Abstract: Waste polyolefin / wood flour composites were prepared, and the influence of PP-g-MAH and other additives on the mechanical properties and microstructure of the composites was studied. The processing property of the composites containing both PP-g-MAH and EVA was significantly better than that containing EVA alone. When the EVA content was 2% and the PP-g-MAH content was higher than 9%, the composite material had a lower shear torque. When the PP-g-MAH was 9~12%, the recycled polyolefin formed a continuous phase structure, the processing and mechanical properties of the composites were excellent.

Key words: polypropylene grafted maleic anhydride, recycled polyolefin, wood flour, composite, processing ability, mechanical property