Structural differences between reaction wood and opposite wood with different drying temperatures
Abstract
Reaction wood is characterized by having different anatomical and chemical features than normal wood. The different composition of cell walls, the higher quantitative proportion of thick-wall fiber cells, diameter, and the abundance of vessels have remarkable effects on reaction wood’s physical and mechanical properties. Reaction wood has fewer vascular cells. In addition, it has a smaller lumen diameter, which results in reduced permeability. Therefore, reaction wood is more difficult to dry at a certain moisture content. The differences in the drying times of the reaction wood and the normal wood were largest at a temperature of 60 °C and durations greater than 30 h, and the reaction wood dried more slowly. At a temperature of 120 °C, the differences in drying time were minimalized, and drying end times were almost identical. The expected negative effect of higher temperature on the morphology of reaction wood and opposition wood was not confirmed.
Reference
Ivan Klement; Tatiana Vilkovská; Peter Vilkovský; Štěpán Hýsek. (2020). Structural differences between reaction wood and opposite wood with different drying temperatures. BioResources. https://doi.org/10.15376/biores.15.2.4407-4416
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