The effect of thermal treatment with saturated water steam on the properties of birch wood

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F22%3A00559157" target="_blank" >RIV/61389013:_____/22:00559157 - isvavai.cz</a>

Výsledek na webu

<a href="https://df.tuzvo.sk/sk/archive-afxz" target="_blank" >https://df.tuzvo.sk/sk/archive-afxz</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17423/afx.2022.64.1.01" target="_blank" >10.17423/afx.2022.64.1.01</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of thermal treatment with saturated water steam on the properties of birch wood

Popis výsledku v původním jazyce

Industrially important properties of wood can be changed due to the modification of birch wood (Betula pendula L.) after the process of thermal treatment with saturated water steam. The birch wood was modified by saturated water steam at 125 ± 2.5 °C for 8 hours and at a pressure of 0.18 MPa. The water contact angle of steam-treated birch wood increased from 42.1° (for untreated birch wood) to 52.4° (for steam-treated birch wood), and the stability of water drop on steam-treated birch wood surface increased. FTIR spectra showed an increase in C=O and glycoside bonds concentration on the surface of steam-treated birch wood, but the concentration of C–O–C groups decreased. XPS measurements confirmed that the concentration of oxygen as well as C=O and C–O–O groups on the surface of steam-treated birch wood showed an increment in comparison with the native wood sample. SEM micro photos confirmed the minor changes of birch wood cells due to the action of saturated water steam modification.

Název v anglickém jazyce

The effect of thermal treatment with saturated water steam on the properties of birch wood

Popis výsledku anglicky

Industrially important properties of wood can be changed due to the modification of birch wood (Betula pendula L.) after the process of thermal treatment with saturated water steam. The birch wood was modified by saturated water steam at 125 ± 2.5 °C for 8 hours and at a pressure of 0.18 MPa. The water contact angle of steam-treated birch wood increased from 42.1° (for untreated birch wood) to 52.4° (for steam-treated birch wood), and the stability of water drop on steam-treated birch wood surface increased. FTIR spectra showed an increase in C=O and glycoside bonds concentration on the surface of steam-treated birch wood, but the concentration of C–O–C groups decreased. XPS measurements confirmed that the concentration of oxygen as well as C=O and C–O–O groups on the surface of steam-treated birch wood showed an increment in comparison with the native wood sample. SEM micro photos confirmed the minor changes of birch wood cells due to the action of saturated water steam modification.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Acta Facultatis Xylologiae Zvolen

ISSN

1336-3824

e-ISSN

1336-3824

Svazek periodika

64

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

10

Strana od-do

5-14

Kód UT WoS článku

000814886300001

EID výsledku v databázi Scopus

2-s2.0-85129878203