ABSTRACT

By the term “composite,” we mean a system made of at least two or more distinct phases – a continuous polymeric phase representing the matrix, usually showing interesting structural properties scarcely suitable from the applicative point of view; and a solid phase consisting of stiff, strong fibrous material implanted within the continuous phase. The arrangement obtained from the phases combination produces a totally different system with improved structural, mechanical, and chemicalphysical performance [2]. When one or all the phases of the composite come from biological sources, we deal with biocomposites. They are characterized by continuous phases of biopolymers or polymers coming from renewable and available origin, such as polysaccharides and fibers coming from plant or crop-processing products (cotton, flax, or hamp, cellulose-modified structure such as viscose). The choice of fibers with peculiar structural and geometrical properties, i.e., degree of polymerization, polysaccharide content, “aspect ratio,” i.e., the ratio between the fiber length and diameter, determines the mechanical performances of the final product [1].