Etch damage to automotive coatings / K. Henderson in COATINGS TECH, Vol. 2, N° 18 (07/2005)  

[article]  inCOATINGS TECH > Vol. 2, N° 18 (07/2005) . - p. 38-43 Titre : Etch damage to automotive coatings Type de document : texte imprimé Auteurs : K. Henderson, Auteur ; K. Spitler, Auteur ; R. Hunt, Auteur Année de publication : 2005 Article en page(s) : p. 38-43 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : The influence of exposure conditions on paint damage due to etch is a complex problem. The general assumption is that acid moisture evaporates on the surface, concentrating acidity, thereby decomposing the coating and leaving a nonreversible ring, or water spot, on the surface. This study provides statistical evidence that this assumption is valid. Further, it appears that evaporating dew is a much more significant contributor to etching than rain. In fact, there is some evidence that the rain may even mitigate the etching problem by washing the residue from the panel’s surface. There is also some evidence that thermal shocks of 10°C in a 15–20 minute interval may also contribute to etching. All of these conclusions could be strengthened by evaluations of the panels at shorter intervals. En ligne : https://drive.google.com/file/d/1OIaZRA5KmzWNOdb-48crSArhk6TqV0BC/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5507 [article]

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The effect of weathering and thermal treatment on the scratch recovery characteristics of clearcoats / Christopher M. Seubert in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 2 (03/2010)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 2 (03/2010) . - p. 159-166 Titre : The effect of weathering and thermal treatment on the scratch recovery characteristics of clearcoats Type de document : texte imprimé Auteurs : Christopher M. Seubert, Auteur ; Mark E. Nichols, Auteur ; K. Henderson, Auteur ; Markus Mechtel, Auteur ; Thomas Klimmasch, Auteur ; Torsten Pohl, Auteur Année de publication : 2010 Article en page(s) : p. 159-166 Note générale : Bibliogr. Langues : Américain (ame) Tags : 'Peinture  automobile'  Clearcoat  Uréthane  'Résistance  éraflure'  'Nano-éraflure'  'Macro-éraflure'  Guérison Index. décimale : 667.9 Revêtements et enduits Résumé : The scratch and scratch recovery characteristics of two clearcoats, a polyurethane and an acrylic/melamine/silane clearcoat, were measured by a variety of methods. On most size scales tested, the polyurethane possessed superior scratch and mar resistance. The polyurethane also possessed improved scratch recovery after warming for 2 h at 60°C. After 2000 h of accelerated weathering, the scratch recovery characteristics of the polyurethane were largely maintained, while the acrylic/melamine/silane showed a significant drop in scratch recovery performance. Performance of both coatings was related to T g, hardness, and crosslink density. DOI : 10.1007/s11998-009-9190-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9190-4.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9062 [article]

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