Effect of DCSBD plasma treatment on surface properties of thermally modified wood

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00109793" target="_blank" >RIV/00216224:14310/19:00109793 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2468023018305418?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2468023018305418?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfin.2019.04.005" target="_blank" >10.1016/j.surfin.2019.04.005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of DCSBD plasma treatment on surface properties of thermally modified wood

Popis výsledku v původním jazyce

The focus of this study was to characterize the surface changes of several species of thermally modified wood after plasma treatment with diffuse coplanar surface barrier discharge (DCSBD). Surfaces were characterized before and after the DCSBD plasma exposure with different treatment time by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), confocal microscopy and contact angle measurements to determine the surface free energy. Surface free energy of 63–64 mJ/m2 was measured for all thermally modified wood species already after 5 and 10 s of plasma treatment. The increased surface free energy could be attributed to the increase of the polar component of surface free energy. XPS measurements revealed that the oxygen to carbon atoms (O/C) ratio increased from 0.2 to 0.3 before plasma treatment up to 0.7–0.8 after plasma treatment. A linear correlation could be suggested between the surface free energy and O/C ratio of thermally modified wood before and after plasma treatment. SEM imaging revealed that on the micrometer scale the surface morphology did not change after the plasma treatment. However, nanoscale structuring was observed at higher magnification after longer plasma treatment of 60 s.

Název v anglickém jazyce

Effect of DCSBD plasma treatment on surface properties of thermally modified wood

Popis výsledku anglicky

The focus of this study was to characterize the surface changes of several species of thermally modified wood after plasma treatment with diffuse coplanar surface barrier discharge (DCSBD). Surfaces were characterized before and after the DCSBD plasma exposure with different treatment time by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), confocal microscopy and contact angle measurements to determine the surface free energy. Surface free energy of 63–64 mJ/m2 was measured for all thermally modified wood species already after 5 and 10 s of plasma treatment. The increased surface free energy could be attributed to the increase of the polar component of surface free energy. XPS measurements revealed that the oxygen to carbon atoms (O/C) ratio increased from 0.2 to 0.3 before plasma treatment up to 0.7–0.8 after plasma treatment. A linear correlation could be suggested between the surface free energy and O/C ratio of thermally modified wood before and after plasma treatment. SEM imaging revealed that on the micrometer scale the surface morphology did not change after the plasma treatment. However, nanoscale structuring was observed at higher magnification after longer plasma treatment of 60 s.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Surface and Interfaces

ISSN

2468-0230

e-ISSN

—

Svazek periodika

16

Číslo periodika v rámci svazku

SEP 2019

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

8-14

Kód UT WoS článku

000474567500002

EID výsledku v databázi Scopus

2-s2.0-85063964484