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Pinus Pinaster surface treatment realized in spatial and temporal afterglow DBD conditions

Published online by Cambridge University Press:  19 March 2008

E. Lecoq ,
F. Clément ,
E. Panousis ,
J.-F. Loiseau ,
B. Held ,
A. Castetbon  and
C. Guimon
E. Lecoq
Affiliation:
Laboratoire d'Electronique des Gaz et des Plasmas, Université de Pau et des Pays de l'Adour, 64000 Pau, France
F. Clément
Affiliation:
Laboratoire d'Electronique des Gaz et des Plasmas, Université de Pau et des Pays de l'Adour, 64000 Pau, France
E. Panousis
Affiliation:
Laboratoire d'Electronique des Gaz et des Plasmas, Université de Pau et des Pays de l'Adour, 64000 Pau, France
J.-F. Loiseau
Affiliation:
Laboratoire d'Electronique des Gaz et des Plasmas, Université de Pau et des Pays de l'Adour, 64000 Pau, France
B. Held
Affiliation:
Laboratoire d'Electronique des Gaz et des Plasmas, Université de Pau et des Pays de l'Adour, 64000 Pau, France
A. Castetbon
Affiliation:
Institut Pluridisciplinaire de Recherche sur l'Environnement et les Matériaux, IPREM, Equipe Chimie Analytique Bio Inorganique et Environnement (ECABIE), UMR (CNRS) 5254, Université de Pau et des Pays de l'Adour, 64000 Pau, France
C. Guimon*
Affiliation:
Institut Pluridisciplinaire de Recherche sur l'Environnement et les Matériaux, IPREM, Équipe Chimie Physique (ECP), UMR (CNRS) 5254, Université de Pau et des Pays de l'Adour, 64000 Pau, France
*
jean-francis.loiseau@univ-pau.fr
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Abstract

This experimental work deals with the exposition of Pinus Pinaster wood samples to a DBD afterglow. Electrical parameters like duty cycle and injected energy in the gas are being varied and the modifications induced by the afterglow on the wood are analysed by several macroscopic and microscopic ways like wettability, XPS analyses and also soaking tests of treated wood in a commercial fungicide solution. Soaking tests show that plasma treatment could enhance the absorption of fungicide into the wood. The wettability results point out that the plasma treatment can inflict on the wood different surface properties, making it hydrophilic or hydrophobic, when varying electrical parameters. XPS analyses reveal several chemical modifications like an increase of the O/C ratio and the presence of carboxyl groups on the surface after plasma treatments.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 42 , Issue 1: 16th International Colloquium on Plasma Processes (CIP 2007) , April 2008 , pp. 47 - 53
Copyright
© EDP Sciences, 2008

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