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
5 Cites 1 Cited by

AI-Extracted 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 ...
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Method used

Experimental result shows, in degradation process, starch and plant fiber can be decomposed completely by microorganism under the wet environment of soil, and the product after decomposing can enter in soi...
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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.

Technology Topic

KetonePolymer chemistry +7

Examples

  • Experimental program(3)
  • Effect test(1)

Example Embodiment

[0016] Example 1
[0017] A recyclable packaging material is made of the following raw materials in parts by weight: 30 parts by weight of starch; 30 parts by polylactic acid; 5 parts by plant fiber; and 5 parts by vinyl/vinyl ketone copolymer.
[0018] The above-mentioned recycling packaging material preparation process is as follows: the mixture of raw materials is mixed, extruded and sheared to change the structure of starch and cellulose, and then pelletized by a twin-screw extruder, and then compression molded. The screw speed of the twin screw extruder is 100r·min -1 , The extrusion temperature is 120°C.

Example Embodiment

[0019] Example 2
[0020] A recycled packaging material, which is made of the following raw materials by weight: 60 parts by weight of starch; 10 parts by polylactic acid; 15 parts by plant fiber; and 1 part by vinyl/vinyl ketone copolymer.
[0021] The above-mentioned recycling packaging material preparation process is as follows: the mixture of raw materials is mixed, extruded and sheared to change the structure of starch and cellulose, and then pelletized by a twin-screw extruder, and then compression molded. The screw speed of the twin screw extruder is 100r·min -1 , The extrusion temperature is 120°C.

Example Embodiment

[0022] Example 3
[0023] A recyclable packaging material is made of the following raw materials by weight: 40 parts by weight of starch; 20 parts by polylactic acid; 10 parts by plant fiber; 3 parts by vinyl/vinyl ketone copolymer.
[0024] The above-mentioned recycling packaging material preparation process is as follows: the mixture of raw materials is mixed, extruded and sheared to change the structure of starch and cellulose, and then pelletized by a twin-screw extruder, and then compression molded. The screw speed of the twin screw extruder is 100r·min -1 , The extrusion temperature is 120°C.
[0025] The polymer materials prepared in the above examples adopt the outdoor landfill method. The material is first cut into sheets, and then the sheet test pieces are buried in moist soil, and the soil is kept in a dark and humid environment for 50 days , It turns out that the flakes have been decomposed and there is no residue.

PUM

no PUM

Description & Claims & Application Information

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