▎ 摘　　要

NOVELTY - Chemically engineered pump with acid-corrosion resistant composite lining material comprises 70-75 pts. wt. polytetrafluoroethylene, 2-3 pts. wt. short glass fiber, 10-12 pts. wt. nylon 12 powder, 2-3 pts. wt. montmorillonite powder, 1-2 pts. wt. methyl methacrylate, 3-5 pts. wt. zirconium corundum grinding material, 1-2 pts. wt. graphene and 2-3 composite modified diatomite powder. The preparation comprises grinding polytetrafluoroethylene and short glass fiber, mixing in a colloid mill, uniformly placing in the colloid mill, and sieving by using 70-90-mesh sieve to obtain the product. USE - Used as a chemically engineered pump with acid-corrosion resistant composite lining material. ADVANTAGE - The material has low production cost, and simple molding process. DETAILED DESCRIPTION - Chemically engineered pump with acid-corrosion resistant composite lining material comprises 70-75 pts. wt. polytetrafluoroethylene, 2-3 pts. wt. short glass fiber, 10-12 pts. wt. nylon 12 powder, 2-3 pts. wt. montmorillonite powder, 1-2 pts. wt. methyl methacrylate, 3-5 pts. wt. zirconium corundum grinding material, 1-2 pts. wt. graphene and 2-3 composite modified diatomite powder. The preparation comprises finely grinding polytetrafluoroethylene and short glass fiber in a colloid mill, mixing with the other raw materials, and uniformly placing in the colloid mill, and sieving by using 70-90-mesh sieve to obtain the product. The composite modified diatomite powder comprises 80-90 pts. wt. diatomite, 10-20 pts. wt. silicon carbide, 1-2 pts. wt. titanium dioxide, 0.2-0.4 pts. wt. secondary alcohol-polyoxyethylene ether, 2-3 pts. wt. silane coupling agent KH-792, 0.1-0.2 pts. wt. tetrabutyl titanate, 2-5 pts. wt. zinc stearate and 1-2 pts. wt. methyl methacrylate. The composite modified diatomite powder is prepared by calcining diatomite for 3-4 hours at 800-830 degrees C, cooling, soaking in 10-12% hydrochloric acid for 1-2 hours, taking out, repeatedly washing using clean water, and drying to obtain the powder, adding water in an amount of 3-4 times into the obtained powder, stirring while heating at 70-80 degrees C, and then adding silicon carbide, secondary alcohol polyoxyethylene ether, methyl methacrylate and silane coupling agent KH-792, and then stirring for 20-30 minutes, cooling, and drying to obtain diatomite composite powder, and finally mixing diatomite composite powder with the other residual material, grinding, and dispersing to obtain the product.