▎ 摘　　要

NOVELTY - Modified white graphene polyester composite fiber comprises 84-99% polyester chips, 0.1-15% white graphene and 0.1-1% modified agent. USE - Used as modified white graphene polyester composite fiber. ADVANTAGE - The composite fiber has antibacterial effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing composite fiber, comprising (i) separately drying polyester chips and white graphene, grinding to obtain polyester chips powder, adding the white graphene powder and the modifier to the polyester chip powder, mixing to obtain white graphene polyester mixed powder; (ii) adding white graphene polyester mixed powder to a twin-screw extruder for extrusion granulation to obtain modified white graphene polyester masterbatch; and (iii) drying modified white graphene polyester masterbatch, adding to a twin-screw extruder for heating and melting and spinning through the spinning box into bundles.