Impact of thermal modification on color and chemical changes of African padauk, merbau, mahogany, and iroko wood species
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F23%3A43923065" target="_blank" >RIV/62156489:43410/23:43923065 - isvavai.cz</a>
Alternative codes found
RIV/60460709:41320/23:97017
Result on the web
<a href="https://doi.org/10.1515/rams-2022-0277" target="_blank" >https://doi.org/10.1515/rams-2022-0277</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/rams-2022-0277" target="_blank" >10.1515/rams-2022-0277</a>
Alternative languages
Result language
angličtina
Original language name
Impact of thermal modification on color and chemical changes of African padauk, merbau, mahogany, and iroko wood species
Original language description
Thermal modification is an environment-friendly technology for improving various wood properties, especially the dimensional stability, decay resistance, and color homogeneity. In this work, four tropical wood species (African padauk, merbau, mahogany, and iroko) were thermally modified by the ThermoWood process. The influence of heat treatment on the color and chemical changes of wood was studied by spectrophotometry, Fourier transform infrared (FTIR) spectroscopy, and wet chemistry methods. As the temperature increased, a decrease in lightness (L*) and a simultaneous decrease in chromatic values (a*, b*) were observed, indicating darkening and browning of the wood surface. As a result of the heat treatment, the relative content of hemicelluloses decreased the most in merbau and mahogany, while the thermal stability of iroko and African padauk was higher. All examined wood species showed a strong correlation between the lightness difference value (ΔL*) and the content of hemicelluloses (r = 0.88-0.96). The FTIR spectroscopy showed that the breakdown of C═O and C═C bonds in hemicelluloses and lignin plays an important role in the formation of chromophoric structures responsible for the color changes in the 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/EF16_019%2F0000803" target="_blank" >EF16_019/0000803: Advanced research supporting the forestry and wood-processing sector´s adaptation to global change and the 4th industrial revolution</a><br>
Continuities
O - Projekt operacniho programu
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Reviews on Advanced Materials Science
ISSN
1606-5131
e-ISSN
1605-8127
Volume of the periodical
62
Issue of the periodical within the volume
1
Country of publishing house
PL - POLAND
Number of pages
10
Pages from-to
20220277
UT code for WoS article
000933622300001
EID of the result in the Scopus database
2-s2.0-85148675270