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Title
FT-IR study of maple wood changes due to CO laser irradiation
Authors
Ivan Kubovsky and Frantisek Kacik
Received
March 16, 2009
Published
Volume 43 Issue 7-8 July-August
Keywords
maple, lignin, cellulose, hemicelluloses, laser, irradiation dose, FT-IR spectroscopy
Abstract
The paper reports on the wood component changes caused by laser beam irradiation. A 500 x 150 x 15 mm maple (Acer pseudoplatanus L.) board was irradiated by a CO laser beam, at different values of exposure 2 energy (expressed as irradiation dose). Changes in the absorption intensities due to degradation and condensation reactions of the main wood components were observed by infrared spectroscopy (FT-IR). When increasing the irradiation dose (from 18 to 57 Jcm-1), the degradation of hemicelluloses was predominantly observed, while lignin was degraded at a lower irradiation dose and, at a higher energy dosage, lignin condensation occurred.
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