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Microstructure of chemically modified wood using X-ray computed tomography in relation to wetting properties
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, School of Architecture and the Built Environment, Department of Civil and Architectural Engineering, Building Materials.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. Department of Chemistry Surface and Corrosion Science, KTH Royal Institute of Technology.
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2017 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 71, no 2, 119-128 p.Article in journal (Refereed) Published
Abstract [en]

X-ray computed tomography (XCT) was utilized to visualize and quantify the 2D and 3D microstructure of acetylated southern yellow pine (pine) and maple, as well as furfurylated pine samples. The total porosity and the porosity of different cell types, as well as cell wall thickness and maximum opening of tracheid lumens were evaluated. The wetting properties (swelling and capillary uptake) were related to these microstructural characteristics. The data show significant changes in the wood structure for furfurylated pine sapwood samples, including a change in tracheid shape and filling of tracheids by furan polymer. In contrast, no such changes were noted for the acetylated pine samples at the high resolution of 0.8

Place, publisher, year, edition, pages
Walter de Gruyter, 2017. Vol. 71, no 2, 119-128 p.
Keyword [en]
acetylation, cell wall thickness, furfurylation, hardwood, microstructure, porosity, softwood, sub-micron X-ray computed tomography, tracheid, wettability
National Category
Wood Science Physical Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-27771DOI: 10.1515/hf-2015-0227OAI: oai:DiVA.org:ri-27771DiVA: diva2:1062580
Available from: 2017-01-07 Created: 2017-01-07 Last updated: 2017-04-26Bibliographically approved

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