Long-carbon-chain nylon pipe and preparation method thereof

The invention belongs to the technical field of macromolecule plastics, and particularly relates to a long-carbon-chain nylon pipe and a preparation method thereof. The long-carbon-chain nylon pipe is prepared from, by weight, 55-95 parts of long-carbon-chain nylon resin, 1-30 parts of a liquid plasticizer, 1-5 parts of an antioxidant, 1-5 parts of a lubricant and 1-4 parts of a light stabilizer. The long-carbon-chain nylon resin, the antioxidant, the lubricant and the light stabilizer are mixed and then added into a double-screw extruder, then the liquid plasticizer is added, and extrusion granulation is performed to obtain the long-carbon-chain nylon pipe. Various prepared hoses for automobiles have the strong toughness, can resist thermal oxidation, light oxidation, oil and the like, and are high in cost performance and suitable for being popularized on the national automobile market.