| Titre : |
Performance of organic nanoparticle coatings for hydrophobization of hardwood surfaces |
| Type de document : |
texte imprimé |
| Auteurs : |
Pieter Samyn, Auteur ; Dirk Stanssens, Auteur ; Angela Paredes, Auteur ; Gero Becker, Auteur |
| Année de publication : |
2014 |
| Article en page(s) : |
p. 461-471 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Angle de contact
Bois -- Revêtements protecteurs
Caractérisation
Huile de palme et constituants
Hydrophobie
Morphologie (matériaux)
Nanoparticules
Rugosité
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The protection of wood surfaces against water is a primary requirement to enhance their life-time and durability. In this article, a hydrophobic surface modification of selected hardwood surfaces (including high-density (HD) and low-density (LD) samples) is presented, by coating them with waterborne imidized nanoparticles under pure conditions or with vegetable oil. The performance of both nanoparticle coatings relative to noncoated and oil-coated samples was evaluated by water contact angles, microscopy, and optical profilometry. The pure nanoparticle coatings often increase the hydrophobicity, but they do not yet form a fully protective layer due to their porous structure after drying. The nanoparticle coatings with vegetable oil form a continuous layer with a maximum contact angle of 118°. The coating formation highly depends on the wood density (and resulting surface porosity), resulting in spreading of the aqueous dispersion on HD wood and penetration on LD wood. A thin continuous nanoparticle coating with incorporated vegetable oil provides highest contact angles, as the roughness of the original wood fibers remains visible in the surface profile. |
| Note de contenu : |
- EXPERIMENTAL DETAILS : Wood substrates - Nanoparticle coating and application - Characterization
- RESULTS AND DISCUSSION : Contact angle measurements - Surface morphology - Surface roughness |
| DOI : |
10.1007/s11998-014-9576-9 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9576-9.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21482 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 11, N° 3 (05/2014) . - p. 461-471
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Performance of organic nanoparticle coatings for hydrophobization of hardwood surfaces in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 3 (05/2014)
