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Preparation method of environment-friendly master batch for plastic packing bag

A technology for packaging bags and masterbatches is applied in the field of preparation of environmentally friendly masterbatches for plastic packaging bags, which can solve the problems of occupying a lot of manpower and material resources, unable to contain dioxins, and removing the table without removing the capital, etc. The effect of suppressing dioxin and improving environmental performance

Inactive Publication Date: 2014-05-28
WUXI HUANGSHENG PACKING PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, environmental treatment equipment is expensive, occupies land and space, and requires frequent repairs and maintenance, so it takes a lot of manpower and material resources, and the treatment effect is not very ideal
In addition, although the above-mentioned treatment method can achieve certain effects, it does not fundamentally eliminate the generation of dioxins when waste plastics are burned. To prevent the generation of dioxins when waste plastics are burned, it is a treatment method that does not remove the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A kind of preparation method of environment-friendly masterbatch for plastic packaging bag, the composition of described environment-friendly masterbatch is: active manganese oxide 40%, silica powder 7%, stearic acid coupling agent 1.4%, paraffin 3%, oxidized oil 6%, lithium stearate 6%, and the balance is polyethylene; the preparation method is: use a high-speed mixer to fully mix the above materials for 30 minutes, and the rotating speed is 190 rpm; After kneading on the machine, extrude to make master batches. The kneading time is 20 minutes, the screw temperature is 185°C, and the screw speed is 230 rpm.

Embodiment 2

[0011] A kind of preparation method of environment-friendly masterbatch for plastic packaging bag, the composition of described environment-friendly masterbatch is: active manganese oxide 44%, silicon dioxide powder 5%, stearic acid coupling agent 1.0%, paraffin 5%, oxidized oil 4%, lithium stearate 8%, and the balance is polyethylene; the preparation method is: use a high-speed mixer to fully mix the above materials for 40 minutes, and the rotating speed is 170 rpm; After kneading on the machine, extrude to make master batches. The kneading time is 30 minutes, the screw temperature is 175°C, and the screw speed is 250 rpm.

Embodiment 3

[0013] A kind of preparation method of environment-friendly masterbatch for plastic packaging bag, the composition of described environment-friendly masterbatch is: active manganese oxide 41%, silicon dioxide powder 6.5%, stearic acid coupling agent 1.3%, paraffin 3.5%, oxidized oil 5.5%, lithium stearate 6.5%, and the balance is polyethylene; the preparation method is: use a high-speed mixer to fully mix the above materials for 33 minutes, and the rotating speed is 185 rpm; After kneading on the machine, extrude to make master batches. The kneading time is 23 minutes, the screw temperature is 182°C, and the screw speed is 235 rpm.

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PUM

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Abstract

The invention discloses a preparation method of an environment-friendly master batch for a plastic packing bag. The environment-friendly master batch comprises the following ingredients: 40-44% of activated manganese oxide, 5-7% of silicon dioxide powder, 1.0-1.4% of a stearic acid coupling agent, 3-5% of paraffin, 4-6% of oxygenated oil, 6-8% of lithium stearate, and the balance of polyethylene. The preparation method comprises the following steps: using a high-speed mixer to fully mix the materials for 30-40 minutes at the rotational speed of 170-190 rpm, and using a twin-screw extruder pelletizer to knead and extrude the mixture to prepare the master batch, wherein the kneading time is 20-30 minutes, the screw temperature is 175-185 DEG C, and the screw rotational speed is 230-250 rpm.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a method for preparing environmentally friendly masterbatches for plastic packaging bags. Background technique [0002] At present, environmental pollution is a problem that all countries in the world attach great importance to, especially the plastic waste that is not perishable and is extensive. Most countries still adopt incineration and volume reduction treatment. However, a large amount of harmful dioxins will be discharged during this treatment process. And pollute the environment, thus forcing people to solve it. Dioxin is composed of chlorobenzene compounds such as dichlorotoluene, dichloroethylbenzene and polychlorinated biphenyls. Its toxicity is 1000 times that of potassium cyanide. It is characterized by the presence of chlorine and benzene organic compounds. Synthesis starts at 200°C and above, and it can be cracked after staying at 850°C for 2 seconds. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/02C08K3/22C08K3/36C08K5/098C08J3/22B29B9/06
CPCC08L23/06B29B9/06B29C48/92B29C2948/9258B29C2948/92704C08K2003/2262C08L91/06C08K13/02C08K3/22C08K3/36C08K5/09C08K5/098
Inventor 黄盛
Owner WUXI HUANGSHENG PACKING PROD