▎ 摘　　要

NOVELTY - Preparing graphene high-filterability fiber involves taking polyester slices, a thickening agent, an adsorption material, ion exchange resin, graphene, a dispersing agent and carbon fiber powder as raw materials. The polyester chips are added into first stirring kettle, set the reaction temperature for heating, and kept the temperature for stirring after the polyester chips are completely melted. The carbon fiber powder and a dispersing agent are sequentially added into the polyester melt, uniformly stirred to obtain a mixture A, and slowly cooled. The adsorbing material, the ion exchange resin and the graphene are heated and stirred in second stirring kettle, until the adsorbing material, the ion exchange resin and the graphene are uniformly stirred to obtain a mixture B. The mixture A and the mixture B are mixed, heated and kept the temperature, added a thickening agent and adjusted the viscosity of the mixture. USE - Method for preparing graphene high-filterability fiber. ADVANTAGE - The method improves filtering effect and mechanical properties of the fiber due to adding graphene and other raw materials to the fiber through process treatment, and the fiber meets the requirements of repeated high filtration. DETAILED DESCRIPTION - Preparing graphene high-filterability fiber involves taking polyester slices, a thickening agent, an adsorption material, ion exchange resin, graphene, a dispersing agent and carbon fiber powder as raw materials. The polyester chips are added into first stirring kettle, set the reaction temperature for heating, and kept the temperature for stirring after the polyester chips are completely melted. The carbon fiber powder and a dispersing agent are sequentially added into the polyester melt, uniformly stirred to obtain a mixture A, and slowly cooled. The adsorbing material, the ion exchange resin and the graphene are heated and stirred in second stirring kettle, until the adsorbing material, the ion exchange resin and the graphene are uniformly stirred to obtain a mixture B. The mixture A and the mixture B are mixed, heated and kept the temperature, added a thickening agent and adjusted the viscosity of the mixture. The mixture is poured with adjusted viscosity into a spinning machine for spinning, and controlled the extrusion temperature and the extrusion rate to obtain fiber filaments with high filtering effect. The fiber filaments are stretched, elasticized and twisted to obtain the functional fiber filaments.