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European Journal of Wood and Wood Products

Erschienen in:

22.03.2017 | Original

Hydrophobic recovery of atmospheric pressure plasma treated surfaces of Wood-Polymer Composites (WPC)

verfasst von: Benedikt Hünnekens, Andreas Krause, Holger Militz, Wolfgang Viöl

Erschienen in: European Journal of Wood and Wood Products | Ausgabe 5/2017

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Abstract

In this study, the behavior of atmospheric pressure plasma treated surfaces of Wood-Polymer Composites (WPC) was investigated as a function of time and environmental conditions. The surfaces of injection molded WPC based on polypropylene (PP) and polyethylene (PE) were treated by a dielectric barrier discharge (DBD) and subsequently aged under various conditions. The wettability as an indicator for change of the composite surface was assessed using water contact angle. In addition, a calculation for half-time of the contact angles was developed to predict the time span which is needed for recovery of hydrophobicity. The results showed a major influence of temperature and time, whereas the humidity only at storing conditions of 60 °C and 75% relative humidity showed a distinct effect on the activated surface. The effect of DBD treatment was stable for more than one week in the climates 20 °C and 0% RH and 20 °C and 65% RH.

Vorheriger Artikel Effects of cutterhead diameter and log infeed position on size distribution of pulp chips produced by a chipper-canter

Nächster Artikel Bonding of densified beech wood using adhesives based on thermally modified soy proteins

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Titel: Hydrophobic recovery of atmospheric pressure plasma treated surfaces of Wood-Polymer Composites (WPC)
verfasst von: Benedikt Hünnekens
Andreas Krause
Holger Militz
Wolfgang Viöl
Publikationsdatum: 22.03.2017
Verlag: Springer Berlin Heidelberg
Erschienen in: European Journal of Wood and Wood Products / Ausgabe 5/2017
Print ISSN: 0018-3768
Elektronische ISSN: 1436-736X
DOI: https://doi.org/10.1007/s00107-017-1175-x

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