Polyethylene tearing film and preparation method thereof
A technology of polyethylene and tear film, which is applied in the field of packaging materials, can solve the problems of low elongation at break and low tensile strength of tear film, and achieve the effects of good fluidity, simple raw materials and good wear resistance
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Embodiment 1
[0022] Step 1: Weigh 100 parts of polyethylene, 0.1 part of antioxidant 1010, 13 parts of barium sulfate, 0.5 part of organic montmorillonite, 0.2 part of silane coupling agent, 1 part of DOP, and 4 parts of nano-titanium dioxide according to the ratio of parts by mass. 1 part, 2 parts of zinc oxide whiskers, 1 part of polyethylene wax, 10 parts of CPE.
[0023] The second step: Put all the raw materials into a high-speed mixer and mix evenly. The temperature of the mixer is 75°C, and mix for 5 minutes.
[0024] The third step: put the mixed material into the single-screw extruder, the temperature of the extruder is 190°C, 200°C, 210°C, 220°C, 230°C, the temperature of the head is 240°C, the temperature of the die is 200°C, and the stretching ratio 6 times.
[0025] The tensile strength of the product is 3g / den, and the elongation at break is 10%. It has low density, good toughness, good wear resistance, high tensile strength, and a linear density of 5kg / m.
Embodiment 2
[0027] Step 1: Weigh 100 parts of polyethylene, 0.2 parts of antioxidant 1010, 15 parts of barium sulfate, 2.5 parts of organic montmorillonite, 0.8 parts of silane coupling agent, 20 parts of DOP, and 16 parts of nano-titanium dioxide according to the ratio of parts by mass. 6 parts of zinc oxide whiskers, 2 parts of polyethylene wax, 30 parts of CPE.
[0028] Step 2: Put all the raw materials into a high-speed mixer and mix evenly. The temperature of the mixer is 95°C, and mix for 15 minutes.
[0029] The third step: put the mixed material into the single-screw extruder, the extruder temperature is 200°C, 210°C, 220°C, 230°C, 240°C, the head temperature is 250°C, the die temperature is 210°C, the stretching ratio 7 times.
[0030] The tensile strength of the product is 3.3g / den, and the elongation at break is 15%. It has low density, good toughness, good wear resistance, high tensile strength, and a linear density of 10kg / m.
Embodiment 3
[0032] Step 1: Weigh 100 parts of polyethylene, 0.12 parts of antioxidant 1010, 13.5 parts of barium sulfate, 1 part of organic montmorillonite, 0.3 parts of silane coupling agent, 5 parts of DOP, and 8 parts of nano-titanium dioxide according to the ratio of parts by mass. 3 parts of zinc oxide whiskers, 1.4 parts of polyethylene wax, and 15 parts of CPE.
[0033] The second step: Put all the raw materials into a high-speed mixer and mix evenly. The temperature of the mixer is 75°C, and mix for 5 minutes.
[0034] The third step: put the mixed material into the single-screw extruder, the temperature of the extruder is 190°C, 200°C, 210°C, 220°C, 230°C, the temperature of the head is 240°C, the temperature of the die is 200°C, and the stretching ratio 6 times.
[0035] The tensile strength of the product is 3.5g / den, and the elongation at break is 20%. It has low density, good toughness, good wear resistance, high tensile strength, and a linear density of 15kg / m.
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