In this research, a new bio-plastic composite was developed using Cyperus Odoratus (CY) as natural filler along with Polypropylene (PP) matrix. PP/CY composites were prepared using different CY size, fine size at (0-63) and coarse size at (150-250 ) and using different PP/CY ratio at (100/0, 95/5, 90/10 and 85/15). The extrusion process followed by injection molding process was conducted for PP/CY composites fabrication. The tensile and morphological characteristics of PP/CY samples were evaluated. The results suggest that the addition of CY content (fine size) up to 95/5 PP/CY ratio gave highest tensile strength (TS) value. The increasing of CY content, particularly CY coarse size into PP/CY composites has decreased the TS. By contrast, the high CY content, particularly CY coarse size shows highest Modulus indicating that the sample became stiffer and more rigid. The increasing of stiffness and rigidity of PP/CY composites as CY content increased has reduced the flexibility. Therefore, the elongation at break of the composites decreased. The tensile fractured surface of composites was evaluated using SEM analysis. SEM micrographs show that the low CY content, particularly CY fine size was well bonded in PP matrix in contrast to high CY content, particularly CY coarse size.
