▎ 摘　　要

NOVELTY - A non-aqueous proton exchange membrane preparation method involves adding 1.6-6 g PVC to 20-40 ml N,N-dimethylformamide, formulating into PVC solution with mass fraction of 8-15% followed by preparing sulfonated graphene oxide solution, fixing glass substrate on homogenizer, utilizing pipette to take 2-4 ml PVC solution with mass fraction of 8-15%, dropping on the glass substrate, spin coating at 500-2000 rotations per minute for 10-30 seconds, baking in oven at 80 degrees C for 10-30 minutes, utilizing pipette to take 1-2 ml sulfonated graphene oxide solution with mass fraction of 0.5-2%, dropping on the glass substrate, baking in oven at 80 degrees C for 10-30 minutes, obtaining PVC-sulfonated graphene oxide single layered spin coated membrane, repeating the above steps 5 times, coating final layer with PVC solution, drying in an oven at 80 degrees C for 20 minutes, obtaining PVC-sulfonated graphene oxide five layered composite membrane and soaking the composite membrane in phosphoric acid solution. USE - Method for preparing non-aqueous proton exchange membrane. ADVANTAGE - The method enables preparing non-aqueous proton exchange membrane with controllable thickness (73-100 mu m), high mechanical properties and better proton conductivity by utilizing sulfonated graphene oxide with excellent electrical conductivity. DETAILED DESCRIPTION - A non-aqueous proton exchange membrane preparation method involves adding 1.6-6 g PVC to 20-40 ml N,N-dimethylformamide, formulating into PVC solution with mass fraction of 8-15%, adding 0.1-0.6 g sulfonated graphene oxide to 20-30 ml dimethylformamide, formulation into sulfonated graphene oxide solution with mass fraction of 0.5-2%, fixing glass substrate on homogenizer, utilizing pipette to take 2-4 ml PVC solution with mass fraction of 8-15%, dropping on the glass substrate, spin coating at 500-2000 rotations per minute for 10-30 seconds, baking in oven at 80 degrees C for 10-30 minutes, utilizing pipette to take 1-2 ml sulfonated graphene oxide solution with mass fraction of 0.5-2%, dropping on the glass substrate, baking in oven at 80 degrees C for 10-30 minutes, obtaining PVC-sulfonated graphene oxide single layered spin coated membrane, repeating the above steps 5 times, coating final layer with PVC solution, drying in an oven at 80 degrees C for 20 minutes, obtaining PVC-sulfonated graphene oxide five layered composite membrane and soaking the composite membrane in phosphoric acid solution with mass fraction of 85% at 25-40 degrees C for 24-48 hours.