Characterization of Interfacial and Mechanical Properties Between Fiber and Polymer Matrix in Composite Materials

The trend toward biobased materials is not only interesting in terms of environmental impact but also constitutes an alternative solution to fossil-based materials. Therefore, many scientists investigate the possibilities to reinforce some polymers with plant fibers ^[1,2]. However, the poor adhesion between fiber and matrix is the major problem when applying natural fibers ^[3,4]. Surface modification of fibers is necessary for improving their performance ^[5–7]. Therefore, the use of surfactants should have a significant impact on enhancing the mechanical properties of biocomposites. Good quality of dispersion-wettability and a homogeneous distribution of fiber within the matrix, as well as the level of interfacial interaction between the filler and the polymer, are the key points for the production of polymeric biocomposites with significantly improved properties ^[8].