Environment-friendly polyethylene garbage bag easy to decompose and preparation process

A preparation process and technology of garbage bags, which are applied in the field of garbage bags, can solve the problems of polyethylene materials being difficult to degrade, poor thermoplasticity, and unfavorable popularization and use, and achieve the effect of increasing degradable performance, improving rheological properties, and facilitating popularization and use

Pending Publication Date: 2022-03-25
南通恒鑫新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing garbage bags are made of polyethylene materials, and the demand for garbage bags is relatively large. Therefore, there are certain requirements for the use of garbage bags and their preparation processes in the market; but most of the existing garbage bags are all made of polyethylene. The material is the raw material, polyethylene material is not easy to degrade, and it is easy to cause serious waste of resources and environmental pollution.

Method used

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  • Environment-friendly polyethylene garbage bag easy to decompose and preparation process

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0020] Example 1:

[0021] An environmentally friendly polyethylene easily decomposable garbage bag, the formula includes: high-density polyethylene, modified starch, biochar, lignocellulose aerogel, silane coupling agent and silanized bentonite, the parts by weight of each component They are: 25 parts of starch, 60 parts of high density polyethylene, 25 parts of biochar, 5 parts of lignocellulose aerogel, 3 parts of silane coupling agent and 10 parts of silanized bentonite.

[0022] A preparation process of an environmentally friendly polyethylene easily decomposable garbage bag, comprising: step 1, preparation of modified starch; step 2, biochar treatment; step 3, preparation of silanized bentonite; step 4, mixing and granulation; step 5, blowing Plastic molding.

[0023] Wherein in the above-mentioned step 1, at first, starch and nano-silicon dioxide are uniformly mixed in a mass ratio of 25:1, and then microwave treatment is adopted for 5-10min to make a starch mixture, a...

Example Embodiment

[0028] Example 2:

[0029] An environmentally friendly polyethylene easily decomposable garbage bag, the formula includes: high-density polyethylene, modified starch, biochar, lignocellulose aerogel, silane coupling agent and silanized bentonite, the parts by weight of each component They are: 25 parts of starch, 75 parts of high density polyethylene, 20 parts of biochar, 6 parts of lignocellulose aerogel, 5 parts of silane coupling agent and 10 parts of silanized bentonite.

[0030] A preparation process of an environmentally friendly polyethylene easily decomposable garbage bag, comprising: step 1, preparation of modified starch; step 2, biochar treatment; step 3, preparation of silanized bentonite; step 4, mixing and granulation; step 5, blowing Plastic molding.

[0031]Wherein in the above-mentioned step 1, firstly, starch and nano-silicon dioxide are uniformly mixed at a mass ratio of 25:1, and then microwaved for 5-10min to make a starch mixture, and the starch used is ...

Example Embodiment

[0036] Example 3:

[0037] An environmentally friendly polyethylene easily decomposable garbage bag, the formula includes: high-density polyethylene, modified starch, biochar, lignocellulose aerogel, silane coupling agent and silanized bentonite, the parts by weight of each component They are: 20 parts of starch, 65 parts of high density polyethylene, 20 parts of biochar, 8 parts of lignocellulose aerogel, 7 parts of silane coupling agent and 12 parts of silanized bentonite.

[0038] A preparation process of an environmentally friendly polyethylene easily decomposable garbage bag, comprising: step 1, preparation of modified starch; step 2, biochar treatment; step 3, preparation of silanized bentonite; step 4, mixing and granulation; step 5, blowing Plastic molding.

[0039] Wherein in the above-mentioned step 1, firstly, starch and nano-silicon dioxide are uniformly mixed at a mass ratio of 25:1, and then microwaved for 5-10min to make a starch mixture, and the starch used is...

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Abstract

The invention discloses an environment-friendly polyethylene garbage bag easy to decompose and a preparation process. The environment-friendly polyethylene garbage bag is prepared from high-density polyethylene, modified starch, charcoal, lignocellulose aerogel, a silane coupling agent and silanized bentonite. The preparation process comprises the following steps: step 1, preparing modified starch; step 2, biochar treatment; step 3, preparation of silanized bentonite; step 4, mixing and granulating; 5, blow molding is carried out; natural starch is replaced by the modified starch, so that the thermoplasticity is improved, the rheological property can be improved, the modified starch can be uniformly dispersed in the high-density polyethylene, and the processing forming performance is improved; the porous structure biochar, the lignocellulose aerogel and the starch are matched to provide a breeding place and nutrients for microorganisms, so that the degradability of the garbage bag in the soil environment is improved; the raw materials are wide in source, low in cost and convenient to popularize and use.

Description

technical field [0001] The invention relates to the technical field of garbage bags, in particular to an environment-friendly polyethylene garbage bag which is easily decomposed and a preparation process thereof. Background technique [0002] Most of the existing garbage bags are made of polyethylene materials, and the demand for garbage bags is relatively large. Therefore, there are certain requirements for the use of garbage bags and their preparation processes in the market; but most of the existing garbage bags are all made of polyethylene. The material is the raw material, polyethylene material is not easy to degrade, and it is easy to cause serious waste of resources and environmental pollution. However, the existing environmentally friendly degradable garbage bags require high requirements for raw materials and processing technology, and the thermoplasticity of the materials used is poor. It is inconvenient to process, and the degradation effect is relatively poor, wh...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L3/04C08K3/36C08K9/02C08K7/24C08K9/06C08K3/34C08J5/18B29C35/16B29C55/28
CPCC08J5/18B29C55/28B29C35/16B29C2035/1658C08K2201/011C08J2323/06C08J2403/04C08K3/36C08K9/02C08K7/24C08K9/06C08K3/346
Inventor 吴昊
Owner 南通恒鑫新材料有限公司
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