Plastic packaging bag

A technology for packaging bags and plastics, applied in the field of plastic products, can solve the problems of garbage accumulation, ecological environment damage, inability to degrade, etc.

Inactive Publication Date: 2015-08-05
柳州蔚园塑料彩印包装有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing plastic packaging bags are basically made of polymer materials such as polyethylene and polypropylene. Such plastic packaging bags provide convenience, but because they cannot be degraded, they ar

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] This plastic packaging bag is made of the following components:

[0014] 15 kg of linear low-density polyethylene, 15 kg of heavy calcium carbonate powder, 15 kg of corn straw fiber, 3 kg of chitosan, 15 kg of corn starch, 18 kg of polyethylene, and 0.1 kg of toner.

[0015] The preparation method is as follows: add 15 kg of heavy calcium carbonate powder into a high-speed mixer, seal, heat and stir, the heating temperature is 70°C to 80°C, and the stirring time is 3 minutes, open the sealing cover to disperse the mist, and then add 18 kg of polyethylene and 15 1 kg of linear low density polyethylene, continue to heat and stir, the heating temperature is 70 ℃ ~ 80 ℃, stir for 8 minutes, add 3 kg of chitosan, 15 kg of cornstarch and 0.1 kg of toner to obtain a mixed material; then 15 kg Add corn stalk fiber from the fiberizing port of the twin-screw extruder, add the mixture obtained above into the twin-screw extruder, heat it to 190°C-210°C, and after 30 minutes, pass t...

Embodiment 2

[0017] This plastic packaging bag is made of the following components:

[0018] 18 kg of linear low-density polyethylene, 25 kg of heavy calcium carbonate powder, 20 kg of corn stalk fiber, 2 kg of chitosan, 10 kg of corn starch, 15 kg of polyethylene, and 1 kg of toner.

[0019] The preparation method is as follows: add 25 kg of heavy calcium carbonate powder into a high-speed mixer, seal, heat and stir, the heating temperature is 70°C-80°C, and the stirring time is 3 minutes, open the sealing cover to disperse the mist, and then add 15 kg of polyethylene and 18 1 kg of linear low density polyethylene, continue to heat and stir, the heating temperature is 70 ℃ ~ 80 ℃, stir for 15 minutes, add 2 kg of chitosan, 10 kg of cornstarch and 1 kg of toner to obtain a mixed material; then 20 kg Add corn stalk fiber from the fiberizing port of the twin-screw extruder, add the mixture obtained above into the twin-screw extruder, heat it to 190°C-210°C, and after 30 minutes, pass the mel...

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PUM

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Abstract

The invention discloses a plastic packaging bag, and relates to the technical field of plastic products. The plastic packaging bag is made of 15-18 parts of linear low-density polyethylene, 15-25 parts of heavy calcium carbonate powder, 15-20 parts of corn straw fibers, 2-3 parts of chitosan, 10-15 parts of corn starch, 15-18 parts of polyethylene and 0.1-1 part of toner. The linear low-density polyethylene, the heavy calcium carbonate powder and the corn starch serve as raw materials and can be biologically degraded, and the corn straw fibers are added into the polyethylene to modify the polyethylene, so that the plastic packaging bag has enough strength and toughness.

Description

technical field [0001] The invention relates to the technical field of plastic products, in particular to a plastic packaging bag. Background technique [0002] Compared with paper packaging bags, plastic flexible packaging has outstanding advantages such as moisture resistance and barrier properties, and is low in cost; therefore, plastic packaging bags have become indispensable in daily life and are also consumables, which consume a large amount every year plastic bags. Existing plastic packaging bags are basically made of polymer materials such as polyethylene and polypropylene. Such plastic packaging bags provide convenience, but because they cannot be degraded, they are used in large quantities and are not properly recycled, resulting in A large amount of rubbish accumulates, causing damage to the ecological environment and becoming the main source of "white pollution". More and more countries and regions have restricted the production, sale and use of plastic packagi...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L97/02C08L5/08C08L3/02C08K3/26
CPCC08L23/06C08L97/02C08L2201/06C08L2205/035C08L2205/16C08L23/0815C08L5/08C08L3/02C08K2003/265
Inventor 李国华
Owner 柳州蔚园塑料彩印包装有限责任公司
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