Impact of thermal modification on color and chemical changes of spruce and oak wood

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F18%3A77734" target="_blank" >RIV/60460709:41320/18:77734 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s10086-018-1721-0" target="_blank" >http://dx.doi.org/10.1007/s10086-018-1721-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10086-018-1721-0" target="_blank" >10.1007/s10086-018-1721-0</a>

Result language
angličtina
Original language name
Impact of thermal modification on color and chemical changes of spruce and oak wood
Original language description
Thermal modification of wood is an environment-friendly alternative method for improving several properties of wood without the use of chemicals. This paper deals with the examination of color and chemical changes in spruce (Picea abies L.) and oak wood (Quercus robur F.) that occur due to thermal treatment. The thermal modification was performed at 160, 180, and 210 degrees C according to thermowood process. The color changes were measured by the spectrophotometer and described in the L a b color system. Chemical changes were examined by wet chemistry methods, infrared spectroscopy and liquid chromatography. During the experiment, oak samples showed smaller color changes than spruce samples at all temperature values. During thermal modification, the content of cellulose, lignin, and extractives increases, however, the hemicellulose content drops by 58,85% (oak) and by 37,40% (spruce). In addition to deacetylation, new carbonyl and carboxyl groups are formed as a result of oxidation. Bonds in lignin
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20502 - Paper and wood

Project
<a href="/en/project/EF16_019%2F0000803" target="_blank" >EF16_019/0000803: Advanced research supporting the forestry and wood-processing sector´s adaptation to global change and the 4th industrial revolution</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)