| Titre : |
The influence of coating color, heartwood and sapwood, on moisture content and growth of microorganisms on the surface during outdoor exposure of Norway spruce boards |
| Type de document : |
texte imprimé |
| Auteurs : |
Tinh Sjökvist, Auteur ; Åsa Blom, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 819-826 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Algues marines
Bioaccumulation
Bois -- Revêtements protecteurs
Bois extérieurs
Champignons microscopiques
Conifères
Crustacés
Durée de vie (Ingénierie)
Essais (technologie)
Polyacryliques
Polyalkydes
Revêtements organiques
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The use of wood contributes to the global transformation into a bio-based community. There are, however, challenges. The growth of mold, rot fungi, and algae on the coated surface is of major concern due to decreased aesthetic service life and shorter maintenance intervals. The colonization of a coated surface requires the presence of spores, nutrients, and a sufficient amount of water. This work studied the influence of using heartwood and sapwood on the moisture content (MC) and growth of microorganisms on the surface of coated Norway spruce boards [Picea abies (L.) Karst.]. The results revealed a relationship of heartwood samples having a lower MC and a lower or equal degree of biological growth on the coated surface than sapwood samples. The relationship was valid through a range of densities (309–548 kg/m3) and two different coating systems based on either an alkyd or an acrylic resin. Furthermore, the choice of coating color (red compared to white) affected the MC as the red-colored samples had a lower MC, combined with no growth of microorganisms. |
| Note de contenu : |
- Table 1 : Density and growth ring width of the samples with the standard deviation listed in parentheses
- Measured MC and biological growth during the test period (October 12, 2011-August 26, 2016) with the standard deviation given in parentheses |
| DOI : |
10.1007/s11998-018-00165-3 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-018-00165-3.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32593 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 3 (05/2019) . - p. 819-826
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