Density profile and microstructural analysis of densified beech wood (Fagus sylvatica L.) plasticized by microwave treatment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F18%3A43912758" target="_blank" >RIV/62156489:43410/18:43912758 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s00107-017-1173-z" target="_blank" >https://doi.org/10.1007/s00107-017-1173-z</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00107-017-1173-z" target="_blank" >10.1007/s00107-017-1173-z</a>
Alternative languages
Result language
angličtina
Original language name
Density profile and microstructural analysis of densified beech wood (Fagus sylvatica L.) plasticized by microwave treatment
Original language description
This study was carried out in order to determine the efficacy of microwave (MW) plasticization for wood densification purposes. The plasticization process was carried out using a continuous feed laboratory MW at a frequency of 2.45 GHz. European beech (Fagus sylvatica L.) specimens measuring 50 mm x 40 mm x 8 mm were MW treated (plasticized) with an output of 3.5 kW at a conveyor speed of 0.4 m/min. Afterwards, MW plasticized specimens were densified with a ratio of 50%. Microscopic structure changes of densified wood were detected using a scanning electron microscope (SEM) and density profiles were measured using the X-ray densitography. An average density of 677 kg m(-3) and 771 kg m(-3) increased significantly to 951 kg m(-3) for radially densified and to 1194 kg m(-3) for tangentially densified specimens. X-ray densitography results show uniformity of density profiles through specimen thickness, which confirmed the evenly plasticized volume of wood. Microscopic structure observation revealed that the MW plasticization was not accompanied by any fractures, and deformations present in the densified wood were due to viscoelastic buckling of cell walls without crack propagation. Therefore, MW treatment can be considered as an effective method for wood plasticization.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20502 - Paper and wood
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Journal of Wood and Wood Products
ISSN
0018-3768
e-ISSN
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Volume of the periodical
76
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
105-111
UT code for WoS article
000419447100009
EID of the result in the Scopus database
2-s2.0-85015189952