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Journal of Engineering
Volume 2013, Article ID 329379, 9 pages
Research Article

Plasticized Biodegradable Poly(lactic acid) Based Composites Containing Cellulose in Micro- and Nanosize

Institute of Wood and Paper Technologies, Faculty of Wood Sciences, University of West Hungary, 9400 Sopron, Hungary

Received 28 August 2012; Revised 8 November 2012; Accepted 9 November 2012

Academic Editor: Ying-Ling Liu

Copyright © 2013 Katalin Halász and Levente Csóka. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The aim of this work was to study the characteristics of thermal processed poly(lactic acid) composites. Poly(ethylene glycol) (PEG400), microcrystalline cellulose (MCC), and ultrasound-treated microcrystalline cellulose (USMCC) were used in 1, 3, and 5 weight percents to modify the attributes of PLA matrix. The composite films were produced by twin screw extrusion followed by film extrusion. The manufactured PLA-based films were characterized by tensile testing, differential scanning calorimetry (DSC), scanning electron microscopy (SEM), wide angle X-ray diffraction (WAXD), and degradation test.