▎ 摘　　要

NOVELTY - A graphene reinforced PET is prepared by compounding PET with dispersed graphene nanoplatelets using master-batch method to obtain greater than or equal to 1 master-batch pellets, where master-batch method effectively disperses graphene nanoplatelets within PET with a lower graphene nanoplatelet content to yield improved dispersion compared to higher graphene nanoplatelet content master-batches; and forming PET-graphene nanoplatelet nanocomposites comprising weight fractions of 0.5-15%. USE - Preparation of graphene reinforced PET utilizing injection molding. ADVANTAGE - Weight fractions result in an improvement in Young's modulus, while not affecting the strength of the PET. Ultrasound-assisted extrusion increases toughness of the PET with no effect on Young's modulus. Strain-induced crystallization improves mechanical properties of the PET as compared to thermally-induced crystallization. The addition of graphene to PET can improve the mechanical, barrier, thermal, and conductive properties of PET.