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Method for manufacturing degradable plastic packaging bags

A technology for degrading plastics and packaging bags, applied in the field of plastic packaging bags, can solve problems such as serious white pollution of waste plastics, and achieve the effect of strengthening tensile strength and obvious degradation effect.

Inactive Publication Date: 2016-09-07
ANHUI HUILONG PACKAGING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In people's daily life, plastic packaging bags are widely used, but the "white pollution" caused by waste plastics is becoming more and more serious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A method for preparing a degradable plastic packaging bag, the packaging bag is composed of the following components in parts by weight: 45 parts of linear low-density polyethylene, 12 parts of calcium carbonate powder, 12 parts of corn stalk fiber, 2 parts of chitosan, 5 parts of corn starch, 3 parts of plasticizer, 1 part of toughening agent, 3 parts of degradation accelerator; the preparation method of the above-mentioned degradable plastic packaging bag is carried out according to the following steps:

[0015] (1) Add 45 parts of linear low-density polyethylene, 12 parts of calcium carbonate powder, 12 parts of corn stalk fiber, and 5 parts of corn starch into the high-mixer, adjust the speed of the high-mixer to 600 rpm, and adjust the heating temperature to 150 dehydration, stirring and mixing for 40 minutes;

[0016] (2) Add 2 parts of chitosan, 3 parts of plasticizer, 1 part of toughening agent, and 3 parts of degradation accelerator into the high mixer. Mi...

Embodiment 2

[0020] A method for preparing a degradable plastic packaging bag. The packaging bag is composed of the following components in parts by weight: 50 parts of linear low-density polyethylene, 10 parts of calcium carbonate powder, 15 parts of corn stalk fiber, 3 parts of chitosan, 8 parts of corn starch, 2 parts of plasticizer, 2 parts of toughening agent, 5 parts of degradation accelerator; the preparation method of above-mentioned degradable plastic packaging bag, carry out according to the following steps:

[0021] (1) Add 50 parts of linear low-density polyethylene, 10 parts of calcium carbonate powder, 15 parts of corn stalk fiber, and 8 parts of corn starch into the high-mixer, adjust the speed of the high-mixer to 600 rpm, and adjust the heating temperature to 150 dehydration, stirring and mixing for 40 minutes;

[0022] (2) Add 3 parts of chitosan, 2 parts of plasticizer, 2 parts of toughening agent, and 5 parts of degradation accelerator into the high mixer. Minutes la...

Embodiment 3

[0026] A preparation method of a degradable plastic packaging bag, the packaging bag is composed of the following components in parts by weight: 48 parts of linear low density polyethylene, 15 parts of calcium carbonate powder, 10 parts of corn stalk fiber, 2 parts of chitosan, 6 parts of corn starch, 5 parts of plasticizer, 1 part of toughening agent, and 7 parts of degradation accelerator; the preparation method of the above-mentioned degradable plastic packaging bag is carried out according to the following steps:

[0027] (1) Add 48 parts of linear low-density polyethylene, 15 parts of calcium carbonate powder, 10 parts of corn stalk fiber, and 6 parts of corn starch into the high-mixer, adjust the speed of the high-mixer to 600 rpm, and adjust the heating temperature to 150 dehydration, stirring and mixing for 40 minutes;

[0028] (2) Add 2 parts of chitosan, 5 parts of plasticizer, 1 part of toughening agent, and 7 parts of degradation accelerator into the high mixer. ...

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Abstract

The invention discloses a method for manufacturing degradable plastic packaging bags. The packaging bags are prepared from the following ingredients in parts by weight: 45-50 parts of linear low-density polyethylene, 10-15 parts of calcium carbonate powder, 10-15 parts of corn stalk fibers, 2-3 parts of chitosan, 5-8 parts of corn starch, 2-5 parts of plasticizer, 1-2 parts of toughening agent and 2-8 parts of degradation accelerant. According to the method, the linear low-density polyethylene, the calcium carbonate powder and the corn starch serve as raw materials and can be biologically degraded, and the corn stalk fibers are added to modify the polyethylene, so that the plastic packaging bags have sufficient strength and toughness.

Description

technical field [0001] The invention relates to a plastic packaging bag, in particular to a preparation method of a degradable plastic packaging bag. Background technique [0002] At present, plastic packaging bags have become an indispensable necessity in daily life, and they are also consumables. A large amount of plastic packaging bags are consumed every year. Plastic packaging bags are polymer compounds made of monomers as raw materials through addition polymerization or polycondensation reactions. They are generally made of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, and colorants. In people's daily life, plastic packaging bags are widely used, but the "white pollution" caused by waste plastics is becoming more and more serious. With the enhancement of people's awareness of environmental protection, how to alleviate white pollution has become a topic of increasing concern. Degradable plastic packaging bag is an emerging plast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L97/02C08L3/02C08L5/08C08K3/26B29C55/28B65D65/46
CPCB29C55/28B65D65/466C08L23/0815C08L2201/06C08L2205/035C08L2205/16C08L97/02C08L3/02C08L5/08C08K2003/265Y02W90/10
Inventor 陈晖
Owner ANHUI HUILONG PACKAGING CO LTD
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