Plasma Treatment of Thermally Modified and Unmodified Norway
Spruce Wood by Diffuse Coplanar Surface Barrier Discharge

J 2021

Plasma Treatment of Thermally Modified and Unmodified Norway Spruce Wood by Diffuse Coplanar Surface Barrier Discharge

KOŠELOVÁ, Zuzana; Jozef RÁHEĽ a Oleksandr GALMIZ

Základní údaje

Originální název

Plasma Treatment of Thermally Modified and Unmodified Norway Spruce Wood by Diffuse Coplanar Surface Barrier Discharge

Autoři

KOŠELOVÁ, Zuzana; Jozef RÁHEĽ a Oleksandr GALMIZ

Vydání

Coatings, Basel, MDPI, 2021, 2079-6412

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.236

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/21:00120964

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Norway spruce; thermally treated wood; DCSBD; plasma treatment; surface free energy

Štítky

14312030, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 27. 2. 2024 15:55, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

This work deals with the treatment of wood surfaces by diffuse coplanar surface barrier discharge (DCSBD) generated at atmospheric pressure. The effect of the distance of the sample from the electrode surface and the composition of the working gas in the chamber was studied. Norway spruce (Picea abies) wood, both unmodified and thermally modified, was chosen as the investigated material. The change in the surface free energy (SFE) of the wood surface was investigated by contact angles measurements. Chemical and structural changes were studied using infrared spectroscopy, X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). Activation at a 0.15 mm gap from the electrode led in all cases to an increase in the SFE. The largest change in SFE components was recorded for wood thermally modified to 200 °C. At a 1 mm gap from the electrode increase of SFE occurred only when oxygen (O2) and argon (Ar) were used as working gas. Treatment in air and nitrogen (N2) resulted in an anomalous reduction of SFE. With the growing temperature of thermal modification, this hydrophobization effect became less pronounced. The results point out the importance of precise position control during the DCSBD mediated plasma treatment. A slight reduction of SFE on thermally modified spruce was achieved also by short term ultra-violet (UV) light exposure, generated by DCSBD.

Návaznosti

90097, velká výzkumná infrastruktura

Název: CEPLANT

Citovat

KOŠELOVÁ, Zuzana; Jozef RÁHEĽ a Oleksandr GALMIZ. Plasma Treatment of Thermally Modified and Unmodified Norway Spruce Wood by Diffuse Coplanar Surface Barrier Discharge. Coatings. Basel: MDPI, 2021, roč. 11, č. 1, s. 1-16. ISSN 2079-6412. Dostupné z: https://doi.org/10.3390/coatings11010040.

@article{1727717,
   author = {Košelová, Zuzana and Ráheľ, Jozef and Galmiz, Oleksandr},
   article_location = {Basel},
   article_number = {1},
   doi = {https://doi.org/10.3390/coatings11010040},
   keywords = {Norway spruce; thermally treated wood; DCSBD; plasma treatment; surface free energy},
   language = {eng},
   issn = {2079-6412},
   journal = {Coatings},
   title = {Plasma Treatment of Thermally Modified and Unmodified Norway Spruce Wood by Diffuse Coplanar Surface Barrier Discharge},
   url = {https://doi.org/10.3390/coatings11010040},
   volume = {11},
   year = {2021}
}

TY  - JOUR
ID  - 1727717
AU  - Košelová, Zuzana - Ráheľ, Jozef - Galmiz, Oleksandr
PY  - 2021
TI  - Plasma Treatment of Thermally Modified and Unmodified Norway Spruce Wood by Diffuse Coplanar Surface Barrier Discharge
JF  - Coatings
VL  - 11
IS  - 1
SP  - 1-16
EP  - 1-16
PB  - MDPI
SN  - 20796412
KW  - Norway spruce
KW  - thermally treated wood
KW  - DCSBD
KW  - plasma treatment
KW  - surface free energy
UR  - https://doi.org/10.3390/coatings11010040
L2  - https://doi.org/10.3390/coatings11010040
N2  - This work deals with the treatment of wood surfaces by diffuse coplanar surface barrier discharge (DCSBD) generated at atmospheric pressure. The effect of the distance of the sample from the electrode surface and the composition of the working gas in the chamber was studied. Norway spruce (Picea abies) wood, both unmodified and thermally modified, was chosen as the investigated material. The change in the surface free energy (SFE) of the wood surface was investigated by contact angles measurements. Chemical and structural changes were studied using infrared spectroscopy, X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). Activation at a 0.15 mm gap from the electrode led in all cases to an increase in the SFE. The largest change in SFE components was recorded for wood thermally modified to 200 °C. At a 1 mm gap from the electrode increase of SFE occurred only when oxygen (O2) and argon (Ar) were used as working gas. Treatment in air and nitrogen (N2) resulted in an anomalous reduction of SFE. With the growing temperature of thermal modification, this hydrophobization effect became less pronounced. The results point out the importance of precise position control during the DCSBD mediated plasma treatment. A slight reduction of SFE on thermally modified spruce was achieved also by short term ultra-violet (UV) light exposure, generated by DCSBD.
ER  -

KOŠELOVÁ, Zuzana; Jozef RÁHEĽ a Oleksandr GALMIZ. Plasma Treatment of Thermally Modified and Unmodified Norway Spruce Wood by Diffuse Coplanar Surface Barrier Discharge. \textit{Coatings}. Basel: MDPI, 2021, roč.~11, č.~1, s.~1-16. ISSN~2079-6412. Dostupné z: https://doi.org/10.3390/coatings11010040.

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