▎ 摘　　要

NOVELTY - A graphene material is dispersed in a thermoplastic to form a masterbatch by loading a first thermoplastic with a specific initial intrinsic viscosity (IV) into an extruder or a continuous mixer; loading a graphene material into the extruder; heating the first thermoplastic to a molten state in the presence of the graphene material to form the masterbatch having a mixture IV; and adjusting the mixture IV to a preselected target IV. USE - Dispersion of graphene material in a thermoplastic to form a masterbatch for use in injection molded parts or monofilament, thermoforming parts/sheets/films, technical and tire cord filaments, and industrial fibers, bottles and textiles (all claimed). ADVANTAGE - The method controls the intrinsic viscosity (IV) of PET and other thermoplastics while adding graphene type material into PET masterbatch and other thermoplastic based masterbatch. The method improves the mechanical and thermal properties of the thermoplastic resin. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart of the method for controlling the IV of PET and other thermoplastics while adding graphene type material into PET masterbatch and other thermoplastic based masterbatch.