Effect of thermal modification on the colour changes of oak wood

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F15%3A67174" target="_blank" >RIV/60460709:41320/15:67174 - 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 thermal modification on the colour changes of oak wood
Original language description
This paper deals with the examination of colour and colour changes of oak wood. The colour parameters (L*, a*, b*, and ?E*) were determined by the CIE-L*a*b* colour space on native and thermally modified wood oak wood as well as on sub-fossil oak wood. The thermal modification has been carried out at four different temperatures: 160, 180, 210 and 240°C for oak wood. The results show that heat treatment resulted in the darkening of wood tissues and the lightness (L*) of oak wood decreased. The values ofa* and b* also decreased, although the decline of parameter a* was only slight, while the parameter b* dropped more significantly. The overall colour change (?E*) increased with raising the temperature of modification with a maximum at 240°C. All the investigated characteristics have achieved the biggest changes at the highest temperature of modification. The equalized colours of thermally modified wood can significantly increase the use of products. Colour can be an important indicator
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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