Titre : |
Coating permeability on wood : Developing effective methods to measure the permeability of coatings on wood |
Type de document : |
texte imprimé |
Auteurs : |
Peter Svane, Auteur ; Gerhard Grüll, Auteur |
Année de publication : |
2017 |
Article en page(s) : |
p. 38-42 |
Note générale : |
Bibliogr. |
Langues : |
Anglais (eng) |
Catégories : |
Bois -- Revêtements Mesure Perméabilité Vapeur d'eau
|
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
Water vapour permeability of wood coatings is an essential property to steer moisture dynamics and to enable entrapped water to escape. Ideally, permeability measurements are made on a wood substrate, but the variability of the material poses a problem. Two methods are presented that overcome the difficulty of wood substrate variability and offer simple and flexible ways of sample preparation and measurement. |
Note de contenu : |
- Natural wood variation poses measurement problem
- Two approaches
- A flexible method
- Simplified and precise measurement
- FIGURES : 1. Panel of spruce wood with coating on top, ring grooves drilled to prepara coated disc samples - 2. Samples produced from the coated wood panel, coated discs and coated residual material, uncoated discs and rest of the panel - 3. Vacuum holder and sanding machine for parallel sanding of the samples from the reverse side to a defined thickness - 4. Cutting veneer to appropriate size - 5. Sealing cup to veneer substrate. Cup upside down - 6. Suitable "cup". Supplier : Hofstätter & Ebbesen - 7. Filling with saturated salt solution though a 3 mm hole drilled in the side of cup - 8. Application of coating system directly on the cup |
En ligne : |
https://drive.google.com/file/d/1ETysp6DVa6wtKoVG3MNLculEr_kp01R0/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28749 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6 (06/2017) . - p. 38-42