Modified polyethylene corrugated pipe and preparing method thereof
A technology of polyethylene and bellows, which is applied in the direction of hoses, pipes, mechanical equipment, etc., can solve the problems of poor low-temperature impact resistance, low thermal deformation temperature, and poor heat resistance, and achieve good low-temperature impact resistance, Effect of high heat distortion temperature, excellent flame retardancy and electrical insulation
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Example Embodiment
[0012] [Example 1]
[0013] First, take 300 parts of polyethylene, 40 parts of polypropylene, 15 parts of polytetrafluoroethylene, 10 parts of calcium stearate, 16 parts of carbon black, 30 parts of EVA resin, 24 parts of sodium silicate powder, and Malay 36 parts of acid anhydride.
[0014] Then, pour the raw materials into a mixer and mix them at a speed of 40 rpm for 20 minutes. After the mixture is evenly mixed, add the mixture to a twin-screw extruder for blending and extrusion, and then granulate to obtain pelletized modified polyethylene Then pour the obtained granular modified polyethylene material into a potassium permanganate solution with a concentration of 5%, soak it for 5 hours, and dry it naturally before use.
[0015] Then, the pelletized modified polyethylene material is added to the extrusion molding machine, and the modified polyethylene corrugated pipe is manufactured by the extrusion molding method.
[0016] Finally, put the obtained modified polyethylene bellows...
Example Embodiment
[0017] [Example 2]
[0018] First, take 320 parts of polyethylene, 50 parts of polypropylene, 25 parts of polytetrafluoroethylene, 12 parts of calcium stearate, 22 parts of carbon black, 40 parts of EVA resin, 28 parts of sodium silicate powder, and Malay 42 parts of acid anhydride.
[0019] Then, pour the raw materials into the mixer and mix them at a speed of 60rpm for 15 minutes. After evenly mixing, add the mixture to the twin-screw extruder for blending and extrusion, and then granulate to obtain pelletized modified polyethylene Then pour the obtained granular modified polyethylene material into a potassium permanganate solution with a concentration of 8%, soak it for 3 hours, and dry it naturally before use.
[0020] Then, the pelletized modified polyethylene material is added to the extrusion molding machine, and the modified polyethylene corrugated pipe is manufactured by the extrusion molding method.
[0021] Finally, put the modified polyethylene bellows into an oven at 45°...
Example Embodiment
[0022] [Example 3]
[0023] First, take 310 parts of polyethylene, 45 parts of polypropylene, 20 parts of polytetrafluoroethylene, 11 parts of calcium stearate, 19 parts of carbon black, 35 parts of EVA resin, 26 parts of sodium silicate powder, and Malay 39 parts of acid anhydride.
[0024] Then, pour the raw materials into the mixer and mix them at a speed of 50 rpm for 18 minutes. After the mixture is evenly mixed, the mixture is added to the twin-screw extruder for blending and extrusion, and then pelletized to obtain pelletized modified polyethylene Then pour the obtained granular modified polyethylene material into a potassium permanganate solution with a concentration of 6.5%, soak it for 4 hours, and dry it naturally before use.
[0025] Then, the pelletized modified polyethylene material is added to the extrusion molding machine, and the modified polyethylene corrugated pipe is manufactured by the extrusion molding method.
[0026] Finally, put the obtained modified polyethy...
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