Bonding performance of hot-bonded acetylated beech (Fagus sylvatica L.) laminated veneer lumber (LVL). Slabohm, M. & Militz, H. Wood Material Science & Engineering, 0(0):1–6, September, 2022. Publisher: Taylor & Francis _eprint: https://doi.org/10.1080/17480272.2022.2124544
Paper doi abstract bibtex This study demonstrates acetylation with acetic anhydride, one of the few industrial wood modification techniques on the market, to increase the dimensional stability and durability of laminated veneer lumber (LVL) made from beech wood (Fagus sylvatica L.). After being acetylated, veneers were hot-bonded to LVL using phenol-formaldehyde resin (PF) or phenol-resorcinol-formaldehyde resin (PRF). The bonding performance (bonding shear strength (BSS) and wood failure (WF)) was tested under the following three conditions: 20°C and 65% RH, water immersion, and rigorous boiling-drying-boiling. Additionally, using the same specimen sizes on a second sample set, the moisture content (MC) and dimensional stability were determined. Results indicate that the PRF resin provided the strongest bonding performance on acetylated LVL and references. Additionally, acetylated LVL outperformed unmodified references in moist settings, particularly the BSS after boiling in water.
@article{slabohm_bonding_2022,
title = {Bonding performance of hot-bonded acetylated beech ({Fagus} sylvatica {L}.) laminated veneer lumber ({LVL})},
volume = {0},
issn = {1748-0272},
url = {https://doi.org/10.1080/17480272.2022.2124544},
doi = {10.1080/17480272.2022.2124544},
abstract = {This study demonstrates acetylation with acetic anhydride, one of the few industrial wood modification techniques on the market, to increase the dimensional stability and durability of laminated veneer lumber (LVL) made from beech wood (Fagus sylvatica L.). After being acetylated, veneers were hot-bonded to LVL using phenol-formaldehyde resin (PF) or phenol-resorcinol-formaldehyde resin (PRF). The bonding performance (bonding shear strength (BSS) and wood failure (WF)) was tested under the following three conditions: 20°C and 65\% RH, water immersion, and rigorous boiling-drying-boiling. Additionally, using the same specimen sizes on a second sample set, the moisture content (MC) and dimensional stability were determined. Results indicate that the PRF resin provided the strongest bonding performance on acetylated LVL and references. Additionally, acetylated LVL outperformed unmodified references in moist settings, particularly the BSS after boiling in water.},
number = {0},
urldate = {2022-09-22},
journal = {Wood Material Science \& Engineering},
author = {Slabohm, Maik and Militz, Holger},
month = sep,
year = {2022},
note = {Publisher: Taylor \& Francis
\_eprint: https://doi.org/10.1080/17480272.2022.2124544},
keywords = {plywood, acetic anhydride, Acetylation, beech wood, bonding, chemical modification, laminated veneer lumber (LVL)},
pages = {1--6},
}
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