Inhibition of the Photodiscoloration of Wood by Butyrylation
-
Shang-Tzen Chang
Summary
The lightfastness of butyrylated China fir (Cunninghamia lanceolata var. lanceolata) and maple (Acer sp.) was evaluated in this study, and its effectiveness was compared with that of acetylated specimens. The color fading in acetylated China fir and maple woods was reduced to half that of untreated specimens, after a 24-day UV lightfastness test. The effectiveness of butyrylation on photodiscoloration prevention in wood was even more pronounced than that with acetylation. With an 18.57% weight percent gain, butyrylation remarkably inhibited the discoloration of wood following UV irradiation. Based on infrared spectral analysis, the lignin of both untreated and butyrylated woods deteriorated after exposure to UV light, but the holocellulose in butyrylated wood was more resistant to the UV light. Furthermore, results obtained from diffuse reflectance UV-VIS spectral analysis elucidated that the absorption of irradiated butyrylated wood, in comparison with that of the irradiated but untreated specimens, was lower in both UV light and visible light regions. It also revealed that the inhibition of photodiscoloration of wood by butyrylation was caused mainly by a significant reduction of chromophoric derivatives, such as quinoid compounds, formed on the wood surface.
Copyright © 2001 by Walter de Gruyter GmbH & Co. KG
Articles in the same Issue
- Characterisation of Fungal Degraded Birch Wood by FTIR and Py-GC
- The Effects of Specific Volatile Organic Compounds Produced by Trichoderma Spp. on the Growth of Wood Decay Basidiomycetes
- Biological Control of Blue Stain in Pulpwood: Mechanisms of Control used by Phlebiopsis gigantea
- Cell-Wall-Associated Peroxidases from the Lignifying Xylem of Angiosperms and Gymnosperms: Monolignol Oxidation
- Laboratory Evaluation of Natural Decay Resistance and Efficacy of CCA-Treated Rubberwood (Hevea brasiliensis Muell. Arg.)
- Inhibition of the Photodiscoloration of Wood by Butyrylation
- Lipophilic Extractives from Eucalyptus globulus Pulp during Kraft Cooking Followed by TCF and ECF Bleaching
- Determination of Monosaccharide Composition of Eucalyptus globulus Wood by FTIR Spectroscopy
- Acetyl Group Distribution in Acetylated Wood Investigated by Microautoradiography
- Solid State NMR Analysis of β-13C-Enriched Lignocellulosic Material During Light-Induced Yellowing
- N-Hydroxy Compounds as New Internal Standards for the 31P-NMR Determination of Lignin Hydroxy Functional Groups
- 19F NMR Spectroscopy for the Quantitative Analysis of Carbonyl Groups in Lignins
- Reactions of the β-Aryl Ether Lignin Model 1-(4-Hydroxy-3-Methoxyphenyl)-2-(2-Methoxyphenoxy)-1-Propanol on Heating in Aqueous Solution
- Structural Analysis of Residual and Technical Lignins by 1H-13C Correlation 2D NMR-Spectroscopy
- Experimental Determination of Stiffness Variation Across Growth Rings in Picea abies
- Determination of the Material Property Variations Across the Growth Ring of Softwood for Use in a Heterogeneous Drying Model Part 1. Capillary Pressure,Tracheid Model and Absolute Permeability
- Surface Area Determinations in Woodpulps by Humidity Adsorption
- A Simple Testing Method for the Measurement of the Water Vapour Transmission of Coated Wood Longitudinal and Tangential to Grain Direction
- Literature Reports
Articles in the same Issue
- Characterisation of Fungal Degraded Birch Wood by FTIR and Py-GC
- The Effects of Specific Volatile Organic Compounds Produced by Trichoderma Spp. on the Growth of Wood Decay Basidiomycetes
- Biological Control of Blue Stain in Pulpwood: Mechanisms of Control used by Phlebiopsis gigantea
- Cell-Wall-Associated Peroxidases from the Lignifying Xylem of Angiosperms and Gymnosperms: Monolignol Oxidation
- Laboratory Evaluation of Natural Decay Resistance and Efficacy of CCA-Treated Rubberwood (Hevea brasiliensis Muell. Arg.)
- Inhibition of the Photodiscoloration of Wood by Butyrylation
- Lipophilic Extractives from Eucalyptus globulus Pulp during Kraft Cooking Followed by TCF and ECF Bleaching
- Determination of Monosaccharide Composition of Eucalyptus globulus Wood by FTIR Spectroscopy
- Acetyl Group Distribution in Acetylated Wood Investigated by Microautoradiography
- Solid State NMR Analysis of β-13C-Enriched Lignocellulosic Material During Light-Induced Yellowing
- N-Hydroxy Compounds as New Internal Standards for the 31P-NMR Determination of Lignin Hydroxy Functional Groups
- 19F NMR Spectroscopy for the Quantitative Analysis of Carbonyl Groups in Lignins
- Reactions of the β-Aryl Ether Lignin Model 1-(4-Hydroxy-3-Methoxyphenyl)-2-(2-Methoxyphenoxy)-1-Propanol on Heating in Aqueous Solution
- Structural Analysis of Residual and Technical Lignins by 1H-13C Correlation 2D NMR-Spectroscopy
- Experimental Determination of Stiffness Variation Across Growth Rings in Picea abies
- Determination of the Material Property Variations Across the Growth Ring of Softwood for Use in a Heterogeneous Drying Model Part 1. Capillary Pressure,Tracheid Model and Absolute Permeability
- Surface Area Determinations in Woodpulps by Humidity Adsorption
- A Simple Testing Method for the Measurement of the Water Vapour Transmission of Coated Wood Longitudinal and Tangential to Grain Direction
- Literature Reports
