The effect of wetting cycles on moisture behaviour of thermally modified Scots pine (Pinus sylvestris L.) wood
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43110%2F16%3A43906610" target="_blank" >RIV/62156489:43110/16:43906610 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s10853-015-9471-5" target="_blank" >http://dx.doi.org/10.1007/s10853-015-9471-5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10853-015-9471-5" target="_blank" >10.1007/s10853-015-9471-5</a>
Alternative languages
Result language
angličtina
Original language name
The effect of wetting cycles on moisture behaviour of thermally modified Scots pine (Pinus sylvestris L.) wood
Original language description
The moisture behaviour of thermally modified Scots pine (Pinus sylvestris L.) exposed to cyclic conditions was analysed. Specimens of dimensions 1591595mm3were thermally modified at 180oC (TM1) and 220oC (TM2) using atmospheric pressure and superheated steam. Radial, tangential, volumetric swelling and anti-swelling efficiency (ASE) were calculated during six consecutive drying-soaking cycles. Afterwards, additional specimens were exposed to ten relative humidity cycles (0 and 95 %) at temperature 25 and 40oC in order to analyse its influence on sorption behaviour. Application of thermal modification led to significant reduction of swelling from original18.4-13.3 % for TM1and to 10.5 % for TM2. However, after exposure to six consecutive soaking-drying cycles, the swelling of control specimens slightly decreased, whereas the swelling of thermally modified specimens increased. Dueto the increased swelling after repeated cycles, the original ASE (28.6 and 42.7 %) decreased to 22.5 % for TM1and to36.88 % for TM2. The presence of leachable compounds and release of internal stresses are mainly attributed to that phenomenon. The EMC of the reference specimens decreases over the repeated humidity cycles for approximately1 %-units. Same trend was found for the mild thermal modification TM1, but decreasing only in the range of0.5 %-units. However, the EMC of the TM2specimensduring humidity cycles behaved differently. The results provide a better insight into details of thermal modification of wood and its behaviour under cyclic conditions.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JJ - Other materials
OECD FORD branch
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Result continuities
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)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Materials Science
ISSN
0022-2461
e-ISSN
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Volume of the periodical
51
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
1504-1511
UT code for WoS article
000367612500035
EID of the result in the Scopus database
2-s2.0-84952985879