Impact of thermal modification on the chemical changes and impact bending strength of European oak and Norway spruce wood

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F19%3A81128" target="_blank" >RIV/60460709:41320/19:81128 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0263822318334263?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0263822318334263?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compstruct.2019.02.091" target="_blank" >10.1016/j.compstruct.2019.02.091</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Impact of thermal modification on the chemical changes and impact bending strength of European oak and Norway spruce wood

Popis výsledku v původním jazyce

This paper deals with the effect of various thermal modification temperatures (160 degrees C, 180 degrees C and 210 degrees C) on changes in the basic chemical components of wood, and the effect of these changes in wood on the impact bending strength (IBS) of European oak (Quercus robur L.) and Norway spruce (Picea abies (L.) H. Karst) wood in comparison with unmodified wood. The IBS was determined according to ISO 13061-10 (2017), and the chemical composition (extractives, lignin, holocellulose, cellulose and hemicelluloses) by NREL methods (wet chemical methods). During the thermal modification the IBS increased in both wood species at first (temperature of 160 degrees C), but at higher temperatures these values gradually decreased. The highest drop in IBS values, found at a temperature of 210 degrees C, was 32,2% for oak and 39,8% for spruce. Thermal modification caused an increase in the relative content of extractives, lignin and cellulose, but the relative content of hemicelluloses in the wood

Název v anglickém jazyce

Impact of thermal modification on the chemical changes and impact bending strength of European oak and Norway spruce wood

Popis výsledku anglicky

This paper deals with the effect of various thermal modification temperatures (160 degrees C, 180 degrees C and 210 degrees C) on changes in the basic chemical components of wood, and the effect of these changes in wood on the impact bending strength (IBS) of European oak (Quercus robur L.) and Norway spruce (Picea abies (L.) H. Karst) wood in comparison with unmodified wood. The IBS was determined according to ISO 13061-10 (2017), and the chemical composition (extractives, lignin, holocellulose, cellulose and hemicelluloses) by NREL methods (wet chemical methods). During the thermal modification the IBS increased in both wood species at first (temperature of 160 degrees C), but at higher temperatures these values gradually decreased. The highest drop in IBS values, found at a temperature of 210 degrees C, was 32,2% for oak and 39,8% for spruce. Thermal modification caused an increase in the relative content of extractives, lignin and cellulose, but the relative content of hemicelluloses in the wood

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20502 - Paper and wood

Projekt

<a href="/cs/project/EF16_019%2F0000803" target="_blank" >EF16_019/0000803: Excelentní Výzkum jako podpora Adaptace lesnictví a dřevařství na globální změnu a 4. průmyslovou revoluci</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

COMPOSITE STRUCTURES

ISSN

0263-8223

e-ISSN

—

Svazek periodika

216

Číslo periodika v rámci svazku

2019

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

80-88

Kód UT WoS článku

000461162500009

EID výsledku v databázi Scopus

2-s2.0-85062238128