Aspen plywood bonding characteristics with phenolic adhesives

As most plywood in Northern Europe is produced from either birch or different softwoods, or a combination of them, there is an interest to research other wood species for plywood manufacturing. One suitable species might be aspen, for it’s ease of processing, light color and reasonable amount of raw material and having a lower price tag than birch for example. Aspen plywood has not been researched widely and especially it’s bonding characteristics when veneer is peeled from logs soaked at various temperatures. Aspen has got a sufficient growing stock in Estonia and could be used to diversify the plywood product line. Not much research has been carried out to investigate the suitability, quality and specific properties of aspen veneer when considering it as a raw material for plywood. When manufacturing plywood the most important thing to consider is the strength of the adhesive bond in the final product of a plywood panel and factors affecting it during production. The aim of this research is to investigate the bonding characteristics of aspen plywood with phenolic adhesives

Keywords: Aspen, plywood, bonding, veneer

Authors

H. KallakasPoltimäe

A. Rohumaa

S. Treial

N. Savest

T. Poltimäe

J. Kers

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