Internal stresses in inorganic-organic hybrid coatings for plastics / Eberhard Jürgens in DOUBLE LIAISON, N° 551 (06/2006)

[article]  inDOUBLE LIAISON > N° 551 (06/2006) . - p. 32-37 Titre : Internal stresses in inorganic-organic hybrid coatings for plastics Type de document : texte imprimé Auteurs : Eberhard Jürgens, Auteur ; Marcel Piens, Auteur ; Mireille Wenkin, Auteur ; Ulrich Ittera, Auteur ; Michael Mager, Auteur Année de publication : 2006 Article en page(s) : p. 32-37 Note générale : Bibliogr. Langues : Français (fre) Index. décimale : 667.9 Revêtements et enduits Résumé : Important durability properties of coatings are influenced by the formation of internal stresses. Delamination and crack formation are examples of defect structures possibly due to them. The measurement of internal stresses in organic coatings is well-known. A cantilever method specially developed for this purpose was applied to characterize stresses in very thing (5µm) inorganic-organic hybrid coatings based on sol-gel chemistry. The application was performed by spraying and a primer was used. Hybrid coatings of different types were characterized with respect to the evolution of internal stresses due to film formation, to changes of temperature, and to changes of humidity and were compared to polyurethane coatings. A method based on thermal stress measurements was applied to determine the thermal expansion coefficient of this kind of hybrid coatings. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3584 [article]

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Non-emissive blocking agents / Christoph Gürtler in EUROPEAN COATINGS JOURNAL (ECJ), N° 03/2005 (03/2005)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 03/2005 (03/2005) . - p. 80-83 Titre : Non-emissive blocking agents Type de document : texte imprimé Auteurs : Christoph Gürtler, Auteur ; Malte Homann, Auteur ; Michael Mager, Auteur ; Michael Schelhaas, Auteur ; Thomas Stingl, Auteur Année de publication : 2005 Article en page(s) : p. 80-83 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Polyurethanes - The overall performance properties and ease of application make one-component polyurethane systems popular in the surface coatings industry. In conventional systems, the blocking agents tend to be released and can migrate out of the coating system. When this happens they do not contribute to crosslinking of film formation and could cause changes to the coating properties. A new, non-emissive blocking agent, cyclopentanone-2-car-boxyethylester, combats these problems and has been shown to be efective in helping polyurethane systems to flexibilize epoxy resins. En ligne : https://drive.google.com/file/d/1IgXVxDFl_9XJ3YC3g8vGRjmyWNxJ3V0z/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8910 [article]

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