Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Richard Wascher"'
Publikováno v:
Forests, Vol 12, Iss 1423, p 1423 (2021)
Forests
Volume 12
Issue 10
Forests
Volume 12
Issue 10
In this study, the dimensional stability and mechanical properties of plywood made from untreated and plasma-pretreated beech veneers were compared. The wood veneers used (native and thermally modified) were impregnated with melamine resin in a simpl
Publikováno v:
International Journal of Adhesion and Adhesives. 78:212-215
Thermally modified and unmodified beech veneers in untreated and plasma-treated state were immersed in melamine solution at different concentrations. The plasma pre-treated veneers exhibited significantly higher melamine loads than the untreated vene
Autor:
Wolfgang Viöl, Richard Wascher, Sascha Bicke, Christian Kühn, Georg Avramidis, Holger Militz, Gisela Ohms
Publikováno v:
Journal of Wood Science. 63:338-349
This study investigates the dimensional stability and mechanical properties of plywood boards made of thermally modified and unmodified beech veneers that have undergone plasma pre-treatment before melamine resin impregnation. The water and melamine
Publikováno v:
International Wood Products Journal. 7:76-79
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 untrea
Autor:
Richard Wascher, Georg Avramidis, Arndt Wolkenhauer, Holger Militz, Nils Leike, Wolfgang Viöl
Publikováno v:
European Journal of Wood and Wood Products. 73:433-437
This study investigated the effect of a plasma treatment at atmospheric pressure on the absorption characteristics of beech veneers by using a dielectric barrier discharge on the DMDHEU (1,3-dimethylol-4,5-dihydroxyethylene urea). Immersion tests wit
Publikováno v:
European Journal of Wood and Wood Products. 73:219-223
The surface properties of wood particles are one of the key factors for the development of mechanical and physical properties of particleboards. Particles were treated with plasma at atmospheric pressure with ambient air in order to enhance the polar
Autor:
Richard Wascher, Ulrich Vetter, Roland Damm, Wolfgang Viöl, Georg Avramidis, F. Peters, Holger Militz
Publikováno v:
Surface and Coatings Technology. 259:62-67
Beech wood veneers were plasma treated by a dielectric barrier discharge at atmospheric pressure using compressed air as process gas. Treatment duration was kept constant, whereas the injected discharge power was varied. Subsequently the veneers were
It is assumed that improved mechanical properties of plasma treated particleboards are caused by enhanced spreading of urea-formaldehyde adhesive on wood particles. Spreading of adhesive drops was therefore microscopically evaluated based on dimensio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1ca7954ab3ee39f6dd526aca520634f
https://publica.fraunhofer.de/handle/publica/243543
https://publica.fraunhofer.de/handle/publica/243543
Publikováno v:
European Journal of Wood and Wood Products. 72:685-687
In order to provide a database which documents the influence of plasma treatment on water uptake of wood veneers, veneers of 27 wood species underwent immersion tests in untreated and plasma-treated states. Plasma treatment was executed using an air
Autor:
Richard Wascher, Martin Bellmann, Brit Stüwe, Stephan Wieneke, Andreas von Tiedemann, Wolfgang Viöl, Georg Avramidis
Publikováno v:
Surface and Coatings Technology. 205:S405-S408
Studies about interaction of plasmas with microorganisms usually focus on bacteria, bacteria spores or fungal spores; little attention has been paid to plasma treatment of fungal species in their vegetative state. The aim of this work is to evaluate