▎ 摘　　要

NOVELTY - A graphene thermal underwear fabric is prepared by dispersing graphene into dispersion 3-aminopropyl triethoxysilane, stirring at rotating speed of 2000-3000 revolutions/minute (rpm), mixing with 3,4-ethylenedioxythiophene, uniformly stirring, feeding into centrifuge, centrifuging to obtain precipitate, drying, mixing dried precipitate, cotton dried fiber and soybean fiber according to ratio of 1:100-120:100-110, entering helical extruder, melting, blending and extruding, granulating, spinning, winding, and stretching. The dosage of graphene and dispersion is 1:10-20. USE - Method for preparing graphene thermal underwear fabric (claimed). ADVANTAGE - The product solves unstable and washing resistance problems.