▎ 摘　　要

NOVELTY - Method (100) involves providing graphene oxide-polyvinylidene fluoride (GO-PVDF) composite (114) comprising graphene oxide (102) dispersed in polyvinylidene fluoride (PVDF) (104), where the GO-PVDF composite has a transmission Fourier-transform infrared (FTIR) minimum transmittance ratio of β-phase PVDF to α-phase PVDF of 1 or less, mixing (108) a mixture comprising a GO-PVDF composite, a carrier fluid which is immiscible with the PVDF and optionally an emulsion stabilizer at a temperature equal to or more than melting point or softening temperature of the PVDF to disperse the GO-PVDF composite in the carrier fluid, cooling the mixture to below the melting point or softening temperature of the PVDF to form GO-PVDF particles, and separating the GO-PVDF particles from the carrier fluid, where the GO-PVDF particles comprise the graphene oxide dispersed in the PVDF and the GO-PVDF particles have transmission FTIR minimum transmittance ratio of β-phase PVDF to α-phase PVDF of 1 or less. USE - Method for making GO-PVDF composite. ADVANTAGE - The GO-PVDF particles hav enhanced β-phase crystallinity. The method is capable of improving dispersion of the graphene oxide in PVDF which increase amount of β-phase crystallinity because more surface area of the graphene oxide is exposed to the PVDF and the graphene oxide preferentially orients PVDF in the β-phase crystalline structure. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a composition, which comprises GO-PVDF particles comprising graphene oxide dispersed in PVDF, where the GO-PVDF particles have transmission FTIR minimum transmittance ratio of β-phase PVDF to α-phase PVDF of 1 or less. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart of the method. 100Method 102Graphene oxide 104PVDF 106Solvent 108Mixing step 110Mixture