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Moisture Dynamics of Wood-Based Panels and Wood Fibre Insulation Materials

Moisture performance is an important factor determining the resistance of wood-based building materials against fungal decay. Understanding how material porosity and chemistry affect moisture performance is necessary for their efficient use, as well as for product optimisation. In this study, three...

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Autores principales: De Ligne, Liselotte, Van Acker, Joris, Baetens, Jan M., Omar, Salah, De Baets, Bernard, Thygesen, Lisbeth G., Van den Bulcke, Jan, Thybring, Emil E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9330446/
https://www.ncbi.nlm.nih.gov/pubmed/35909717
http://dx.doi.org/10.3389/fpls.2022.951175
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author De Ligne, Liselotte
Van Acker, Joris
Baetens, Jan M.
Omar, Salah
De Baets, Bernard
Thygesen, Lisbeth G.
Van den Bulcke, Jan
Thybring, Emil E.
author_facet De Ligne, Liselotte
Van Acker, Joris
Baetens, Jan M.
Omar, Salah
De Baets, Bernard
Thygesen, Lisbeth G.
Van den Bulcke, Jan
Thybring, Emil E.
author_sort De Ligne, Liselotte
collection PubMed
description Moisture performance is an important factor determining the resistance of wood-based building materials against fungal decay. Understanding how material porosity and chemistry affect moisture performance is necessary for their efficient use, as well as for product optimisation. In this study, three complementary techniques (X-ray computed tomography, infrared and low-field NMR spectroscopy) are applied to elucidate the influence of additives, manufacturing process and material structure on the liquid water absorption and desorption behaviour of a selection of wood-based panels, thermally modified wood and wood fibre insulation materials. Hydrophobic properties achieved by thermal treatment or hydrophobic additives such as paraffin and bitumen, had a major influence on water absorption and desorption rates. When hydrophobic additives did not play a role, pore distributions and manufacturing process had a decisive influence on the amount and rate of absorption and desorption. In that case, a higher porosity resulted in a higher water absorption rate. Our results show that there is a clear potential for tailoring materials towards specific moisture performance by better understanding the influence of different material characteristics. This is useful both for achieving desired moisture buffering as well as to increase service life of wood-based materials. From a sustainability perspective, fit-for-purpose moisture performance is often easier to achieve and preferred than wood protection by biocide preservative treatments.
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spelling pubmed-93304462022-07-29 Moisture Dynamics of Wood-Based Panels and Wood Fibre Insulation Materials De Ligne, Liselotte Van Acker, Joris Baetens, Jan M. Omar, Salah De Baets, Bernard Thygesen, Lisbeth G. Van den Bulcke, Jan Thybring, Emil E. Front Plant Sci Plant Science Moisture performance is an important factor determining the resistance of wood-based building materials against fungal decay. Understanding how material porosity and chemistry affect moisture performance is necessary for their efficient use, as well as for product optimisation. In this study, three complementary techniques (X-ray computed tomography, infrared and low-field NMR spectroscopy) are applied to elucidate the influence of additives, manufacturing process and material structure on the liquid water absorption and desorption behaviour of a selection of wood-based panels, thermally modified wood and wood fibre insulation materials. Hydrophobic properties achieved by thermal treatment or hydrophobic additives such as paraffin and bitumen, had a major influence on water absorption and desorption rates. When hydrophobic additives did not play a role, pore distributions and manufacturing process had a decisive influence on the amount and rate of absorption and desorption. In that case, a higher porosity resulted in a higher water absorption rate. Our results show that there is a clear potential for tailoring materials towards specific moisture performance by better understanding the influence of different material characteristics. This is useful both for achieving desired moisture buffering as well as to increase service life of wood-based materials. From a sustainability perspective, fit-for-purpose moisture performance is often easier to achieve and preferred than wood protection by biocide preservative treatments. Frontiers Media S.A. 2022-07-14 /pmc/articles/PMC9330446/ /pubmed/35909717 http://dx.doi.org/10.3389/fpls.2022.951175 Text en Copyright © 2022 De Ligne, Van Acker, Baetens, Omar, De Baets, Thygesen, Van den Bulcke and Thybring. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
De Ligne, Liselotte
Van Acker, Joris
Baetens, Jan M.
Omar, Salah
De Baets, Bernard
Thygesen, Lisbeth G.
Van den Bulcke, Jan
Thybring, Emil E.
Moisture Dynamics of Wood-Based Panels and Wood Fibre Insulation Materials
title Moisture Dynamics of Wood-Based Panels and Wood Fibre Insulation Materials
title_full Moisture Dynamics of Wood-Based Panels and Wood Fibre Insulation Materials
title_fullStr Moisture Dynamics of Wood-Based Panels and Wood Fibre Insulation Materials
title_full_unstemmed Moisture Dynamics of Wood-Based Panels and Wood Fibre Insulation Materials
title_short Moisture Dynamics of Wood-Based Panels and Wood Fibre Insulation Materials
title_sort moisture dynamics of wood-based panels and wood fibre insulation materials
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9330446/
https://www.ncbi.nlm.nih.gov/pubmed/35909717
http://dx.doi.org/10.3389/fpls.2022.951175
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