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Wettability of acetylated Southern yellow pine
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP - Sveriges Tekniska Forskningsinstitut, SP Trä. KTH Royal Institute of Technology, Sweden.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP - Sveriges Tekniska Forskningsinstitut, SP Trä.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP - Sveriges Tekniska Forskningsinstitut, SP Trä. KTH Royal Institute of Technology, Sweden.ORCID iD: 0000-0001-7014-6230
Eastman Chemical Company, USA.
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2013 (English)In: International Wood Products Journal, ISSN 2042-6445, E-ISSN 2042-6453, Vol. 4, no 3, p. 197-203Article in journal (Refereed) Published
Abstract [en]

The aim of this work was to achieve a better understanding of the wettability, i.e. liquids wetting and sorption characteristics (or penetrability), of acetylated Southern yellow pine (SYP) including probable differences in such characteristics between early- or latewood. Matched samples of acetylated and untreated SYP boards were prepared. The wettability of the samples were measured by the Wilhelmy technique using standard probe liquids as well as two different sample coatings, a cationic knot sealer and an acrylic based dye. The results showed that latewood regions of the acetylated wood had a noticeably lower uptake of the non-polar low surface tension liquid octane as well as the polar high surface tension liquid water compared with latewood of the untreated controls. Contact angle analysis based on the Lewis acid-base concept indicated that the acetylated wood is predominantly Lewis basic. A preferential wetting of the knot sealer was observed on the acetylated wood.

Place, publisher, year, edition, pages
2013. Vol. 4, no 3, p. 197-203
Keywords [en]
Acetylated wood, Coatings, Penetrability, Wettability, Contact angle analysis, Lewis acid-base, Liquid water, Sorption characteristics, Southern yellow pines, Untreated control, Liquids, Surface tension, Wood, Wetting, Acetylation
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ri:diva-47502DOI: 10.1179/2042645313Y.0000000045Scopus ID: 2-s2.0-84885608890OAI: oai:DiVA.org:ri-47502DiVA, id: diva2:1465303
Available from: 2020-09-09 Created: 2020-09-09 Last updated: 2020-12-02Bibliographically approved

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Segerholm, Kristoffer

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