Sichuan FCLEP New Material Co., Ltd. has applied for a patent titled "A Multi-layer Composite Fuel Pipe", publication number CN 119687287 A. The invention discloses a multi-layer composite fuel pipe, belonging to the technical field of conductive fuel pipes. The technical solution includes: a long carbon chain polyamide layer, the material of which is polydecamethylene sebacamide; a barrier conductive layer, the material of which is poly(decamethylene isophthalamide); and the long carbon chain polyamide layer and the barrier conductive layer are fixedly arranged from outside to inside. The thickness of the long carbon chain polyamide layer is 0.05～0.95mm, the thickness of the barrier conductive layer is 0.05～0.95mm, and the overall wall thickness of the fuel pipe is 1±0.15mm. The multi-layer composite fuel pipe provided by this invention features low extraction, high barrier, high strength, resistance to methanol gasoline, ethanol gasoline, zinc chloride solution, and anti-electrostatic breakdown capability. While meeting the national new (China VI) emission standards, it reduces the risks of carbon deposition, electrostatic breakdown, and leakage in fuel pipelines.
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