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Title
Investigation of structural and thermal properties of different wood species treated with toluene-2 4-diisocyanate
Authors
RUXANDA BODIRLAU CARMEN-ALICE TEACA ANA-MARIA RESMERITA and IULIANA SPIRIDON
Received
October 22, 2011
Published
Volume 46 Issue 5-6 June-July
Keywords
softwood, hardwood, toluene-2,4-diisocyanate (TDI), FTIR analysis, TG-DTG-DSC analysis
Abstract
A chemical reaction between some reactive compound of different wood species and a chemical reagent, without
catalyst, to form a covalent bond between them was performed in the present study. Wood samples of a softwood
species, namely spruce (Picea abies), and a hardwood one, eucalyptus (Eucalyptus globulus), were treated with
toluene-2,4-diisocyanate (TDI) at 60 C, for 1.5 h. Structural changes in wood structure were evidenced by means of
Fourier Transform infrared spectroscopy (FTIR). Spectra data gave good evidence for the formation of carbamate ester
(urethane bonds) in the treated wood, with some differences related to the wood species. The thermal behavior of
untreated and treated wood was also evaluated.
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