencapsulation and their applications with an emphasis on its use for the self-healing coatings. Note de contenu : - SYNTHESIS OF MICROCAPSULESynthesis of microcapsules
- CHEMICAL METHODS : Interfacial polymerization
- IN-SITU POLYMERIZATION
- PHYSICO-CHEMICAL METHODS : Layer-by-layer (LBL) - Rapid expansion of supercritical fluids
- PHYSICO-MECHANICAL PROCESSES : Co-extrusion
- SPRAY-DRYING : Top spray - Tangential spray - Spinning disk - Microcapsules for the self-healing coatings - Two component system - Single component system - Application microcapsules in the coating
- Fig. 1 : Cost and complexity comparison of different encapsulation techniques)
- Fig. 2 : Schematic representation of microcapsule
- Fig. 3 : Morphology of microcapsules
- Fig. 4 : Techniques used for microencapsulation
- Fig. 5 : Interfacial polymerization process for microcapsule fabrication
- Fig. 6 : In-situ polymerization process for microcapsule formation
- Fig. 7 : Urea-formaldehyde capsules containing dicyclopentadiene healing agent
- Fig. 8 : Coacervation process for microcapsule formation a. Dispersion of core material in the shell polymer solution b. Separation of polymer rich phase (Coacervate) c. Coating of core material by microdroplets of the coacervate d. Coalescence of coacervate to form continuous shell around the core particles
- Fig. 9 : Layer-by-layer methodology
- Fig. 10 : SiO, nanocontainers and its incorporation in Zr0,/SiO, coating
- Fig. 11 : Microencapsulation by Rapid Expansion of Supercritical Solution (RESS)
- Fig. 12 : Microencapsulation by co-extrusion process
- Fig. 13 : Microencapsultion by spray-drying process
- Fig. 14 : Schematic representation of three types of spraying chamber
- Fig. 15 : Microencapsulation by spanning disk action
- Fig. 16 : Application of microcapsules in coatings
- Table 1 : Particle sizes obtained from differentm icroencapsulation processes
- Table 2 : Two-component healing systems
- Table 3 : Single component healing systems
- Table 4 : Sample matrix as analyzed by Kumar et alEn ligne : https://drive.google.com/file/d/1Ewtp9LSvoV6wMDtCuXL9TlueLm9-6T-m/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35201
in PAINTINDIA > Vol. LXX, N° 12 (12/2020) . - p. 55-66[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22556 - Périodique Bibliothèque principale Documentaires Disponible Modelling of self-healing materials using discrete and continuum methods / N. Filipovic in SURFACE COATINGS INTERNATIONAL, Vol. 95, 2 (04/2012)
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Titre : Modelling of self-healing materials using discrete and continuum methods Type de document : texte imprimé Auteurs : N. Filipovic, Auteur ; A. Jovanovic, Auteur ; D. Petrovic, Auteur ; M. Obradovic, Auteur ; D. Balos, Auteur ; M. Kojic, Auteur Année de publication : 2012 Article en page(s) : p. 74-79 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosifs
Anticorrosion
Revêtement autoréparantIndex. décimale : 667.9 Revêtements et enduits Résumé : Corrosion degradation of materials and structures is one of the major issues that lead to depreciation of capital investment materials. There are active and passive approaches to corrosion protection. Passive corrosion protection is achieved by deposition of a barrier layer that prevents contact of the material with the corrosive environment. Active corrosion protection decreases the corrosion rate when the main barrier is damaged. Note de contenu : - METHODS : Nanocontainer healing concept - DPD model - FEM model
- RESULTS : DPD model results - FEM resultsEn ligne : https://drive.google.com/file/d/1admDMgQ9fmZES1YeZLO5Y-PSHaFvCNpT/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14424
in SURFACE COATINGS INTERNATIONAL > Vol. 95, 2 (04/2012) . - p. 74-79[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13826 - Périodique Bibliothèque principale Documentaires Disponible Modern 2K PU waterborne / Robert Reyer in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4580 (01/2013)
[article]
Titre : Modern 2K PU waterborne Type de document : texte imprimé Auteurs : Robert Reyer, Auteur ; Martin Melchiors, Auteur ; Thomas Stingl, Auteur Année de publication : 2013 Article en page(s) : p. 27-28 + p. 40 Langues : Anglais (eng) Catégories : Brillance (optique)
Dispersions et suspensions
Polyacrylates
Polyuréthanes
Résistance aux conditions climatiques
Résistance chimique
Revêtement autoréparant:Peinture autoréparante
Revêtements bi-composant:Peinture bi-composant
Revêtements en phase aqueuse:Peinture en phase aqueuse
Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : Waterborne 2K polyurethane coatings based on the new generation of cosolvent-free, OH-functional polyurethane dispersions and internally activated polyacrylate dispersions are excellently suited for the use in transportation (eg trains, trucks, buses and ACE market) clearcoats and topcoats as well as for metal, plastic and wood substrates. Depending on the coating formulation, they prove to be hard, yet still flexible, even in cold weather.
Additional values to mention are the corresponding coatings are high-gloss, weather resistant, highly chemical resistant and, depending on the dispersion used, characterised by a pronounced self-healing effect after scratching or are very fast drying, meaning the oven temperature for drying coated objects can be reduced to cut energy costs and CO2 emissions. These new PU and PAC dispersions are already used in the field of general industrial, wood and furniture coating. The dispersions presented here make it possible, using waterborne products, to fulfill or even exceed the requirements imposed on coatings in market segments previously dominated by conventional coating systems and they are very eco-friendly thanks to their low VOC content. A significant expansion is expected in the use of waterborne polyurethane coatings in the medium term. These new building blocks, therefore, will add a new chapter to the overall success story of aliphatic 2K polyurethane coatings.Note de contenu : - Internal activation cuts energy costs and reduces CO2 emissions
- Self-healing effect makes micro-scratches disappear
- High gloss and high resistanceEn ligne : https://drive.google.com/file/d/1dM8HZJQJSTIhuBaT6opIUI6GvnDW2mkc/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17195
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 203, N° 4580 (01/2013) . - p. 27-28 + p. 40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14550 - Périodique Bibliothèque principale Documentaires Disponible Modern 2K PU waterborne coatings : Environment-friendly efficiently and with high-performance / Robert Reyer in DOUBLE LIAISON, N° 592 (05/2013)
PermalinkMontmorillonite nanoclay-based self-healing coatings on AA 2024-T4 / S. Manasa in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 4 (07/2018)
PermalinkNanoclay-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)
PermalinkNothing sticks to these surfaces / Ana Vinuales in EUROPEAN COATINGS JOURNAL (ECJ), N° 11 (11/2021)
PermalinkPermalinkPreparation and property investigation of epoxy/amine micro/nanocapsule based self-healing coatings / T. E. Sadrabadi in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 5 (11/2018)
PermalinkPreparation of PVA/PU/PUA microcapsules and application in self-healing two-component waterborne polyurethane coatings / Xinmeng Xu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 3 (05/2022)
PermalinkPermalinkRecent progress of self-healing coatings for magnesium alloys protection / N. A. Johari in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 3 (05/2022)
PermalinkPermalinkPermalinkSalt-controlled self-healing nanogel composite embedded with epoxy as environmentally friendly organic coating / Ayman M. Atta in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 5 (09/2017)
PermalinkSelf-healing and corrosion performance of polyurethane coating containing polyurethane microcapsules / Hanieh Fathi Fathabadi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 5 (09/2021)
PermalinkSelf healing coatings / Deeplaxmi L. Chawan in PAINTINDIA, Vol. LVII, N° 4 (04/2007)
PermalinkSelf-healing hybrid coating of phytic acid/silane for improving the corrosion resistance of magnesium alloy / Yan Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)
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