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Preparation method of easily-degradable packing material

A packaging material and easy-to-degrade technology, which is applied in the field of preparation of easily-degradable packaging materials, can solve the problems of difficult-to-degrade polymer packaging materials and pollution, and achieve the effects of improving degradable performance, environmental friendliness, and reducing degradation time

Inactive Publication Date: 2018-02-23
周顺花
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional polymer packaging materials are difficult to degrade in nature. While bringing convenience to people, they also cause huge pollution. Therefore, we urgently need to study an environmentally friendly packaging material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method for easily degradable packaging materials, comprising the following steps:

[0017] 1) Calcium carbonate and montmorillonite are mixed and ball milled until the average particle size is 200nm to obtain filler mixed powder; in parts by weight, the distribution ratio of each component is: 70 parts of calcium carbonate and 30 parts of montmorillonite;

[0018] 2) Mix the filler mixed powder prepared in step 1) with lignocellulose and iron stearate to obtain modified mixed powder; in parts by weight, the distribution ratio of each component is: 28 parts of filler mixed powder, 12 parts of lignocellulose , 8 parts of iron stearate;

[0019] 3) Mix the modified mixed powder prepared in step 2) with polypropylene at a weight ratio of 1:3, and put it in a screw extruder to extrude and granulate. The extrusion working temperature of the extruder is 165°C-260°C ℃.

Embodiment 2

[0021] A preparation method for easily degradable packaging materials, comprising the following steps:

[0022] 1) Mix calcium carbonate and montmorillonite by ball milling until the average particle size is 500nm to obtain filler mixed powder; in parts by weight, the distribution ratio of each component is: 70 parts of calcium carbonate and 30 parts of montmorillonite;

[0023] 2) Take the filler mixed powder prepared in step 1) and mix it with lignocellulose and iron stearate to obtain modified mixed powder; in parts by weight, the distribution ratio of each component is: 25 parts of filler mixed powder, 8 parts of lignocellulose , 6 parts of iron stearate;

[0024] 3) Mix the modified mixed powder prepared in step 2) with polypropylene at a weight ratio of 1:3-5, and put it in a screw extruder to extrude and granulate. The working temperature of the extruder is 200°C-230°C ℃.

Embodiment 3

[0026] A preparation method for easily degradable packaging materials, comprising the following steps:

[0027] 1) Mix calcium carbonate and montmorillonite by ball milling until the average particle size is 500nm to obtain filler mixed powder; in parts by weight, the distribution ratio of each component is: 70 parts of calcium carbonate and 30 parts of montmorillonite;

[0028] 2) Take the filler mixed powder prepared in step 1) and mix it with lignocellulose and iron stearate to obtain modified mixed powder; in parts by weight, the distribution ratio of each component is: 25 parts of filler mixed powder, 8 parts of lignocellulose , 6 parts of iron stearate;

[0029] 3) Mix the modified mixed powder prepared in step 2) with polypropylene at a weight ratio of 1:5, and put it in a screw extruder to extrude and granulate. The working temperature of the extruder is 200°C-230°C.

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Abstract

The invention discloses a preparation method of an easily-degradable packing material. The method comprises the following steps: 1) performing mixing and ball milling on 50-70 parts by weight of calcium carbonate and 20-60 parts by weight of montmorillonite until the average particle size is 200-800nm, thus obtaining filler mixing powder; 2) mixing 20-28 parts by weight of filler mixing powder prepared in step 1), 8-12 parts by weight of lignocellulose, and 3-8 parts by weight of iron stearate to obtain modified mixing powder. The packing material prepared by the method has the advantages of being low in environmental pollution, easy to degrade, and short in degrading time.

Description

technical field [0001] The invention relates to a preparation method of an easily degradable packaging material. Background technique [0002] With the rapid development of my country's packaging industry, the role of packaging production in promoting the construction of the national economy and improving the material and cultural life of the people has become increasingly apparent. As an independent industry system, the development of the packaging industry has been included in the national economic and social development plan. [0003] Traditional polymer packaging materials are difficult to degrade in nature. While bringing convenience to people, they also produce huge pollution. Therefore, we urgently need to study an environmentally friendly packaging material. Contents of the invention [0004] The technical problem to be solved by the present invention is to overcome the above disadvantages of the prior art: to provide a method for preparing a packaging material th...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K9/04C08K3/26C08K3/34
CPCC08K9/08C08K3/26C08K3/346C08K9/04C08K2003/265C08K2201/003C08L2201/06C08L23/12
Inventor 周顺花
Owner 周顺花
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