High-performance shrinkage film and preparation method thereof
A shrink film, high-performance technology, applied in the field of packaging film, can solve the problems of the shrinking furnace temperature is not too high, the shrinkage rate is not high, the shrinkage effect is not good, etc., to achieve the effect of fast shrinkage, high transparency and high sealing strength
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Embodiment 1
[0027] In terms of parts by weight, the raw materials include: 30 parts of polypropylene, 30 parts of linear low-density polyethylene, 35 parts of ultra-low density polyethylene, 2 parts of slippery agent, and 3 parts of anti-blocking agent. Among them, 30 parts of polypropylene (PP) include 20 parts of FS6612 polypropylene and 10 parts of 3980FL polypropylene.
[0028] FS6612 polypropylene is produced by Singapore Polyolefin Company, the model is FS6612;
[0029] 3980FL polypropylene is produced by Exxon Mobil Corporation, the model is 3980FL.
[0030] Linear low-density polyethylene (LLDPE), produced by Dow Chemical, the model is 2045G;
[0031] Ultra-low density polyethylene (ULDPE), produced by Dow Chemical, the model is 4203.
[0032] The production process of the five-layer biaxially oriented polyolefin heat-shrinkable film is:
[0033] Step A: Weigh the materials required for the outer layer, the inner three layers, and the inner layer, premix them separately, and st...
Embodiment 2
[0041] In terms of parts by weight, the raw materials include: 30 parts of polypropylene, 35 parts of linear low-density polyethylene, 30 parts of ultra-low density polyethylene, 2 parts of slippery agent, and 3 parts of anti-blocking agent. Among them, 30 parts of polypropylene (PP) include 20 parts of FS6612 polypropylene and 10 parts of F5606 polypropylene.
[0042] FS6612 polypropylene is produced by Singapore Polyolefin Company, the model is FS6612;
[0043] F5606 polypropylene is produced by CNPC, the model is F5606;
[0044] Linear low-density polyethylene (LLDPE), produced by Dow Chemical, the model is 2045G;
[0045] Ultra-low density polyethylene (ULDPE), produced by Dow Chemical, the model is 4203.
[0046] The production process of the five-layer biaxially oriented polyolefin heat-shrinkable film is:
[0047] Step A: Weigh the materials required for the outer layer, the inner three layers, and the inner layer, premix them separately, and stir them evenly.
[00...
Embodiment 3
[0055] In terms of parts by weight, the raw materials include: 30 parts of polypropylene, 65 parts of linear low-density polyethylene, 3 parts of slippery agent, and 2 parts of anti-blocking agent. Among them, 30 parts of polypropylene (PP) include 25 parts of FS6612 polypropylene and 10 parts of 3980FL polypropylene.
[0056] FS6612 polypropylene is produced by Singapore Polyolefin Company, the model is FS6612;
[0057] 3980FL polypropylene is produced by Exxon Mobil, the model is 3980FL;
[0058] Linear low-density polyethylene (LLDPE), produced by Dow Chemical, the model is 2645;
[0059] The production process of the five-layer biaxially oriented polyolefin heat-shrinkable film is:
[0060] Step A: Weigh the materials required for the outer layer, the inner three layers, and the inner layer, premix them separately, and stir them evenly.
[0061] Step B: The uniformly stirred mixture is sent to the extruder for processing to obtain a plasticized and homogenized melt. The...
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