▎ 摘　　要

NOVELTY - A graphene composite heat carrier comprises 0.1-5 %mass modified graphene and 95-99.9 %mass pure water. The carrier has neutral pH, and does not produce physical and chemical reaction when mixed with water. USE - Graphene composite heat carrier for nuclear reactor and thermoelectric and ship power unit, and as coolant for cooling mechanical equipment and offshore operating platform for closed cycle heat exchange in ships (all claimed). ADVANTAGE - The graphene composite heat carrier has excellent thermal conductivity, stability and desired heat dissipation index, and is environmentally-friendly. Modified graphene has low surface tension, excellent dispersibility and hydrophilic property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of graphene composite heat carrier.