Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 72, Issue 11, Pages 1304-1309Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2012.05.011
Keywords
All-cellulose composite; Mechanical properties; Thermomechanical properties; Scanning electron microscopy (SEM)
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All-cellulose composites (ACCs) were prepared by partial dissolution in ionic liquid and compared to composites with epoxy matrix. Wide-angle X-ray diffraction and scanning electron microscopy were used to reveal differences in the structure of the composites. In tensile tests, lyocell-fibre based ACCs showed similar strength and stiffness, yet superior extensibility compared to lyocell-epoxy composites. However, when flax fibres were used, tensile properties clearly inferior to flax-epoxy were observed. Dynamic-mechanical and thermogravimetric analysis revealed a favourable behaviour for ACC in terms of more diffuse thermal softening and increased resistance to thermal degradation. (C) 2012 Elsevier Ltd. All rights reserved.
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