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Circulating utilization type packing material

A packaging material and raw material technology, applied in the field of recycled packaging materials, can solve the problems of limited use range, soil agglomeration, and affecting plant growth, etc., and achieve the effect of high practical value and high strength

Inactive Publication Date: 2016-08-24
TIANJIN JINLICHENG PACKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Packaging products play a very important role in people's daily life and bring a lot of convenience to people's life, but most of the existing plastic packaging materials, such as plastic bags, polyethylene plastic foam, food packaging bags, etc. They are disposable, but they are degraded for too long after being discarded, which will bring many potential hazards to the environment: entering the soil will cause the soil to agglomerate, and when decomposed, a large amount of harmful substances will enter the soil and affect the growth of plants; Swallowed by animals may result in animal death etc.
At present, some people use incineration or landfill for the convenience of disposal, which will cause air pollution or pollution of land and rivers.
[0003] Although environmentally friendly recyclable high-strength bio-packaging plastics are also used to replace traditional plastics, many biodegradable plastics have been developed at home and abroad, but the price of these bio-packaging materials is very high, about 3-10 times the price of ordinary plastics. It limits the scope of its use, especially for our country, it is necessary to consider the comprehensive consideration of price and performance to manufacture biological packaging materials with excellent performance and low price

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A recyclable packaging material is made of the following raw materials in parts by weight: 30 parts of starch; 30 parts of polylactic acid; 5 parts of plant fiber; and 5 parts of vinyl / vinyl ketone copolymer.

[0018] The preparation process of the above-mentioned recyclable packaging material is as follows: the mixture of raw materials is stirred and mixed, extruded and sheared to change the structure of starch and cellulose, and then granulated by a twin-screw extruder, and then molded. The screw speed of the twin-screw extruder is 100r min -1 , the extrusion temperature was 120°C.

Embodiment 2

[0020] A recycling packaging material is made of the following raw materials in parts by weight: 60 parts of starch; 10 parts of polylactic acid; 15 parts of plant fiber; and 1 part of vinyl / vinyl ketone copolymer.

[0021] The preparation process of the above-mentioned recyclable packaging material is as follows: the mixture of raw materials is stirred and mixed, extruded and sheared to change the structure of starch and cellulose, and then granulated by a twin-screw extruder, and then molded. The screw speed of the twin-screw extruder is 100r min -1 , the extrusion temperature was 120°C.

Embodiment 3

[0023] A recyclable packaging material is made of the following raw materials in parts by weight: 40 parts of starch; 20 parts of polylactic acid; 10 parts of plant fiber; and 3 parts of vinyl / vinyl ketone copolymer.

[0024] The preparation process of the above-mentioned recyclable packaging material is as follows: the mixture of raw materials is stirred and mixed, extruded and sheared to change the structure of starch and cellulose, and then granulated by a twin-screw extruder, and then molded. The screw speed of the twin-screw extruder is 100r min -1 , the extrusion temperature was 120°C.

[0025] The polymer material prepared in the above-mentioned examples adopts the outdoor landfill method. The material is first cut into flakes, and then the flake test pieces are buried in moist soil, and the soil is kept in a dark and humid environment for 50 days. , it was found that the flaky results had been broken down without residue.

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PUM

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Abstract

The invention discloses a circulating utilization type packing material. The circulating utilization type packing material is prepared from, by weight, 30-60 parts of starch, 10-30 parts of polylactic acid, 5-15 parts of plant fibers and 1-5 parts of vinyl / vinyl ketone copolymers. The circulating utilization type packing material has the advantages of availability to raw materials, high practical value, high strength, circulating utilization and degradability.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a recycling packaging material. Background technique [0002] Packaging products play a very important role in people's daily life and bring a lot of convenience to people's life, but most of the existing plastic packaging materials, such as plastic bags, polyethylene plastic foam, food packaging bags, etc. They are disposable, but they are degraded for too long after being discarded, which will bring many potential hazards to the environment: entering the soil will cause the soil to agglomerate, and when decomposed, a large amount of harmful substances will enter the soil and affect the growth of plants; Swallowed by animals may result in animal death and more. At present, some people use incineration or landfill methods for the convenience of disposal, which will cause air pollution or pollution of land and rivers. [0003] Although environmentally friendly recyclab...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): C08L3/02C08L67/04C08L3/10C08L97/02
CPCC08L3/02C08L3/10C08L67/04C08L2201/06C08L2205/035C08L2205/16C08L97/02
Inventor 刘红锦刘红玉
Owner TIANJIN JINLICHENG PACKING
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