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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F15%3A43906609" target="_blank" >RIV/62156489:43410/15:43906609 - isvavai.cz</a>

Výsledek na webu

<a href="http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_2_3242_Cermak_Dimensional_Stability_Thermally_Modified_Wood/3486" target="_blank" >http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_2_3242_Cermak_Dimensional_Stability_Thermally_Modified_Wood/3486</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.15376/biores.10.2.3242-3253" target="_blank" >10.15376/biores.10.2.3242-3253</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

The dimensional stability of thermally modified wood exposed to several wetting-drying cycles was analyzed. Specimens of dimensions 15x15x15 mm were thermally modified at 180 and 200 degrees C. The mass loss and chemical composition of the wood were determined in order to evaluate the effect and degree of modification. Afterwards, the radial, tangential, and volumetric swelling, anti-swelling efficiency, water absorption, water repellence 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 dimensionalstability 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 tre

Název v anglickém jazyce

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

Popis výsledku anglicky

The dimensional stability of thermally modified wood exposed to several wetting-drying cycles was analyzed. Specimens of dimensions 15x15x15 mm were thermally modified at 180 and 200 degrees C. The mass loss and chemical composition of the wood were determined in order to evaluate the effect and degree of modification. Afterwards, the radial, tangential, and volumetric swelling, anti-swelling efficiency, water absorption, water repellence 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 dimensionalstability 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 tre

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

BioResources

ISSN

1930-2126

e-ISSN

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Svazek periodika

10

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

3242-3253

Kód UT WoS článku

000354642000101

EID výsledku v databázi Scopus

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