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Structural differences between wood species: Evidence from chemical composition, FTIR spectroscopy, and thermogravimetric analysis
Author(s) -
Poletto Matheus,
Zattera Ademir J.,
Santana Ruth M. C.
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36991
Subject(s) - thermogravimetry , lignin , fourier transform infrared spectroscopy , thermogravimetric analysis , chemical composition , crystallinity , cellulose , thermal stability , chemistry , materials science , infrared spectroscopy , nuclear chemistry , chemical engineering , organic chemistry , composite material , engineering , inorganic chemistry
In this study, the relationship between wood cellulose crystallinity, influence of extractives on wood degradation, correlation between chemical composition, and physical properties of four wood species were investigated by chemical analysis, Fourier transform infrared (FTIR) spectroscopy, and thermogravimetry. The chemical analysis showed that Dipteryx odorata and Mezilaurus itauba (ITA) contained a higher quantity of extractives and lower quantities of holocellulose and lignin than Eucalyptus grandis (EUG) and Pinus elliottii . FTIR spectroscopy indicated that higher extractives content in ITA might be associated with more intense bands at 2920, 2850, and 1510 cm −1 . The lower values for hydrogen bond energy and hydrogen bond intensity showed that EUG contained more absorbed water than the other species. Thermogravimetry confirm that lower extractive contents leads to a better wood thermal stability. This study showed that through the methods used previous information about structure and properties of wood can be obtained before use it in composite formulations. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012