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Production method of degradable plastic woven bag

A technology for degrading plastics and woven bags, applied in the field of plastics, can solve problems such as the decrease of tensile strength and elongation at break, and achieve the effects of reducing pollution, excellent antistatic performance, and good degradation performance.

Inactive Publication Date: 2016-06-15
KANGPING PLASTIC WOVEN IND CLUSTER INTEGRATION SERVICE CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the catalysis of hot oxygen and manganese stearate, the weak bond breaks first to generate macromolecular free radicals; then hydroperoxide is generated under the action of oxygen; hydroperoxide decomposes under the action of manganese ions, Then the disproportionation reaction of macromolecular free radicals can cause further degradation of polymer chains, and finally generate a large number of relatively stable small molecular products, such as alcohols, ketones, carboxylic acids, etc., resulting in the tensile strength and elongation at break of the material. Decline in elongation

Method used

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  • Production method of degradable plastic woven bag
  • Production method of degradable plastic woven bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Mix 30 parts of waste recycled plastic granules, 28 parts of high-density polyethylene, 15 parts of low-density polyethylene, 10 parts of starch, 1 part of antistatic agent, 2 parts of defoaming agent, 1 part of vitamin C-1, polyethylene glycol 1000-2 parts, 0.3 parts of catalyst, 0.5 parts of photosensitizer, and 6 parts of compatibilizer were put into a high-speed mixer and mixed evenly, and then dried at 90°C for 25 minutes;

[0020] 2) Feed the dried mixture into a twin-screw extruder, extrude hollow microtubes one by one through an extruder head with multiple annular channels, and control the traction ratio to 1:5, after preliminary cooling by water Then it is pulled by the oven to control the draft ratio to 5, and then after heat setting, it shrinks at a low traction speed and controls the retraction ratio to 0.97. Finally, it is wound by the cam combined energy-saving winding machine and sent to the circular loom for further processing. weave.

[0021] 3) The...

Embodiment 2

[0023] 1) Mix 35 parts of waste recycled plastic granules, 24 parts of high-density polyethylene, 12 parts of low-density polyethylene, 10 parts of starch, 1 part of antistatic agent, 2 parts of defoaming agent, 1 part of vitamin C-1, polyethylene glycol 1000-2 parts, 0.4 parts of catalyst, 0.5 parts of photosensitizer, and 6 parts of compatibilizer were respectively put into a high-speed mixer and mixed evenly, and then dried at 90°C for 25 minutes;

[0024] 2) Feed the dried mixture into a twin-screw extruder, extrude hollow microtubes one by one through an extruder head with multiple annular channels, and control the traction ratio to 1:5, after preliminary cooling by water Then it is pulled by the oven to control the draft ratio to 5, and then after heat setting, it shrinks at a low traction speed and controls the retraction ratio to 0.97. Finally, it is wound by the cam combined energy-saving winding machine and sent to the circular loom for further processing. weave.

...

Embodiment 3

[0027] 1) Mix 40 parts of waste recycled plastic granules, 20 parts of high-density polyethylene, 10 parts of low-density polyethylene, 10 parts of starch, 1 part of antistatic agent, 2 parts of defoaming agent, 1 part of vitamin C-, polyethylene glycol 1000-2 parts, 0.5 parts of catalyst, 0.5 parts of photosensitizer, and 6 parts of compatibilizer were put into a high-speed mixer and mixed evenly, and then dried at 90°C for 25 minutes;

[0028] 2) Feed the dried mixture into a twin-screw extruder, extrude hollow microtubes one by one through an extruder head with multiple annular channels, and control the traction ratio to 1:5, after preliminary cooling by water Then it is pulled by the oven to control the draft ratio to 5, and then after heat setting, it shrinks at a low traction speed and controls the retraction ratio to 0.97. Finally, it is wound by the cam combined energy-saving winding machine and sent to the circular loom for further processing. weave.

[0029] 3) The ...

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Abstract

The invention discloses a degradable plastic woven bag, in which regenerated waste plastic granules are added, so that the pollution of the waste plastic granules to environment is reduced, and further raw materials are saved and production cost is reduced. By means of addition of degradable starch and a catalyst manganese stearate, the plastic woven bag has good degradability. The plastic woven bag has excellent antistatic performance due to addition of an antistatic agent. The plastic woven bag breaks within about 25 days, which is shorter than that of common garbage bags. A fungus invasion test proves that the plastic can be invaded and broken by fungus, thereby achieving the composite effects of photo-degradation and bio-degradation.

Description

technical field [0001] The present invention belongs to the technical field of plastics, in particular to a degradable plastic woven bag. Background technique [0002] Polyethylene (PE) is an important general-purpose plastic, often used to make films or plastic bags, and is widely used in daily life. PE has the characteristics of high quality and low price, odorless and non-toxic, low water absorption, excellent mechanical properties and good molding process, but because of its stable properties, it also brings the problem of "white pollution". It also has potential hazards. The plastic structure is stable, it is not easy to be degraded by natural microorganisms, and it will not be separated for a long time in the natural environment. This means that if waste plastic waste is not recycled, it will become pollutants in the environment and accumulate forever, which will cause great harm to the environment. There are many defects in the traditional treatment methods (landfil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L3/02C08L71/02D03D3/02D03D15/00B29C45/00B29C43/24B29L7/00D03D15/283D03D15/50D03D15/533
CPCD03D3/02D03D15/00C08L23/06B29C43/24B29C45/0053C08L2205/025C08L2205/035C08L2201/06C08L2201/04C08L2207/062C08L2207/066D10B2321/021D10B2401/12B29L2007/00C08L3/02C08L71/02
Inventor 葛铁军肖尚雄张铁赢周莹
Owner KANGPING PLASTIC WOVEN IND CLUSTER INTEGRATION SERVICE CENT
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