Effect of Microwave and Steam Treatment on the Thermo-Hygro-Plasticity of Beech Wood
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F21%3A43920481" target="_blank" >RIV/62156489:43410/21:43920481 - isvavai.cz</a>
Result on the web
<a href="https://dx.doi.org/10.15376/biores.16.4.8338-8352" target="_blank" >https://dx.doi.org/10.15376/biores.16.4.8338-8352</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.15376/biores.16.4.8338-8352" target="_blank" >10.15376/biores.16.4.8338-8352</a>
Alternative languages
Result language
angličtina
Original language name
Effect of Microwave and Steam Treatment on the Thermo-Hygro-Plasticity of Beech Wood
Original language description
The effects of microwave and steam treatment were analyzed relative to the immediate (thermo-hygro-plasticity) and post-assessed (permanent changes) properties of wood. The study was conducted using European beech (Fagus sylvatica L.) standard and 1.5 times up-scaled (only for microwave-heated and reference samples) bending specimens tested in a static three-point loading mode. The specimens were plasticized by heat and moisture (1) separately and (2) simultaneously by heating moist specimens using (i) various microwave regimes in continuous mode, and (ii) heated saturated steam in discontinuous mode. Oven-dried specimens tested at 20 oC served as references. The thermo-hygro-plasticity was studied immediately after treatment, whereas the permanent changes were assessed after oven-drying of plasticized specimens to 0% moisture content. Permanent structural changes were analyzed using scanning electron microscopy. Microwave treatment increased the plasticity of wood (decreasing the modulus of elasticity by 70%) comparably to steam treatment, when the output moisture content was 30% or higher. A similar degree of plasticity was found in up-scaled specimens heated by microwaves. Further analyses confirmed that microwave treatment did not cause any permanent damage to wood structure or reduce mechanical performance. The results showed that microwave treatment is an efficient alternative to steaming when plasticizing moist wood.
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
<a href="/en/project/GJ19-25171Y" target="_blank" >GJ19-25171Y: Multi-scale Hygro-thermo-mechanical Behavior of Modified Wood-based Materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
BioResources
ISSN
1930-2126
e-ISSN
1930-2126
Volume of the periodical
16
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
8338-8352
UT code for WoS article
000748249200030
EID of the result in the Scopus database
2-s2.0-85137266490