▎ 摘　　要

NOVELTY - Producing carbon fiber by high-temperature carbonization of graphene oxide blended polyacrylonitrile comprises e.g. (i) dispersing graphene material in a solvent, and dispersing magnetic material into polypropylene eye polymerization solution to obtain graphite sheet/polypropylene eye compound solution, (ii) wet spinning or dry spray-wet spinning process of graphite sheet/polypropylene eye composite solution obtained in step (i) to obtain graphite sheet/polypropylene eye composite solution by solution spinning, (iii) performing ultra-high-stretching, pre-oxidation and carbonization treatment of graphite sheet/polypropylene eye composite fiber obtained in step (ii), drying, placing in an activation furnace in an air atmosphere to obtain pre-oxidized wire, introducing inert gas into activation furnace, heating pre-oxidation wire, then introducing activator, stopping inletting activator, cooling, stopping introducing inert gas, cooling, taking out and washing with water or solvent. USE - The method is useful for producing carbon fiber by high-temperature carbonization of graphene oxide blended polyacrylonitrile. ADVANTAGE - The carbon fiber: has high electrical conductivity, high strength and high thermal conductivity, improved the brittleness and flexibility and small average grain size. DETAILED DESCRIPTION - Producing carbon fiber by high-temperature carbonization of graphene oxide blended polyacrylonitrile, comprises (i) dispersing the graphene material in a solvent, and dispersing the magnetic material into polypropylene eye polymerization solution to obtain graphite sheet/polypropylene eye compound solution, (ii) wet spinning or dry spray wet spinning process of graphite sheet/polypropylene eye composite solution obtained in step (i) to obtain graphite sheet/polypropylene eye composite solution by solution spinning, (iii) performing ultra-high-stretching, pre-oxidation and carbonization treatment of the graphite sheet/polypropylene eye composite fiber obtained in the step (ii), then drying at 90-100 degrees C, placing in an activation furnace in an air atmosphere to obtain pre-oxidized wire, introducing inert gas into the activation furnace, and heating the pre-oxidation wire at 750-850 degrees C at a heating rate of 5-10 degrees C/minute, when heating at 650-700 degrees C, then introducing the activator at 750-850 degrees C at a constant temperature of 0.5-1 hour, stopping inletting activator, and then cooling to 200 degrees C at a rate of 5-10 degrees C/minute, stopping introducing inert gas, cooling and then taking out, washing with water or solvent to obtain final product.