▎ 摘 要
NOVELTY - Preparing composite fiber, comprises mixing 10-15 pts. wt. graphene, 2-4 pts. wt. dispersing agent, 100-150 pts. wt. high molecular polymer and stirring, granulating the mixture using a double-screw extruder, filtering the granule, spinning, cooling and molding obtained product, and stretching and heat shaping the fiber. The high molecular polymer is 1,2-polybutadiene, acrylic resin, chlorinated polypropylene or polypropylene. USE - The method is useful for preparing composite fiber (claimed). ADVANTAGE - The method prepares the composite fiber with high electrical conductivity and high strength.