Abstract
This study investigated the properties of recycled polypropylene (RPP)/peanut shell powder (PSP) composites under the effect of electron beam (EB) irradiation. RPP/PSP composites were prepared by melt-mixing and compression moulding with 0 to 40 wt. % of PSP loading. The fabricated composites were then irradiated using 2.0 MeV EB accelerator at a fixed dose of 40 kGy. The properties of non-irradiated and irradiated composites were compared and characterized by tensile properties, Fourier transform infrared (FTIR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The results in tensile strength and tensile modulus of irradiated RPP/PSP composites show an increment while decrement in elongation at break. The thermal stability of irradiated composites was also improved compared to non-irradiated composites. The enhanced interfacial adhesion between components was evidenced by SEM morphology.
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