In this purpose, our approach is to develop a new method of fibers/polymer coupling consisting in
a unique operation of reactive compounding, based on an original chemistry of organosilanes in the
polymer melt. Our objective is to enhance the fibers/polymer interface by using two functionalized
organosilanes simultaneously. The method is then to graft covalently one of these functions on the
polymer chains and the other one onto hemp surface. In parallel, formation of SieOeSi network between
the two grafted organosilanes occurs during reactive extrusion. The achievement of this grafting of hemp
fibers and thermoplastic matrix during a single compounding operation constitutes a new route for the
elaboration of bio-based composites