Chemical characterization and FTIR spectroscopy of thermally compressed eucalyptus wood panels
In this study, the change in the chemical properties of the thermally modified eucalyptus (Eucalyptus camaldulensis) wood boards were examined by wet chemical analysis and FTIR spectroscopy. The eucalyptus wood boards were modified with a laboratory type hot-press for four different groups at press...
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Universidad del Bío-Bío
2018-07-01
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doaj-f68b77e3870a4fbcb4eef7d0dc55f72f2020-11-25T03:34:58ZengUniversidad del Bío-Bío Maderas: Ciencia y Tecnología0717-36440718-221X2018-07-012034314423150Chemical characterization and FTIR spectroscopy of thermally compressed eucalyptus wood panelsOktay GonultasZeki CandanIn this study, the change in the chemical properties of the thermally modified eucalyptus (Eucalyptus camaldulensis) wood boards were examined by wet chemical analysis and FTIR spectroscopy. The eucalyptus wood boards were modified with a laboratory type hot-press for four different groups at press pressures of 2 or 4 MPa and temperatures of 150°C or 180°C and compared to untreated control. After this, hot water, 1% NaOH, ethanol-cyclohexane, ethanol, and methanol-water solubility values were determined for the treated samples. In addition, the content of klason lignin, acid soluble lignin, holocellulose, and α-cellulose were investigated. The solubility values (except for the ethanol solubility) increased in the modified wood when compared to the untreated control. A decrease in the content of acid soluble lignin, holocellulose and α-cellulose was observed while the content of klason lignin in the modified wood was increased. According to the FTIR analysis results, significant changes were observed in the spectra of the modified samples. These findings were in agreement with the results of wet chemical analysis.http://revistas.ubiobio.cl/index.php/MCT/article/view/3150cell wall componentschemical compositioneucalyptus camaldulensisthermal modificationwood compositeswood solubility |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Oktay Gonultas Zeki Candan |
spellingShingle |
Oktay Gonultas Zeki Candan Chemical characterization and FTIR spectroscopy of thermally compressed eucalyptus wood panels Maderas: Ciencia y Tecnología cell wall components chemical composition eucalyptus camaldulensis thermal modification wood composites wood solubility |
author_facet |
Oktay Gonultas Zeki Candan |
author_sort |
Oktay Gonultas |
title |
Chemical characterization and FTIR spectroscopy of thermally compressed eucalyptus wood panels |
title_short |
Chemical characterization and FTIR spectroscopy of thermally compressed eucalyptus wood panels |
title_full |
Chemical characterization and FTIR spectroscopy of thermally compressed eucalyptus wood panels |
title_fullStr |
Chemical characterization and FTIR spectroscopy of thermally compressed eucalyptus wood panels |
title_full_unstemmed |
Chemical characterization and FTIR spectroscopy of thermally compressed eucalyptus wood panels |
title_sort |
chemical characterization and ftir spectroscopy of thermally compressed eucalyptus wood panels |
publisher |
Universidad del Bío-Bío |
series |
Maderas: Ciencia y Tecnología |
issn |
0717-3644 0718-221X |
publishDate |
2018-07-01 |
description |
In this study, the change in the chemical properties of the thermally modified eucalyptus (Eucalyptus camaldulensis) wood boards were examined by wet chemical analysis and FTIR spectroscopy. The eucalyptus wood boards were modified with a laboratory type hot-press for four different groups at press pressures of 2 or 4 MPa and temperatures of 150°C or 180°C and compared to untreated control. After this, hot water, 1% NaOH, ethanol-cyclohexane, ethanol, and methanol-water solubility values were determined for the treated samples. In addition, the content of klason lignin, acid soluble lignin, holocellulose, and α-cellulose were investigated. The solubility values (except for the ethanol solubility) increased in the modified wood when compared to the untreated control. A decrease in the content of acid soluble lignin, holocellulose and α-cellulose was observed while the content of klason lignin in the modified wood was increased. According to the FTIR analysis results, significant changes were observed in the spectra of the modified samples. These findings were in agreement with the results of wet chemical analysis. |
topic |
cell wall components chemical composition eucalyptus camaldulensis thermal modification wood composites wood solubility |
url |
http://revistas.ubiobio.cl/index.php/MCT/article/view/3150 |
work_keys_str_mv |
AT oktaygonultas chemicalcharacterizationandftirspectroscopyofthermallycompressedeucalyptuswoodpanels AT zekicandan chemicalcharacterizationandftirspectroscopyofthermallycompressedeucalyptuswoodpanels |
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