Effect of temperature on the color changes of wood during thermal modification

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F15%3A67968" target="_blank" >RIV/60460709:41320/15:67968 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effect of temperature on the color changes of wood during thermal modification
Original language description
This paper deals with the determination of color change for oak, birch and pine wood. Color changes were measured on native and thermally modified wood. The thermal modification was carried out at four different temperatures: 160 °C, 180 °C, 210 °C and 240 °C. Color changes were evaluated according to CIE L*a*b* method by parameters L*, a*, b* and dE*. After the heat treatment, the lightness L* of wood was reduced for all wood species. The a* values had a similar character for oak and birch wood, whilethe values of pine showed an opposite character. Increasing the temperature resulted in a decrease in the values of the parameter b* for oak and birch wood. However, pine wood achieved the highest b* values during thermal modification at a temperature of160 °C. Further increases in temperature led to a gradual lowering of these values. The overall color change dE* gradually grew with the increase in temperature for oak and birch, while pine had the highest value at a temperature of 160
Czech name
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Czech description
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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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Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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