Plywood made from plasma-treated veneers: melamine uptake, dimensional stability, and mechanical properties
Wascher, Richard ; Kühn, Christian ; Avramidis, Georg ; Bicke, Sascha ; Militz, Holger ; Ohms, Gisela ; Viöl, Wolfgang
Citable Link (URL):http://resolver.sub.uni-goettingen.de/purl?gs-1/14755
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 resin uptake and resulting weight percent gain of the veneers were investigated, whereby the air plasma pre-treated veneers showed improved liquid uptake. Five-layer plywood boards were then manufactured and tested for their dimensional stability, compressive strength, bending strength, and tensile strength. Plywood boards made of thermally modified and plasma pre-treated veneers showed a significantly improved dimensional stability, along with small influences on their mechanical properties.