Study on Physical and Mechanical Properties of Wood flour / ABS Composites

The aim of this research is study on physical and mechanical properties of wood flour/ Acrylonitrile Butadiene Styrene (ABS) based on effect of SMA as coupling agent (0، 4 phc) and wood flour filler loading (30،40، 50% of total weight) and virgin and recycled ABS. Samples of composites were made by injection molding method and physical tests including long term water absorption and thickness swelling and mechanical tests containing hardness and tensile strength and modulus of them were performed according to ASTM standards method. The results showed that by increasing the amount of wood flour water absorption، water absorption coefficient، thickness swelling، hygroscopic thickness swelling rate، hardness، tensile strength and modulus of composites were increased. Using of virgin ABS in making of composites increased the tensile properties، hardness composites and decreased water absorption، thickness swelling and parameters of them، in long term immersion. Using of SMA in composites decreased hardness of composites.