The Influence of Drying Temperature on Color Change of Hornbeam and Maple Wood Used as Surface and Inner Layers of Wood Composites

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...

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Autores principales:	Ivan Klement, Peter Vilkovský, Tatiana Vilkovská, Kazimierz A. Orłowski, Jacek Barański, Daniel Chuchala, Aleksandra Suchta
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	drying temperature hornbeam maple wood color difference composites Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/12d9a9ba0b484f74be7bee105df95136
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spelling	oai:doaj.org-article:12d9a9ba0b484f74be7bee105df951362021-11-25T16:34:59ZThe Influence of Drying Temperature on Color Change of Hornbeam and Maple Wood Used as Surface and Inner Layers of Wood Composites10.3390/app1122106732076-3417https://doaj.org/article/12d9a9ba0b484f74be7bee105df951362021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10673https://doaj.org/toc/2076-3417The 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 Δ<i>E</i>* 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.Ivan KlementPeter VilkovskýTatiana VilkovskáKazimierz A. OrłowskiJacek BarańskiDaniel ChuchalaAleksandra SuchtaMDPI AGarticledrying temperaturehornbeammaple woodcolor differencecompositesTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10673, p 10673 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	drying temperature hornbeam maple wood color difference composites Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	drying temperature hornbeam maple wood color difference composites Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Ivan Klement Peter Vilkovský Tatiana Vilkovská Kazimierz A. Orłowski Jacek Barański Daniel Chuchala Aleksandra Suchta The Influence of Drying Temperature on Color Change of Hornbeam and Maple Wood Used as Surface and Inner Layers of Wood Composites
description	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 Δ<i>E</i>* 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.
format	article
author	Ivan Klement Peter Vilkovský Tatiana Vilkovská Kazimierz A. Orłowski Jacek Barański Daniel Chuchala Aleksandra Suchta
author_facet	Ivan Klement Peter Vilkovský Tatiana Vilkovská Kazimierz A. Orłowski Jacek Barański Daniel Chuchala Aleksandra Suchta
author_sort	Ivan Klement
title	The Influence of Drying Temperature on Color Change of Hornbeam and Maple Wood Used as Surface and Inner Layers of Wood Composites
title_short	The Influence of Drying Temperature on Color Change of Hornbeam and Maple Wood Used as Surface and Inner Layers of Wood Composites
title_full	The Influence of Drying Temperature on Color Change of Hornbeam and Maple Wood Used as Surface and Inner Layers of Wood Composites
title_fullStr	The Influence of Drying Temperature on Color Change of Hornbeam and Maple Wood Used as Surface and Inner Layers of Wood Composites
title_full_unstemmed	The Influence of Drying Temperature on Color Change of Hornbeam and Maple Wood Used as Surface and Inner Layers of Wood Composites
title_sort	influence of drying temperature on color change of hornbeam and maple wood used as surface and inner layers of wood composites
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/12d9a9ba0b484f74be7bee105df95136
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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

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