Effect of thermal modification on the colour changes of oak wood

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of thermal modification on the colour changes of oak wood

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Effect of thermal modification on the colour changes of oak wood

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Wood Research

ISSN

1336-4561

e-ISSN

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Svazek periodika

60

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

12

Strana od-do

385-396

Kód UT WoS článku

000358108200005

EID výsledku v databázi Scopus

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