▎ 摘　　要

NOVELTY - A graphene-reinforced polymer matrix composite comprises an essentially uniform distribution in a thermoplastic polymer matrix of 10-50% of total composite weight of particles selected from graphite microparticles, single-layer graphene nanoparticles, multi-layer graphene nanoparticles, and combinations of two or more where: at least 50 wt.% of the particles consist of single- and/or multi-layer graphene nanoparticles less than 50 nm thick along a c-axis direction. USE - The graphene-reinforced polymer matrix composite is for use in manufacturing an automotive, aircraft, watercraft or aerospace part, where the part is an engine part (claimed). ADVANTAGE - The graphene-reinforced polymer matrix composite is prepared by high efficiency mixing methods to transform polymer composites containing well-crystallized graphite particles into nano-dispersed single- or multi-layer graphene particles, the composites having various commercial applications and have numerous property advantages including increased specific stiffness and strength, enhanced electrical/thermal conductivity, and retention of optical transparency. DETAILED DESCRIPTION - A graphene-reinforced polymer matrix composite comprises an essentially uniform distribution in a thermoplastic polymer matrix of 10-50% of total composite weight of particles selected from graphite microparticles, single-layer graphene nanoparticles, multi-layer graphene nanoparticles, and combinations of two or more where: at least 50 wt.% of the particles consist of single- and/or multi-layer graphene nanoparticles less than 50 nm thick along a c-axis direction; and the thermoplastic polymer is selected from polyamides, polystyrenes, polyphenylene sulfides, high-density polyethylenes, acrylonitrile butadiene styrene (ABS) polymers, polyacrylonitriles, polylactic acids, polyglycolic acids, polylactic-glycolic acid copolymers (PLGA) and mixtures of two or more. An INDEPENDENT CLAIM is included for an automotive, aircraft, watercraft or aerospace part formed from the graphene-reinforced polymer matrix composite.