THE EFFECT OF OUTDOOR WEATHERING OF THERMALLY MODIFIED SPRUCE AND PINE WOODS ON THEIR SURFACE PROPERTIES

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F23%3A97109" target="_blank" >RIV/60460709:41320/23:97109 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.17423/afx.2023.65.1.02" target="_blank" >http://dx.doi.org/10.17423/afx.2023.65.1.02</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17423/afx.2023.65.1.02" target="_blank" >10.17423/afx.2023.65.1.02</a>

Jazyk výsledku

angličtina

Název v původním jazyce

THE EFFECT OF OUTDOOR WEATHERING OF THERMALLY MODIFIED SPRUCE AND PINE WOODS ON THEIR SURFACE PROPERTIES

Popis výsledku v původním jazyce

Products from thermally modified wood used outdoors should be stable against sun, rain, wind, and biological agents. The effect of 1-to 24-month outdoor weathering of the Norway spruce (Picea abies) and Scots pine (Pinus sylvestris) thermally modified woods Thermo- D produced in Oy Lunawood Ltd Finland (TWs) on their selected surface properties - colour, gloss, roughness, and mould resistance is analysed in the paper. With prolonged weathering, the surfaces of both Thermo-D wood samples lost their original yellow-red shadow. They continuously turned greyer - in the CIE L*a*b* colour system, they obtained greener and bluer colours, together with the logarithmic increase in the total colour difference & UDelta;??????*????????????. Surfaces of both Thermo-D wood samples within the first four months of outdoor weathering turned much lighter with a higher gloss. However, they got darker and matter due to adsorbing soot and dirt. Similar changes, i.e., as in the lightness and gloss, occurred in the roughness of weathered Thermo-D woods, which firstly decreased and subsequently increased with further prolongation of weathering. Moulds Aspergillus niger and Penicillium brevicompactum, in all cases, intensively attacked spruce and pine wood - natural wood, Thermo-D wood, weathered natural wood, weathered Thermo-D wood.

Název v anglickém jazyce

THE EFFECT OF OUTDOOR WEATHERING OF THERMALLY MODIFIED SPRUCE AND PINE WOODS ON THEIR SURFACE PROPERTIES

Popis výsledku anglicky

Products from thermally modified wood used outdoors should be stable against sun, rain, wind, and biological agents. The effect of 1-to 24-month outdoor weathering of the Norway spruce (Picea abies) and Scots pine (Pinus sylvestris) thermally modified woods Thermo- D produced in Oy Lunawood Ltd Finland (TWs) on their selected surface properties - colour, gloss, roughness, and mould resistance is analysed in the paper. With prolonged weathering, the surfaces of both Thermo-D wood samples lost their original yellow-red shadow. They continuously turned greyer - in the CIE L*a*b* colour system, they obtained greener and bluer colours, together with the logarithmic increase in the total colour difference & UDelta;??????*????????????. Surfaces of both Thermo-D wood samples within the first four months of outdoor weathering turned much lighter with a higher gloss. However, they got darker and matter due to adsorbing soot and dirt. Similar changes, i.e., as in the lightness and gloss, occurred in the roughness of weathered Thermo-D woods, which firstly decreased and subsequently increased with further prolongation of weathering. Moulds Aspergillus niger and Penicillium brevicompactum, in all cases, intensively attacked spruce and pine wood - natural wood, Thermo-D wood, weathered natural wood, weathered Thermo-D 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)

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Acta Facultatis Xylologiae

ISSN

1336-3824

e-ISSN

1336-3824

Svazek periodika

65

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

12

Strana od-do

23-34

Kód UT WoS článku

001020413500002

EID výsledku v databázi Scopus

2-s2.0-85161946072