Analysis of Dimensional Stability of Thermally Modified Wood Affected by Wetting-Drying Cycles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F15%3A43907051" target="_blank" >RIV/62156489:43410/15:43907051 - isvavai.cz</a>
Result on the web
<a href="http://www.swst.org/meetings/AM15/pdfs/proceedings_2015.pdf" target="_blank" >http://www.swst.org/meetings/AM15/pdfs/proceedings_2015.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Analysis of Dimensional Stability of Thermally Modified Wood Affected by Wetting-Drying Cycles
Original language description
The dimensional stability of thermally modified wood exposed to several wetting-drying cycles was analyzed. Specimens of dimensions 15x15x15 mm3 were thermally modified at 180 and 200 oC. The mass loss and chemical composition of the wood were determinedin order to evaluate the effect and degree of modification. Afterwards, the radial, tangential, and volumetric swelling, anti-swelling efficiency and mass loss due to wetting-drying cycles were determined and compared. The specimen's mass tended to decrease with each additional rewetting cycle. Additional extractives that were formed via thermal decomposition leached out during wetting cycles. Thermal modification positively affected the dimensional stability of all investigated species. The wood's swelling was reduced, a result attributed to hemicellulose degradation. Dimensional stability was improved by 24 to 30% following mild treatment and by 26 to 54% following more severe treatment. When specimens were exposed to six consecutive
Czech name
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Czech description
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Project
<a href="/en/project/EE2.3.30.0031" target="_blank" >EE2.3.30.0031: Postdoc contracts at MENDELU technical and ekonomical research</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 58th International Convention of Society of Wood Science and Technology. Renewable Materials and the Bio-Economy
ISBN
978-0-9817876-5-7
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
598-606
Publisher name
Society of Wood Science and Technology
Place of publication
Monona
Event location
Jackson, Wyoming
Event date
Jun 7, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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