▎ 摘　　要

NOVELTY - Highly corrosion-resistant special optical fiber comprises a core prefabricated material being made of aluminum-graphene doped polymer, which is made by cladding material, annealing and stretching. The aluminum-graphene comprises aluminum and graphene. The polymer is polytetrafluoroethylene. The cladding material is polytetrafluoroethylene tube. USE - The highly corrosion-resistant special optical fiber is useful as light conduction tool in an optical cable of a house. ADVANTAGE - The special optical fiber has high corrosion resistance. The aluminum surface is easy to react with oxygen, generates compact oxide film, prevents the remaining aluminum further reaction, with the function of anti-corrosion, graphene has oleophilic and hydrophobic, can enhance the corrosion resistance in the wet environment, heat-resistant polytetrafluoroethylene, excellent cold resistance, can be used for a long time at -180-260degreesC, can resist acid, alkali resistance, anti-various organic solvent, and synergistically enhance corrosion resistance of the optical fiber. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a highly corrosion-resistant special optical fiber, which involves (a) preparing graphene by Hummer method, (b) weighing spherical aluminum powder and graphene in a glove box protected by argon, and adding them to the ball mill for ball milling to obtain aluminum powder-graphene, (c) weighing aluminum powder-graphene, and polytetrafluoroethylene, adding it to the reaction kettle, to purge oxygen in the sample with nitrogen, sealing the reaction kettle, slowly increasing the temperature while stirring under vacuum, and no longer increase after the temperature reaches a certain temperature, maintaining constant temperature, and embedding aluminum powder-graphene into the polytetrafluoroethylene network to obtain the fiber core prefabricated material, and (d) cleaning core prefabricated material and polytetrafluoroethylene (PTFE) tube are carefully cleaned with absolute ethanol to remove any dust or impurities at the interface of the cladding layer, annealing in a vacuum oven for at least 24 hours, eliminating residual stress in the material, wrapping core prefabricated material in a polytetrafluoroethylene tube, which is centered in the furnace, maintaining in vacuum during the entire drawing process, heating to a certain temperature, annealing, and drawing into an optical fiber.