Mechanical and Thermal Properties of Less Common Natural Fibres and Their Composites

Abstract

Interest in the utilization of renewable resources is increasing because of depleting natural resources, environmental awareness and economic considerations. Natural fibre composites (biocomposites) have already attracted significant attention from the academic and industry (mainly automotive) fields. Natural fibres like kenaf, hemp, sisal, flax and jute have been the subject of extensive investigations for composite applications and therefore the focus of this chapter is on less common lignocellulosic fibres which are inexpensive and abundantly available at present. These fibres will be presented in terms of extraction methods, chemical, morphological, thermal and mechanical properties with a view to assessing their suitability as biofibres in composite applications. The introduction of these less common natural fibres in thermoplastic and thermosetting matrices is reviewed and compared with the traditional and much more common natural fibres, while the very last part of the chapter is dedicated to the development of cellulose-based nanocomposites, which is perceived as one of the most promising research fields related to lignocellulosic-based products.