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Preparation method of high-strength environment-friendly plastic bag for packaging

A high-strength, plastic bag technology, applied in the field of plastic bags for packaging, can solve problems such as inability to meet use requirements, use restrictions, environmental pollution, etc., achieve excellent structural strength and shock resistance, easy to implement, and reduce environmental pollution.

Inactive Publication Date: 2016-08-17
太仓市源创包装材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because traditional plastic bags cannot be degraded, they will seriously pollute the environment after being used and discarded, which greatly restricts their use.
At present, there are a large number of degradable plastic bags on the market, but most of them have low strength and cannot meet the requirements of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method for high-strength environment-friendly plastic bags for packaging, comprising the steps of:

[0020] (1) Preparation of plant fiber: 20 parts by weight of plant straw (including corn straw and rice straw mixed in a mass ratio of 1:3) and water accounting for 13% of the total weight of the plant straw are added to a high-speed grinding wheel grinding system for cracking into thick fiber bundles, and then use a high-speed deflagging machine to separate the above fiber bundles into single fibers at a speed of 5000r / min, and then use a plant fiber cutter to cut the single fibers into short fibers with a length of 5-8mm. fiber;

[0021] (2) Raw material processing: In parts by weight, take 10 parts of filler, 10 parts of plant starch, and 10 parts of calcium carbonate whiskers, mix them, then add 3 parts of silane coupling agent and 5 parts of polypropylene compatibilizer , stir and mix evenly with a high-speed mixer;

[0022] Wherein, the filler is a ...

Embodiment 2

[0027] A preparation method for high-strength environment-friendly plastic bags for packaging, comprising the steps of:

[0028] (1) Preparation of plant fiber: Add 30 parts by weight of plant straw (including corn straw and rice straw mixed in a mass ratio of 2:5) and water accounting for 18% of the total weight of the plant straw into a high-speed grinding wheel grinding system for cracking into thick fiber bundles, and then use a high-speed deflaker to separate the above fiber bundles into single fibers at a speed of 9000r / min, and then use a plant fiber cutter to cut the single fibers into short fibers with a length of 5-8mm. fiber;

[0029] (2) Raw material processing: In parts by weight, take 20 parts of filler, 20 parts of plant starch, and 20 parts of calcium carbonate whiskers, mix them, add 5 parts of silane coupling agent and 8 parts of polypropylene compatibilizer , stir and mix evenly with a high-speed mixer;

[0030] Among them, the filler is a mixture of wood ...

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Abstract

The invention discloses a preparation method of a high-strength environment-friendly plastic bag for packaging. The method comprises the following steps of plant fiber preparation, raw material treatment, extrusion pelletization, film blowing forming and bag forming. The tensile strength of the plastic bag ranges from 5 MPa to 8 MPa, the elongation at break of the plastic bag ranges from 10% to 20%, and the degradation rate of the plastic bag is 90% or above. The preparation method of the high-strength environment-friendly plastic bag for packaging is simple in technology and easy to achieve, and by means of the scientific formula design and preparation technology, the prepared plastic bag has excellent structural strength and anti-shock performance, has an all-dimensional protection effect on a packaged object, has biodegradation and light degradation performance and can effectively reduce environmental pollution.

Description

technical field [0001] The invention relates to the field of plastic bags for packaging, in particular to a method for preparing high-strength environment-friendly plastic bags for packaging. Background technique [0002] Plastic bags are widely used because of their cheapness, light weight, and easy storage, and they have always occupied an important position in people's lives. However, because the traditional plastic bags cannot be degraded, they will seriously pollute the environment after being used and discarded, which greatly limits their use. At present, there are a large number of degradable plastic bags on the market, but most of them have low strength and cannot meet the requirements of use. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a preparation method of a high-strength environment-friendly plastic bag for packaging, which can solve the above-mentioned problems existing in the existing packagi...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/06C08L33/00C08L3/02C08K13/06C08K9/06C08K3/34C08K7/08B29C55/28
CPCC08L97/02B29C55/28C08L2201/06C08L2203/16C08L2205/035C08L23/06C08L33/00C08L3/02C08K13/06C08K9/06C08K3/346C08K7/08
Inventor 王国良
Owner 太仓市源创包装材料厂
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