Abstract
Mahogany wood (Swietenia macrophylla King) was thermally modified by heating at various temperatures. The wood-water-related parameters of the heat-treated wood, including fiber saturation point, equilibrium moisture content, moisture excluding efficiency, hygroscopic hysteresis, swelling, anti-swelling efficiency, water adsorption, and surface wettability were determined to clarify the mechanism of heat treatment to reduce wood hygroscopicity. The wood treated at a higher temperature demonstrated a more significant decrease in hygroscopicity. The reduction in hygroscopicity of the heat-treated wood was partially diminished as the moisture excluding efficiency decreased in the absorption and desorption processes caused by the changes in environmental temperature and relative humidity. The fiber saturation point (determined by nuclear magnetic resonance spectroscopy), surface free energy, and the surface wettability of wood were reduced by heat treatment, resulting in the decreased hygroscopicity of the heat-treated wood. Mahogany wood became more insensitive to the influence of moisture due to the heat treatment, and this effect was more distinct for wood treated at a high temperature.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This work was financially supported through the Fundamental Research Funds of Chinese Academy of Forestry (CAFYBB2017ZC003).
Employment or leadership: None declared.
Honorarium: None declared.
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Articles in the same Issue
- Frontmatter
- Review
- Timber moisture content adjustment factors for nondestructive testing (NDT): acoustic, vibration and probing techniques
- Original articles
- The morphological characteristics and classification of vascular parenchyma cells in bamboo, Phyllostachys edulis (Carr.) J. Houz
- A study of pine resin in softwood by 1D and 2D time-domain NMR
- Changes in the wood-water interactions of mahogany wood due to heat treatment
- Reaction kinetics investigation in relation to the influence of humidity on fatigue behavior of wood lap joints
- Effect of antisolvents on the structure of regenerated cellulose: development of an efficient regeneration process
- The effects of pH on copper leaching from wood treated with copper amine-based preservatives
- Short note
- Micromechanical properties of beech cell wall measured by micropillar compression test and nanoindentation mapping
Articles in the same Issue
- Frontmatter
- Review
- Timber moisture content adjustment factors for nondestructive testing (NDT): acoustic, vibration and probing techniques
- Original articles
- The morphological characteristics and classification of vascular parenchyma cells in bamboo, Phyllostachys edulis (Carr.) J. Houz
- A study of pine resin in softwood by 1D and 2D time-domain NMR
- Changes in the wood-water interactions of mahogany wood due to heat treatment
- Reaction kinetics investigation in relation to the influence of humidity on fatigue behavior of wood lap joints
- Effect of antisolvents on the structure of regenerated cellulose: development of an efficient regeneration process
- The effects of pH on copper leaching from wood treated with copper amine-based preservatives
- Short note
- Micromechanical properties of beech cell wall measured by micropillar compression test and nanoindentation mapping