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Partager le résultat de cette rechercheCO2-laser treatment of indium tin oxide nanoparticle coatings on flexible polyethylene terephthalate substrates / Tobias Königer in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 2 (03/2010)
Titre : CO2-laser treatment of indium tin oxide nanoparticle coatings on flexible polyethylene terephthalate substrates Type de document : texte imprimé Auteurs : Tobias Königer, Auteur ; Thomas Rechtenwald, Auteur ; Ihab Al-Naimi, Auteur ; Thomas Frick, Auteur ; Michael schmidtM, Auteur ; Helmut Münstedt, Auteur Année de publication : 2010 Article en page(s) : p. 261-269 Note générale : Bibliogr. Langues : Américain (ame) Tags : Revêtements 'Nanoparticule oxyde indium-étain' ITO 'Substrats Polyéthylène téréphtalate' 'Traitement laser CO2' 'Essai flexion oscillatoire' Index. décimale : 667.9 Revêtements et enduits Résumé : A CO2-laser treatment was used to improve the electrical conductivity of coatings of indium tin oxide (ITO) nanoparticles on flexible polyethyleneterephthalate (PET) substrates. The electrical conductivity and the transparency of CO2-laser-treated ITO nanoparticle coatings were characterized with regard to the application as transparent electrodes. Furthermore, the stability of the electrical conductivity under oscillatory bending was investigated. A specific resistance of 0.12 Ω cm is obtained by CO2-laser treatment without thermally damaging the PET film. The improvement of the electrical conductivity can be explained by a slight sinter neck formation. For a film thickness of 3 μm, a sheet resistance of 400 Ω/□ and a transmission in the visible range of 80 % were achieved. The stability of the electrical conductivity of CO2-laser-treated ITO nanoparticle coatings under bending was investigated using a specially constructed device for the application of various oscillatory bending loads. For a bending radius of 10 mm, the sheet resistance does not exceed 1000 Ω/□ after 300 bending cycles. Compared to commercial sputtered ITO coatings, CO2-laser-treated ITO nanoparticle coatings show a significant higher stability under oscillatory bending. DOI : 10.1007/s11998-009-9181-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9181-5.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9072
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 2 (03/2010) . - p. 261-269[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012083 - Périodique Bibliothèque principale Documentaires Disponible
Titre : 'Anti'-finish automotive leather - vision and contradiction Type de document : texte imprimé Auteurs : Brigitte Wegner, Auteur ; Gerhard Wolf, Auteur Année de publication : 2011 Article en page(s) : p. 38-40 Langues : Anglais (eng) Tags : 'Cuir automobile' 'Concept anti-finition' Antibruit 'Anti-salissant' Anti-abrasion 'Anti-vieillissement' 'Anti-hydrolyse' 'Anti-émission CO2' Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Car manufacturers have been paying increasing attention to automotive interiors in recent years because they are seeking to distance themselves from their competitors and to create a specific image for their brand. Consumers are encouraged to treat the interior of their vehicles like their own living room, with an individual design and high standards of comfort and serviceability.
As many different materials are used in automotive interiors leather is in competition with textiles, synthetics, Alcantara etc.
The question here is what distinghuishes leather from other materials, and the sample answer is the natural feel and natural appearance. It is this feature that is primarily responsible for leather's image as a luxury, premium-grade material. Leather will have to retain its natural character if it is to defent its position in the market, but this conflicts with the market's demands for other features such as resistance to abrasion, etc.
BASF's 'anti-finish concept for automotive interiors is an approach that makes it possible to pursue a long-term vision for automotive leather while, at the same time, fulfilling the short-term demands of original equipment manufacturers (OEMs). In finishing, the aim must always to be retain the natural character of the leather, ideally by dispensing with the finish altogether or, at least, by reducing the amount of finish or making it invisible. The underlying premise is that applying less finish or 'anti'-finish adds more value to the leather.
These demands are certainly not easy to satisfy, but they represent the current trend in the market for automotive leather in Europe and increasingly in North America and Asia. The goal of the leather industry has to be to develop 'anti'-finishes that will maintain and enhance the image of leather as a premium quality material. Improved seating comfort, a better feel and visual appearance are important arguments. Manfuacturers along the whole leather value chain should have a vital interest in developing this 'anti-finish' concept for automotive interiors. But as well as pursuing a long-term vision, manufacturers also need to pay attention to the short-term, daily demands of the OEMs.
Apart for the visual appearance and feel of the leather, most demands concentrate on physical fastness and serviceability. These demands can be summarised under the prefix 'anti', ie anti-squeak, anti-soiling, anti-hydrolysis and anti-abrasion. As shown in figure 2, this can be further extended and ecological demands can also be illustrated with 'anti' terms like anti emission, anti-RSL (restricted substance list), anti-CO2 and anti-deforestation. Anti-finish concept can be applied flexibily according to what is demanded. There is often no ideal solution but at least it illustrates the problems and unresolved issues and makes a solution easier to find.Note de contenu : - Anti-squeak
- Anti-soiling
- Anti-abrasion
- Anti-ageing and anti-hydrolysis
- Anti-emissionEn ligne : https://drive.google.com/file/d/1Q7YjCP0O9ZOIarH1UojiLFHIyToQTbJ6/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11932
in LEATHER INTERNATIONAL > Vol. 213, N° 4812 (07/2011) . - p. 38-40[article]Réservation
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Titre : La pyrolyse laser : Une méthode souple de production de nanopoudres Type de document : texte imprimé Auteurs : Nathalie Herlin-Boime, Auteur ; Yann Leconte, Auteur ; Dominique Porterat, Auteur Année de publication : 2008 Article en page(s) : p. 14-15 Note générale : Bibliogr. Langues : Français (fre) Catégories : Nanoparticules -- Synthèse
Oxydes
Photochimie
PyrolyseLa pyrolyse est la décomposition ou thermolyse d'un composé organique par la chaleur pour obtenir d'autres produits (gaz et matière) qu'il ne contenait pas. L'opération est réalisée en l'absence d'oxygène ou en atmosphère pauvre en oxygène pour éviter l'oxydation et la combustion (L’opération ne produit donc pas de flamme). Il s'agit du premier stade de transformation thermique après la déshydratation.
Elle permet généralement d'obtenir un solide carboné, une huile et un gaz. Elle débute à un niveau de température relativement bas (à partir de 200 °C) et se poursuit jusqu'à 1 000 °C environ. Selon la température, la proportion des trois composés résultants est différente.
SiliciumTags : 'Laser CO2' 'Réaction flux' 'Particules nanométriques' 'Oxydes catalytiques' Index. décimale : 541.35 Photochimie Résumé : La pyrolyse laser est une méthode efficace de synthèse de particules (silicium, oxydes pour la catalyse...) de tailles nanométriques. L'appareillage est schématisé et la synthèse illustrée. En ligne : https://new.societechimiquedefrance.fr/numero/la-pyrolyse-laser-une-methode-soup [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2543
in L'ACTUALITE CHIMIQUE > N° 317 (03/2008) . - p. 14-15[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 009964 - Périodique Bibliothèque principale Documentaires Disponible
