journal article·2017-10Open access

Plywood made from plasma-treated veneers: Shear strength after shrinkage-swelling stress

R. Wascher, G. Avramidis, C. Kühn, H. Militz, W. Viöl

Abstract

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 veneers at equal impregnation duration. Subsequently the veneers were manufactured into 5-layer plywood boards; the plywood samples then underwent an extreme testing procedure based on DIN-EN 314-1/2 in order to proof the bonding quality by means of shear strength. The plywood boards made of plasma pre-treated veneers exhibited up to 2.7-fold improvement in shear strength compared to plywood made of untreated veneers. Results differed markedly based on material (unmodified/thermally modified veneer) and concentration of melamine solution.
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Research context

OpenAlex topics: Building materials and conservation · Cultural Heritage Materials Analysis · Wood Treatment and Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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