Evaluation of the effect of coupling agent on mechanical properties of recycled polyethylene/recycled polyethylene terephthalatecomposites

The effect of two coupling agents (Maleic anhydride-grafted polypropylene (PP-g-MA) and Maleic anhydride-grafted polyethylene (PE-g-MA)) on mechanical properties of PE matrix was studied. Recycled polyethylene terephthalate (PET) was used as reinforcement. Tensile test was carried out to investigate mechanical properties. An SEM microscope was applied to evaluate the dispersion of PET particles. Results showed that by increasing the coupling agent (CA) content the surface hardness increased for both CAs. Moreover, maximum and minimum values were observed in diagrams of yield point elongation, tear energy, and tensile modulus versus CA content.

Keywords:

PP-g-MA , PE-g-MA , Recycled Polyethylene , PET , Mechanical property