• A novel PMIA braided tube reinforced PFA hollow fiber membrane was fabricated via a no-solvent green method, exhibiting robust thermal and solvent resistance.
• Graphene doping synergistically with sintering temperature optimized membrane surface morphology and pore structure, enhancing hydrophobicity and lipophilicity.
• The membrane achieved >97% separation efficiency for various oil products at 0.02 MPa, with stable flux recovery after recycling.
• The developed membrane shows high potential for efficient and sustainable oily wastewater treatment.