Wood-filled thermoplastic composites

Different physical properties of wood-filled thermoplastic materials produc ed by a special mixing and extrusion process are examined. The results show that the wood content and the hind of plastics are the main parameters tha t control the physical properties of composites. In general, wood-filled th ermoplastic materials exhibit mechanical properties comparable to those of customary wood fiber products, i.e., medium density fiberboard (MDF); howev er they show distinctly better behavior than the MDF and natural wood after exposure to moisture.