Recent research activities focus to manufacture laminated veneer lumber (LVL) from of acetylated beech (Fagus sylvatica L.) veneers. The LVL production requires a hot-bonding (150°C) step. However, it is not known yet whether hot-bonding may cleave esterified acetyl groups and by that affect the material performance (de-acetylation). Acetic acid, as residuals from the acetylation process may in combination with acetic anhydride act as a catalyser for de-acetylation in presence of water and high temperature.
Keywords: De-acetylation, acetylation with acetic anhydride, laminated veneer lumber
Authors
Maik Slabohm
University of Goettingen, Wood Biology and Wood Products, Buesgenweg 4, 37077, Goettingen, Germany
Lukas Emmerich
University of Goettingen, Wood Biology and Wood Products, Buesgenweg 4, 37077, Goettingen, Germany
Holger Militz
University of Goettingen, Wood Biology and Wood Products, Buesgenweg 4, 37077, Goettingen, Germany
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