Abstract
The swelling kinetics of native and thermally modified wood was studied. Norway spruce, Scots pine, European beech, and English oak specimens of dimensions 20 × 20 × 10 mm were modified at 180, 200, and 220 °C. The swelling kinetics of the specimens was monitored during 24 h of water immersion. The results are presented as relative swelling rate, and values for maximal radial and tangential swelling, and anti-swelling efficiency. A relatively high initial linear-phase swelling rate was found for spruce, pine, and beech wood, while oak wood exhibited more gradual swelling. Thermal modification improved dimensional stability, depending on the wood species, anatomical direction, and intensity of treatment.
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References
Allegretti O, Brunetti M, Cuccui I, Ferrari S, Nocetti M, Terziev N (2012) Thermo-vacuum modification of spruce (Picea abies Karst.) and fir (Abies alba Mill.) wood. BioResources 7(3):3656–3669
Altgen M, Willems W, Hosseinpourpia R, Rautkari L (2018) Hydroxyl accessibility and dimensional changes of Scots pine sapwood affected by alterations in the cell wall ultrastructure during heat-treatment. Polym Degrad Stab 152:244–252. https://doi.org/10.1016/j.polymdegradstab.2018.05.005
Čermák P, Hess D, Suchomelová P (2021) Mass loss kinetics of thermally modified wood species as a time-temperature function. Eur J Wood Prod. https://doi.org/10.1007/s00107-020-01634-6
Höhne P, Tauer K (2016) Studies on swelling of wood with water and ionic liquids. Wood Sci Technol 50:245–258. https://doi.org/10.1007/s00226-015-0779-8
Mantanis GI, Young RA, Rowell RM (1994) Swelling of wood. Part I Swelling in water. Wood Sci Technol 28(3):119–134. https://doi.org/10.1007/BF00192691
Nopens M, Riegler M, Hansmann C, Krause A (2019) Simultaneous change of wood mass and dimension caused by moisture dynamics. Sci Rep 9:10309. https://doi.org/10.1038/s41598-019-46381-8
Acknowledgements
This study was funded by the Czech Science Foundation (GAČR), project no. 19-25171Y “Multi-scale Hygro-thermo-mechanical Behavior of Modified Wood-based Materials”.
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Čermák, P., Suchomelová, P. & Hess, D. Swelling kinetics of thermally modified wood. Eur. J. Wood Prod. 79, 1337–1340 (2021). https://doi.org/10.1007/s00107-021-01690-6
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DOI: https://doi.org/10.1007/s00107-021-01690-6