Lignocellulosic-plastic compositesare a new group of composites in which natural fibres are introducedin a plastic material by using differ-ent plastic processing technologies.These composites are cheaper andhave higher strength and modulusin comparison with the composite produced with synthetic fibres spe-cially, when differences betweenfibres densities are considered [1].The main groups of plastics thatare used in lignocellulosic-plasticcomposites are semicrystalline plastics such as polyethylene (PE)and polypropylene (PP). Only ther-moplastics that melt at tempera-tures below 200ºC are commonlyused in making the composites because of the limited thermal sta- bility of natural fibres. Currently,PE is the most attractive thermo- plastic in making the natural fibre- plastic composites which are main-