Cold atmospheric pressure plasma facilitated nano-structuring of thermally modified wood

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F19%3A43916607" target="_blank" >RIV/62156489:43410/19:43916607 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/19:00111046

Výsledek na webu

<a href="https://doi.org/10.1007/s00226-019-01128-6" target="_blank" >https://doi.org/10.1007/s00226-019-01128-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00226-019-01128-6" target="_blank" >10.1007/s00226-019-01128-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cold atmospheric pressure plasma facilitated nano-structuring of thermally modified wood

Popis výsledku v původním jazyce

Recently, a nanoscale structuring effect on the wood surface after plasma treatment by diffuse coplanar surface barrier discharge was observed. This type of discharge was applied to the treatment of aspen (Populus tremuloides) and thermally modified aspen wood, and the effect of treatment time and distance between the planar electrode and the sample on the formation of nano-structures was investigated. These structures may influence surface properties of wood, which can result in different adhesion strengths, soaking time of liquids and their penetration depth. In this study, the previously proposed mechanism of plasma etching for the formation of these nano-structures was studied. It was also proposed that these structures are composed of lignin. The formed structures were examined by confocal and scanning electron microscopy and attenuated total reflectance Fourier-transform infrared spectroscopy. The size of the structures was in the range of 20-100 nm, but no effect on the mean height of the surface was detected, i.e., the microscale surface roughness was unchanged. Increased treatment time influences surface structuring as a result of plasma etching. The optimal gap was found to be around 0.2-0.3 mm for this configuration. Infrared spectra indicated that plasma-treated surfaces exhibited a higher content of aromatic structures present in lignin.

Název v anglickém jazyce

Cold atmospheric pressure plasma facilitated nano-structuring of thermally modified wood

Popis výsledku anglicky

Recently, a nanoscale structuring effect on the wood surface after plasma treatment by diffuse coplanar surface barrier discharge was observed. This type of discharge was applied to the treatment of aspen (Populus tremuloides) and thermally modified aspen wood, and the effect of treatment time and distance between the planar electrode and the sample on the formation of nano-structures was investigated. These structures may influence surface properties of wood, which can result in different adhesion strengths, soaking time of liquids and their penetration depth. In this study, the previously proposed mechanism of plasma etching for the formation of these nano-structures was studied. It was also proposed that these structures are composed of lignin. The formed structures were examined by confocal and scanning electron microscopy and attenuated total reflectance Fourier-transform infrared spectroscopy. The size of the structures was in the range of 20-100 nm, but no effect on the mean height of the surface was detected, i.e., the microscale surface roughness was unchanged. Increased treatment time influences surface structuring as a result of plasma etching. The optimal gap was found to be around 0.2-0.3 mm for this configuration. Infrared spectra indicated that plasma-treated surfaces exhibited a higher content of aromatic structures present in lignin.

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/LO1411" target="_blank" >LO1411: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Wood Science and Technology

ISSN

0043-7719

e-ISSN

—

Svazek periodika

53

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

1339-1352

Kód UT WoS článku

000491802300001

EID výsledku v databázi Scopus

2-s2.0-85074205525