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

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

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

CELLULOSE CHEMISTRY AND TECHNOLOGY

ISSN

0576-9787

e-ISSN

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Svazek periodika

49

Číslo periodika v rámci svazku

9-10

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

789-798

Kód UT WoS článku

000368648800008

EID výsledku v databázi Scopus

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