PE flyash composition for producing high rigidity large caliber pipe
A large-diameter pipe and fly ash technology, which is applied in the direction of hoses, pipes, pipes/pipe joints/fittings, etc., can solve the problem of inability to ensure high dispersion of fly ash, uneven internal and external surfaces of pipes, and affecting the isotropy of pipes and other problems, to achieve the effect of small stress concentration, reduced shrinkage rate and increased rigidity
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Embodiment 1
[0007] Embodiment 1: It is composed of 100 parts of PE raw materials, 45 parts of fly ash reinforced masterbatch, and 0.5 part of color masterbatch, uniformly mixed by general methods. Wherein the fly ash reinforced masterbatch is made by the following method: a) get 100 parts of 250 mesh fly ash, coupling agent is 3 parts of isopropyl trioleoyloxy titanate, lubricant is 3 parts of liquid paraffin, in Stir at high speed for 3 minutes at 90°C; b) Add 10 parts of low-density polyethylene and stir at high speed for 10 minutes at 100°C; c) Put it into a special screw extruder, extrude and granulate at 145°C. All parts mentioned above are parts by weight. When making pipes, the composition described in this example is added into a screw extruder, and extruded at a temperature of 150° C. to make pipes. The measured pipe rigidity is 6000N (4000N of the pipe manufactured by the prior art under the same conditions), which is increased by 50%, and the inner and outer surfaces of the pi...
Embodiment 2
[0008] Embodiment 2: It is composed of 100 parts of PE raw materials, 55 parts of fly ash reinforced masterbatch, and 0.7 parts of color masterbatch. The general method is uniformly mixed, wherein: the fly ash reinforced masterbatch is made by the following method; a) take 350 objects 100 parts of fly ash, 5 parts of isopropyl trioleyloxy titanate as coupling agent, 2.5 parts of liquid paraffin, stirred at 93°C for 4 minutes at high speed; Stir at high speed for 7 minutes at ℃; c) Enter into a special screw extruder, extrude and granulate at 160℃. All parts mentioned above are parts by weight. When making pipes, the composition described in this example was added into a screw extruder, and extruded at a temperature of 190° C. to make pipes. The measured pipe rigidity is 5600N (4000N of the pipe manufactured by the prior art under the same conditions), which is improved by 40%, and the inner and outer surfaces of the pipe are smooth without depression.
Embodiment 3
[0009] Embodiment 3: It is composed of 100 parts of PE raw materials, 60 parts of fly ash reinforced masterbatch, and 1 part of color masterbatch, uniformly mixed by general method. Wherein the fly ash reinforced masterbatch is prepared by the following method: a) take 100 parts of 450-mesh fly ash, 7 parts of silane coupling agent as the coupling agent, 2 parts of liquid paraffin, and stir at 95 ° C for 5 minutes at high speed; b ) Add 25 parts of high-density polyethylene, and stir at 120°C for 5 minutes at high speed; c) enter a special screw extruder, extrude and granulate at 170°C. All parts mentioned above are parts by weight. When making pipes, the composition described in this example was added into a screw extruder, and extruded at a temperature of 230° C. to make pipes. The measured pipe rigidity is 5200N (the rigidity of the pipe manufactured by the prior art under the same conditions is 4000N), which is improved by 30%. The inner and outer surfaces of the pipe ar...
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