| Titre : |
Comparative examination of adhesive and cohesive properties of fluorinated coatings on stone/tile surfaces |
| Type de document : |
texte imprimé |
| Auteurs : |
Hau-Nan Lee, Auteur ; Anilkumar Raghavanpillai, Auteur ; Jing Li, Auteur ; Joel M. Pollino, Auteur ; Brad M. Rosen, Auteur ; Siddhartha R. Shenoy, Auteur |
| Année de publication : |
2014 |
| Article en page(s) : |
p. 933-942 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Délaminage
Durée de vie (Ingénierie)
Essais de résilience
Fluoropolymères
Microscopie à force atomique
Phosphate fluoré
Pierre
Rayures
Revêtements protecteurs
Rupture (mécanique)
Tuiles
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A NanoScratch methodology was used to evaluate the relative adhesive and cohesive strength of fluorinated poly(methyl methacrylate-co-methacrylic acid) and fluorinated phosphate coatings on stone and tile surfaces. In general, all coatings showed ability to bind to the stone and tile surfaces, and polymer-based coatings expressed stronger adhesion compared to a small-molecule fluorinated phosphate coating. Also, anionic fluorinated polymers containing methacrylic acid (MAA) residues in the ammonium carboxylate form adhered more strongly compared to corresponding acidic polymer counterparts. In addition, anionic fluorinated polymers, shown to adhere more strongly to granite than marble, possibly due to strong Lewis acid-base interaction between carboxylate and aluminosilicates. Conversely, the fluorinated polymers, bearing the MAA side-chains in their free-acid form, bound more strongly to marble via possible Brønsted acid-base interactions between carboxylic acid and calcium carbonate. Lastly, in most cases, comparable fracture thresholds were observed for the same coating material on different substrates. This was expected since fracture threshold is a measure of the mechanical strength of the coating material, independent of the substrate difference. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Preparation of coating candidates - Preparation of coatings on the substrates - NanoScratch test - AFM intrumentation
- RESULTS AND DISCUSSION : Experimental design - Substrate characterization - Coating characterization - NanoScratch results |
| DOI : |
10.1007/s11998-014-9607-6 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9607-6.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22316 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 11, N° 6 (11/2014) . - p. 933-942
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