Gas drainage pipe and preparation method thereof

The invention relates to the technical field of pipes for coal seams, in particular to a gas drainage pipe and a preparation method thereof. The gas drainage pipe is prepared by mixing the following raw materials: 100 parts of synthetic plastic resin, 5-10 parts of a plasticizer, 5-7 parts of a stabilizer, 1-4 parts of a foaming agent, 3-6 parts of a lubricant, 2-5 parts of a flame retardant, 2-5parts of an antistatic agent and 38-42 parts of filler. The flame retardant is composed of glass fiber, stearic acid and aluminum hydroxide, and the antistatic agent is composed of stearamide propyl hydroxyethyl quaternary ammonium nitrate, fatty amine polyoxyethylene ether and conductive carbon black. By adding the flame retardant and the antistatic agent, the prepared pipe has excellent flame retardancy and antistatic property, and has higher structural strength. Besides, micropores are generated in the forming process of the gas drainage pipe prepared through the method, waste of raw materials during secondary dril