▎ 摘　　要

NOVELTY - The graphene sheet is removed from multiwall carbon nanotube, to obtain a carbon nanotube having diameter of 0.3-200 nm. USE - For manufacturing carbon nanotube used for polymer composite material, semiconductor element, electrical conducting material and hydrogen storage material. ADVANTAGE - The carbon nanotube has excellent dispersibility with respect to N-methyl-2-pyrollidone (NMP), improved aspect ratio and large industrial value. DETAILED DESCRIPTION - The good solvent used in the carbon nanotube manufacture is non-proton-type polar solvent. An INDEPENDENT CLAIM is included for carbon nanotube.