Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3103
Title: Near infrared spectroscopic investigation of the thermal degradation of wood
Authors: Mehrotra R.
Singh P.
Kandpal H.
Published in: Thermochimica Acta
Abstract: In the present paper changes in the near infrared (NIR) spectra and color parameters of wood (Dalbergia sissoo) after thermal treatment are reported. The color change of the wood upon heating was analyzed by the CIELAB color parameters. The degradation of wood upon heating was determined by differential scanning calorimetery (DSC). Wood degradation involved from 50 °C to 80 °C changes in the amorphous region in cellulose took place, from 100 °C to 130 °C changes were observed in physically bonded water and from 150 °C to 160 °C degradation of hemicelluloses took place. The phase transition of cellulose took place at about 175 °C and changes in the crystalline region in cellulose were observed at 210 °C. The significant changes are observed in the lignin at elevated temperatures. The change in the color of the wood on increasing temperature is related to the degradation of hemicelluloses. NIR spectroscopy was found to be a powerful tool to determine the physicochemical structural changes in wood on heat treatment. © 2010 Elsevier B.V.
Citation: Thermochimica Acta (2010), 507-508(): 60-65
URI: https://doi.org/10.1016/j.tca.2010.05.001
http://repository.iitr.ac.in/handle/123456789/3103
Issue Date: 2010
Keywords: Cellulose
Color change
DSC
Hemicelluloses
Lignin
Near infrared spectroscopy
Thermal degradation of wood
ISSN: 406031
Author Scopus IDs: 16031906700
23494041600
7003383488
Author Affiliations: Mehrotra, R., Optical Radiation Standards, National Physical Laboratory, Council of Scientific and Industrial Research, K.S. Krishnan Road, New Delhi 110012, India
Singh, P., Optical Radiation Standards, National Physical Laboratory, Council of Scientific and Industrial Research, K.S. Krishnan Road, New Delhi 110012, India
Kandpal, H., Optical Radiation Standards, National Physical Laboratory, Council of Scientific and Industrial Research, K.S. Krishnan Road, New Delhi 110012, India
Corresponding Author: Mehrotra, R.; Optical Radiation Standards, National Physical Laboratory, Council of Scientific and Industrial Research, K.S. Krishnan Road, New Delhi 110012, India; email: ranjana@mail.nplindia.ernet.in
Appears in Collections:Journal Publications [CY]

Files in This Item:
There are no files associated with this item.
Show full item record


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.