Mechanical and Morphological Properties of Silicon Carbide Filled Polypropylene Composites with PP-g-MA as Compatibilizer

In the present study, the series of PP/SiC composites, containing 5, 10, 15, 20 and 30 wt% of waste SiC particles from abrasive industry, were prepared in order to obtain composites with superior mechanical properties. PP/SiC composites with appropriate amount of SiC were used in order to study the effect of polypropylene-grafted-maleic anhydride (PP-g-MA) as a compatibilizer. PP-g-MA loadings of 0, 1, 3, 5, 7, and 10 wt% were filled composites material by using a two roll mill, extruder and shaped in a hydraulic compression molding machine. Mechanical properties of polymer composites such as hardness (shore D), Izod impact strength (notched), tensile strength, young's modulus and SEM analysis were investigated over a range of compositions. It was found that PP-g-MA was effectively enhanced the mechanical properties of composite materials, including an increasing of impact strength, young's modulus, tensile strength and hardness.