Permeability and mechanical behaviour of microwave pre-treated Norway spruce ripewood

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F21%3A43920375" target="_blank" >RIV/62156489:43410/21:43920375 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.37763/wr.1336-4561/66.4.569581" target="_blank" >http://dx.doi.org/10.37763/wr.1336-4561/66.4.569581</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37763/wr.1336-4561/66.4.569581" target="_blank" >10.37763/wr.1336-4561/66.4.569581</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Permeability and mechanical behaviour of microwave pre-treated Norway spruce ripewood

Popis výsledku v původním jazyce

This is a study of the influence of microwave (MW) pre-treatment on the permeability of Norway spruce ripewood (Picea abies L. Karst) as it affects its mechanical properties. Specimens were treated under variable moisture content, MW intensity, and impregnation processes. According to the results, the specimens with an initial moisture content of 45-65% exhibited the highest permeability values compared to reference samples. An insignificant difference was found between MW pre-treatments at 2 and 3 kW. Statistically significant results were found after long-time (24h) vacuum-pressure impregnation (LP). The average retention value following LP was 132 kg.m(-3), which is almost three times greater than the MW-treated groups impregnated in a short-time vacuum-pressure process. The average depth of penetration after LP was 2.0 mm and the proportion of the impregnation area following LP was 17.6%. MW pre-treatment had no effect on the impregnability or the mechanical properties of the wood; other MW regimes are open for further examination.

Název v anglickém jazyce

Permeability and mechanical behaviour of microwave pre-treated Norway spruce ripewood

Popis výsledku anglicky

This is a study of the influence of microwave (MW) pre-treatment on the permeability of Norway spruce ripewood (Picea abies L. Karst) as it affects its mechanical properties. Specimens were treated under variable moisture content, MW intensity, and impregnation processes. According to the results, the specimens with an initial moisture content of 45-65% exhibited the highest permeability values compared to reference samples. An insignificant difference was found between MW pre-treatments at 2 and 3 kW. Statistically significant results were found after long-time (24h) vacuum-pressure impregnation (LP). The average retention value following LP was 132 kg.m(-3), which is almost three times greater than the MW-treated groups impregnated in a short-time vacuum-pressure process. The average depth of penetration after LP was 2.0 mm and the proportion of the impregnation area following LP was 17.6%. MW pre-treatment had no effect on the impregnability or the mechanical properties of the wood; other MW regimes are open for further examination.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20502 - Paper and wood

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Wood Research

ISSN

1336-4561

e-ISSN

—

Svazek periodika

66

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

13

Strana od-do

569-581

Kód UT WoS článku

000696935400005

EID výsledku v databázi Scopus

2-s2.0-85115941227