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Impact of air-plasma treatment at atmospheric pressure on wood and wood extractives

: Avramidis, G.; Wascher, R.; Militz, H.; Viöl, W.


International wood products journal 7 (2016), No.2, pp.76-79
ISSN: 2042-6445
ISSN: 2042-6453
European Conference on Wood Modification (ECWM) <8, 2015, Helsinki>
Journal Article, Conference Paper
Fraunhofer IST ()
wood; wood extractives; plasma; O / C-ratio; XPS

This study addresses the question of whether the extractives or the main components of wood are responsible for the alterations in surface energy after air-plasma treatment. For this purpose, x-ray photoelectron spectroscopy was carried out on untreated, microtomed and air-plasma-modified beech wood surfaces. A dielectric barrier discharge at atmospheric pressure was used for plasma modification. The results indicate that air-plasma treatment affects the O/C-ratio and surface energy characteristics of wood surfaces by oxidative alteration and exposition of the wood main components.