▎ 摘　　要

NOVELTY - Double-tube replaceable anti-static polymer emulsion nozzle, comprises a large inner bottle and a small inner bottle, which are arranged in an outer bottle. The large inner bottle is provided with a large pump core assembly (6). The large pump core assembly is provided with a large suction pipe (12). The small inner bottle is provided with a small pump core assembly (5). The small pump core assembly is provided with a small suction pipe (13). The large pump core assembly and the small pump core assembly are respectively fastened and fixed in a pump core hole of a large ring (7) in a sealing manner, and a large valve rod of the large pump core assembly and a small valve rod of the small pump core assembly respectively extend out of the large ring. The outer diameter of the inner head cap is sleeved with an outer cap (3). The clamping columns of the outer head cap are inserted into clamping hole (402) on two sides of the top of the inner head cap. USE - Double-tube replaceable anti-static polymer emulsion nozzle. ADVANTAGE - The double-tube replaceable anti-static polymer emulsion nozzle has reasonable structural design, convenient use and assembly, compact and stable assembly, good tightness and stability, stable liquid discharge by pressing, comfortable operation, good performance of preparation materials and feasible production method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing double-tube replaceable anti-static polymer emulsion nozzle, which involves: using inner head cap (4), i.e. an anti-static polymer inner head cap, and the anti-static polymer material includes 100 pts. wt. graphene/PVC resin, 5-15 pts. wt. impact modifier, 3-6 pts. wt. antistatic agent, 2-5 pts. wt. heat stabilizer, and 1-3 pts. wt. processing modifier. The 500 ml three-necked round-bottomed flask is used, added 100-200 ml PVC resin slurry at room temperature, and mechanically stirred the PVC resin slurry particles to uniformly suspend in the water phase, added 50-100 ml graphene oxide slurry, stirred mechanically evenly, heated up to 60-90°, where mass ratio of graphene oxide slurry and reducing agent is 1: 1-10: 1, mechanically stirred reaction for 1-3 hours, cooled down to below 50°, centrifuged or stand, dried and sieve to obtain the graphene/PVC resin, where impact modifier is chlorinated polyethylene, the antistatic agent is acetylene carbon black, and the thermal stabilizer is zinc calcium stearate, laurate and ricinoleate, and the processing modifier is methacrylate copolymer and acrylate copolymer; The dry mix of anti-static polymer functional composite material is prepared by adding graphene/PVC resin, impact modifier, antistatic agent, heat stabilizer and processing modifier into a mechanical mixer, firstly mixed at a low speed of 200-500 r/min for 2-5 minutes, and then stirred with high speed of 3000-5000 r/min for 4-6 minutes, mixed uniformly, cooled for 2-5 minutes and discharging, where discharged material is the dry mix of anti-static polymer material, ready for use. The dry blend for preparing anti-static polymer materials, is added to a twin-screw extruder, and the temperature is controlled at 165-180° for melt blending and extrusion, to obtain inner head cap of the anti-static polymer through the mold. DESCRIPTION OF DRAWING(S) - The drawing shows schematic cross-sectional view of double-tube replaceable anti-static polymer emulsion nozzle. 1Outer cover 2Cover 3Outer cap 4Inner cap 5Small pump core assembly 6Large pump core assembly 7Large ring 8Gasket 9Gland bush 10Ml inner bottle 11Ml inner bottle 12Large suction pipe 13Small suction pipe 14Ml outer bottle 303Inner cap buckle rib 401Location column 402Clamping hole 403Locking edge