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The Influence of Drying Temperature on Color Change of Hornbeam and Maple Wood Used as Surface and Inner Layers of Wood Composites
Abstract
The thermal treatment of wood changes its structure due to the degradation of wood polymers (cellulose, hemicellulose and lignin), so the physical properties of wood are either improved or degraded. Color changes apply not only to natural wood, but also to such wood composites for which some amount of glue is used in their construction (e.g., plywood, blockboard or laminboard). This article is focused on the analysis of hornbeam and field maple wood color changes influenced by drying temperature. Two types of drying modes were used: hot-air mode where the temperature of the drying environment was 60 C, and high-temperature mode with a drying temperature of 120 C. The drying mode was divided into two phases depending on the moisture content of the wood. The compared woods had similar values of color coordinates at the beginning of drying. During hot-air drying, the largest changes in color coordinates occurred during the first 24 h. The total color difference between the color at the end and the beginning of drying was 7.3 for hornbeam and 11.1 for maple. The overall color difference between the compared woods was minimal. During high-temperature drying (120 C), the color changes of the dried woods were more pronounced. In the case of maple wood, there was a very significant change in color and the value of DE* was twice as high as for hornbeam. The total color difference between the color at the end and at the beginning of drying was 8.7 for hornbeam and 18.9 for maple.
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Authors (7)
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Ivan Klement doc. Ing.
- Technická univerzita Zvolen
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Peter Vilkovský dr inż.
- Technická univerzita Zvolen
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Tatiana Vilkovská dr inż.
- Technická univerzita Zvolen
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/app112210673
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Applied Sciences-Basel
no. 11,
ISSN: 2076-3417 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Klement I., Vilkovský P., Vilkovská T., Orłowski K., Barański J., Chuchała D., Suchta A.: The Influence of Drying Temperature on Color Change of Hornbeam and Maple Wood Used as Surface and Inner Layers of Wood Composites// Applied Sciences-Basel -Vol. 11,iss. 22 (2021), s.10673-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/app112210673
- Verified by:
- Gdańsk University of Technology
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