[article]
| 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 |
in DOUBLE LIAISON > N° 551 (06/2006) . - p. 32-37
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