The effect of heat and ammonia treatment on colour response of oak wood (Quercus robur L.) and comparison of some physical and mechanical properties

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F13%3A00208748" target="_blank" >RIV/62156489:43410/13:00208748 - 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

The effect of heat and ammonia treatment on colour response of oak wood (Quercus robur L.) and comparison of some physical and mechanical properties

Original language description

In this paper the effect of heat and ammonia treatment on the change in colour of oak wood (Quercus robur.) and comparison of physical and mechanical properties were investigated. Wood specimens were made from heartwood and sapwood in dimensions 30x30x30mm3. The specimens were subjected to heat treatment at 180°C and 230°C for 2 and 4 hours, others were treated by ammonia for 24 hours. After these processes, CIELAB colour, hardness, EMC, density and MOE of wood were tested in comparison with untreatedsamples. The results show that the heat treatment contributed to darkening of sapwood and heartwood and the total colour change increased up to 38.47 units (CIELAB) in the radial direction and 37.75 units (CIELAB) in the tangential direction. Previous research into ammonia treatment shows that the most significant changes were noticed after 1 day. The colour changes between sapwood and heartwood were more noticeable in ammonia treatment than in the case of heat treatment. All other obser

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JJ - Other materials

OECD FORD branch

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Project

<a href="/en/project/EE2.3.20.0269" target="_blank" >EE2.3.20.0269: The establishment of an international research team for the development of new wood-based materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2013

Confidentiality

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

Name of the periodical

Maderas. Ciencia y tecnología

ISSN

0718-221X

e-ISSN

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Volume of the periodical

15

Issue of the periodical within the volume

3

Country of publishing house

CL - CHILE

Number of pages

15

Pages from-to

375-389

UT code for WoS article

326385400010

EID of the result in the Scopus database

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