METHOD FOR PREPARING GRAPHENE SPHERE ELECTROCONDUCTIVE ADHESIVE AND GRAPHENE SPHERE ELECTROCONDUCTIVE ADHESIVE

摘要

The present invention also relates to a method for producing the graphene-based conductive adhesive, which comprises the steps of: preparing a monomer mixture by providing a monomer, an initiator, a dispersant, and a solvent; Producing a microsphere; Step 2: heating or plasma pretreatment of the polymer microspheres; Step 3: fabricating graphene balls by coating or growing graphene on the surface or inside of the polymer microspheres pretreated in step 2 by chemical vapor deposition; Step 4: Take a predetermined proportion of epoxy resin, curing agent and accelerator and mix and stir until uniformly dispersed to prepare an epoxy resin gel system; Step 5: dispersing the graphene balls produced in step 3 in the epoxy resin gel system to obtain a graphene ball conductive adhesive preparation material; Step 6: Degassing the graphene-negative conductive adhesive preparation material to obtain a graphene-negative conductive adhesive.