Pullulan-nanofibrillated cellulose composite films with improved thermal and mechanical properties
authors Trovatti, E; Fernandes, SCM; Rubatat, L; Perez, DD; Freire, CSR; Silvestre, AJD; Neto, CP
nationality International
journal COMPOSITES SCIENCE AND TECHNOLOGY
author keywords Pullulan and nanofibrillated cellulose; Nanocomposites morphology; Mechanical properties; Thermal properties; Casting
keywords NANOCOMPOSITES; TRANSPARENT; CHITOSAN; BIOPOLYMER; BARRIER; STARCH
abstract Novel bionanocomposite films with improved thermal and mechanical properties, were prepared by casting water-based suspensions of pullulan and nanofibrillated cellulose. The effect of the addition of glycerol, as a plasticizer, on the properties of the materials was also evaluated. The ensuing materials were characterized in terms of morphology, thermal stability, crystalline structure and mechanical properties. All bionanocomposites were very homogeneous, translucent and showed considerable improvements in thermal stability (increments of up to 20 degrees C in the degradation temperature) and mechanical properties (increments of up to 5500% and 8000% in the Young's modulus and tensile strength, respectively, for films plasticized with glycerol) when compared to the unfilled pullulan films. Additionally, these novel bionanocomposite could be labeled as sustainable materials since they were prepared entirely from renewable resources and through a green approach. (C) 2012 Elsevier Ltd. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0266-3538
year published 2012
volume 72
issue 13
beginning page 1556
ending page 1561
digital object identifier (doi) 10.1016/j.compscitech.2012.06.003
web of science category Materials Science, Composites
subject category Materials Science
unique article identifier WOS:000307798400011
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  impact metrics
journal analysis (jcr 2017):
journal impact factor 5.160
5 year journal impact factor 5.202
category normalized journal impact factor percentile 98.077
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