The analysis of tropical wood discoloration caused by simulated sunlight

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F12%3A00174177" target="_blank" >RIV/62156489:43410/12:00174177 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

The analysis of tropical wood discoloration caused by simulated sunlight

Popis výsledku v původním jazyce

This study investigated the wood surface discoloration due to simulated sunlight of tropical woods native to South America. Wood of jatoba (Hymenaea courbaril L.), massaranduba (Manilkara bidentata A. Chev.), tigerwood (Astronium graveolens Jacq.), angelim amargoso (Vatairea spp.), angelim pedra (Hymenolobium spp.) and angelim vermellho (Dinizia excelsa Ducke) was exposed to a treatment by xenon-arc lamp light simulating outdoor sunlight, for 144 hours. Colour measurement of exposed and non-exposed areas of samples was performed by means of a spectrophotometer measuring in CIEL*a*b* colour system. The resulting wood discoloration was evaluated according to the value of the overall colour change dE*. Changes of particular parameters (L*,a* and b*) werealso observed during exposure. The wood surface darkened rapidly during the first hours of exposure to simulated sunlight. Later, samples showed only a slight increase in lightness. Within one wood species the colour changes were more sig

Název v anglickém jazyce

The analysis of tropical wood discoloration caused by simulated sunlight

Popis výsledku anglicky

This study investigated the wood surface discoloration due to simulated sunlight of tropical woods native to South America. Wood of jatoba (Hymenaea courbaril L.), massaranduba (Manilkara bidentata A. Chev.), tigerwood (Astronium graveolens Jacq.), angelim amargoso (Vatairea spp.), angelim pedra (Hymenolobium spp.) and angelim vermellho (Dinizia excelsa Ducke) was exposed to a treatment by xenon-arc lamp light simulating outdoor sunlight, for 144 hours. Colour measurement of exposed and non-exposed areas of samples was performed by means of a spectrophotometer measuring in CIEL*a*b* colour system. The resulting wood discoloration was evaluated according to the value of the overall colour change dE*. Changes of particular parameters (L*,a* and b*) werealso observed during exposure. The wood surface darkened rapidly during the first hours of exposure to simulated sunlight. Later, samples showed only a slight increase in lightness. Within one wood species the colour changes were more sig

Druh

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

CEP obor

GK - Lesnictví

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

European Journal of Wood and Wood industries

ISSN

0018-3768

e-ISSN

—

Svazek periodika

70

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

7

Strana od-do

263-269

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—