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Heat treatment of poplar plywood: modifications in physical, mechanical and durability properties

Article dans une revue avec comité de lecture
Author
MARCON, Bertrand
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
ccVIGUIER, Joffrey
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
CANDELIER, Kevin
418702 BioWooEB [UPR BioWooEB]
11574 Centre de Coopération Internationale en Recherche Agronomique pour le Développement [Cirad]
THEVENON, MF
1100589 Université de Montpellier [UM]
418702 BioWooEB [UPR BioWooEB]
BUTAUD, Jean-Claude
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
PIGNOLET, L
418702 BioWooEB [UPR BioWooEB]
GARTILI, A
418702 BioWooEB [UPR BioWooEB]
DENAUD, Louis
110103 Institut Clément Ader [ICA]
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
ccCOLLET, Robert
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]

URI
http://hdl.handle.net/10985/23308
DOI
10.3832/ifor4159-015
Date
2023-01-09
Journal
iForest - Biogeosciences and Forestry

Abstract

Plywood made of poplar are limited to indoor usages since poplar exhibits a rather low natural durability. Recently, wood heat treatments have been applied to improve properties such as decay susceptibility and dimensional stability. This study examines the potential of exposing poplar plywood to heat treatment to extend the potential of applications of this engineered wood product to outdoor end uses, and new markets accordingly. Plywood panels were glued with two different adhesive formulations based on the same melamine-urea-formaldehyde (MUF) resin to compare their respective ability to resist to the heat treatment. These different plywoods were thermally modified in saturated steam conditions at 215 °C for 2 hours following the ThermoWood® process, up to reach 14% in mass loss. The durability improvement brought by the heat treatment was assessed in order to evaluate any possible outdoor uses for such plywood. After all the conducted analyses, the potential to use heat treated poplar plywoods in humid interior and protected exterior service conditions was confirmed.

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