▎ 摘　　要

NOVELTY - Material, comprises 100 pts. wt. polyvinyl chloride resin, 10-15 pts. wt. impact modifier, 5-10 pts. wt. antistatic agent, 2-8 pts. wt. flame retardant smoke inhibitor, 1-3 pts. wt. lubricant, 3-6 pts. wt. heat stabilizer, 5-15 pts. wt. reinforcing agent and 3-8 pts. wt. plasticizer USE - The material is useful in preparing pipe for underground coal mine (claimed). ADVANTAGE - The material: has excellent toughness, flame-retardant, smoke-inhibiting effect and antistatic performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the material comprising (i) mixing polyvinyl chloride resin, a heat stabilizer, a plasticizer and part of a lubricant for 3-5 minutes and heating to 65degrees Celsius, (ii) adding an impact modifier, antistatic agent, a flame-retardant smoke inhibitor and a reinforcing agent, mixing for 3-8 minutes and heating to 80-90degrees Celsius, (iii) adding the remaining lubricant, mixing for 5-8 minutes, heating to 105-110degrees Celsius and then cooling to room temperature, and (iv) adding the mixed materials into a double-screw extruder for granulation to obtain product; and (2) A polyvinyl chloride antistatic flame-retardant plasticizing pipe for underground coal mine, comprising an inner layer and an outer layer, where the inner layer and outer layer are made of the material.