METHOD FOR PREPARING GRAPHENE-POLYMER COMPOSITE POWDER AND FIBER

摘要

The present invention relates to a method for preparing graphene-polymer composite by adding graphene or expanded graphite nanoplate to a polymer and preparing graphene-polymer composite fiber using the composite. The method for preparing graphene-polymer composite comprises the steps of: acquiring a graphene-dispersed resin solution by dissolving a polymer resin in a polar organic solvent and adding and stirring graphene; treating the graphene-dispersed resin solution with supersonic waves; generating graphene-polymer composite solids by dropping the graphene-dispersed resin solution treated with supersonic waves into water; and acquiring graphene-polymer composite powder by pulverizing the generated graphene-polymer composite solids. Moreover, a graphene-polymer composite fiber can be acquired via melt spinning of the acquired graphene-polymer composite powder. [Reference numerals] (AA) Measure polymer resin; (BB) Measure graphene; (CC) Add the polymer resin into a solvent; (DD) Dissolve the polymer resin in the solvent by stirring; (EE) Add and stir the graphene in the solution of the polymer resin; (FF) Disperse the graphene with supersonic waves; (GG) Add the solution by spraying the solution into water; (HH) Coagulate during a process; (II) Filter; (JJ) Sieve during a process; (KK) Prepare for drying