Compatibilization strategies for eco-composites containing natural fibres

In this work we reported on the preparation and characterization (thermal, mechanical and morphological) of a series of composites containing wool (WFs) or hemp fibres (HFs) as NFs and polypropylene (PP) or biodegradable polyesters as matrices. In particular, different amounts of WFs were used, and suitable pre-treatments or chemical modification were developed as well. The use of adhesion promoters, such as maleinized PP, was also investigated for PP/wool composites. The best results were obtained for: i) PP/maleinized PP/silanized WF composites, and ii) bio-polyester/PVA-treated WF composites.