▎ 摘　　要

NOVELTY - A method of manufacturing graphene masterbatches includes the following steps of: melt-mixing a polymer material and a graphene powder having a mass fraction between 2 wt% to 8 wt% into a mixture, uniformly adding additives and chain extender to the mixture, and finally, making a molten raw material which is melt-mixed with the polymer material, the graphene powder, the additives and the chain extender into a plurality of the graphene masterbatches. The present disclosure further includes a method of manufacturing a graphene diaphragm.