▎ 摘　　要

NOVELTY - High-toughness PVC pipe material comprises a PVC pipe main body, where the inner ring wall of the PVC pipe main body is coated with a layer of anti-corrosion coating, the outer ring wall of the PVC pipe main body is coated with a layer of wear-resistant coating. The PVC pipe main body comprises 40-50 pts. wt. PVC resin, 15-25 pts. wt. maleic anhydride graft copolymer, 10-20 pts. wt. hydrotalcite, 8-10 pts. wt. lubricant, 1-3 pts. wt. polyethylene wax, 4-6 pts. wt. nano-calcium carbonate, 3-5 pts. wt. antioxidant, 2-4 pts. wt. auxiliary agent, 3-5 pts. wt. ultraviolet absorbent, 2-4 pts. wt. thiobisphenol, 3-5 pts. wt. phosphite ester, 1-3 pts. wt. phenolic resin crosslinking agent, 5-7 pts. wt. fiber complex, 0.5-1 pts. wt. maleic anhydride, 1-3 pts. wt. heat stabilizer and 1-2 pts. wt. modified auxiliary agent. USE - Used as high-toughness PVC pipe material. ADVANTAGE - The material: is environmentally-friendly; adopts PVC resin as the main material and adding hydrotalcite and maleic anhydride graft copolymer as the main material to reduce the cost of the PVC pipe and enhances the pressure-bearing performance and impact resistance of PVC pipes, which has higher social use value and application prospects. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing high-toughness PVC pipe material comprising adding basic tartaric acid rare earth stabilizer, nano rare earth oxide, calcium oleate, magnesium isooctoate, phosphite ester, pentaerythritol and beta-diketone into the high speed stirrer, stirring for 15-20 minutes at 55-60 degrees C, adding zinc iso-octoate and lanthanum isooctoate, stirring for 12-15 minutes, cooling to obtain the heat stabilizer, (b) mixing the graphene fiber, ceramic fiber, carbon fiber and crosslinking agent aqueous solution to obtain the mixed fiber solution, spinning the mixed solution, washing and drying by trifluorooctyl triethoxysilane, obtaining the fiber complex, (c) accelerating the accelerator Mercapto Benzothiozole (MBT), sodium hypochlorite, aluminum acetylacetonate, palmitic acid and fatty acid sodium in isopentenyl ether to obtain solution A, dissolving the calcium lignosulfonate in the dodecylamine polyoxyethylene ether to obtain the solution B, mixing the solution A and solution B, ultrasonically dispersing uniformly, raising the temperature to 65-70 degrees C, reacting for 6-8 hours under the condition of stirring, filtering, drying to obtain the modified auxiliary agent, (d) adding PVC resin and maleic anhydride graft copolymer in the hot mixing pot, heating for 5-8 minutes, orderly adding hydrotalcite, lubricant, polyethylene wax, nano calcium carbonate, antioxidant and auxiliary stabilizer, mixing ultraviolet absorbent, thiobisphenol, phosphite ester, phenolic resin crosslinking agent, fiber complex, maleic anhydride, heat stabilizer and modified auxiliary agent for 8-10 minutes, adding to the parallel double-screw extruder for melting and mixing and granulating to obtain the mixed particles, where the extruder barrel temperature is 170-180 degrees C, using a conical twin-screw extruder to extrude and form the obtained mixed particles to obtain the high-toughness PVC pipe.