▎ 摘　　要

NOVELTY - Preparing graphene polylactic acid two-component composite fiber involves treating polylactic acid with hydrochloric acid. The treated polylactic acid is treated with pyridine and a-bromopropionyl bromide. The treated polylactic acid obtained is treated with copper bromide (CuBr), 2,2-bipyridine and vinylpyrrolidone. The treated polylactic acid is dried to obtain component A. The graphene is added to obtain component B. The component A and component B are taken, melt-spinned, and obtained graphene polylactic acid bi-component composite fiber. USE - Method for preparing graphene polylactic acid two-component composite fiber. ADVANTAGE - The method enables to have a certain antibacterial ability.