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Polymer Bulletin

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21-03-2016 | Original Paper

Thermal and chemical characterization of sugarcane bagasse cellulose/lignin-reinforced composites

Authors: Patrícia C. Miléo, Matheus F. Oliveira, Sandra M. Luz, George J. M. Rocha, Adilson R. Gonçalves

Published in: Polymer Bulletin | Issue 11/2016

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Abstract

The aim of this work was to obtain and evaluate the thermal properties of castor oil polyurethane composites reinforced with lignin and cellulose from sugarcane bagasse. Sugarcane bagasse was pretreated and then delignified; then, the cellulose and lignin were milled. To produce the polyurethane, the mass ratio between polyol (castor oil) and diisocyanate was set to 1.5:1.0. The matrix was reinforced with a range of cellulose and lignin concentrations. The cellulose and lignin obtained by this process were chemically characterized. The composites were analyzed through SEM micrographs of fractured surfaces and thermal analysis. The presence of lignin or cellulose fibers in the polyurethane matrix decreases the thermal stability compared with the neat matrix.

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Title: Thermal and chemical characterization of sugarcane bagasse cellulose/lignin-reinforced composites
Authors: Patrícia C. Miléo
Matheus F. Oliveira
Sandra M. Luz
George J. M. Rocha
Adilson R. Gonçalves
Publication date: 21-03-2016
Publisher: Springer Berlin Heidelberg
Published in: Polymer Bulletin / Issue 11/2016
Print ISSN: 0170-0839
Electronic ISSN: 1436-2449
DOI: https://doi.org/10.1007/s00289-016-1647-x

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