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A kind of bio-based environmental protection packaging bag and preparation method thereof

A packaging bag, bio-based technology, applied in biological packaging, packaging, wrapping paper, etc., can solve the problems of short service life, low mechanical properties, poor antibacterial performance, etc., and achieve improved service life, high mechanical properties, and controllable specifications. Effect

Active Publication Date: 2022-08-09
常州龙骏天纯环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the following problems in the prior art, such as poor antibacterial performance, low mechanical properties, and short service life, the present invention provides a bio-based environmental protection packaging bag, which is characterized in that it contains the following components in parts by weight: 20-40 parts of corn starch, 50-70 parts of PBAT, 10-20 parts of PLA, 5-10 parts of glycerin, 0.1-1 parts of maleic anhydride, 1-5 parts of ethylene-vinyl acetate copolymer, 0.1-1 parts of anti-blocking agent, 1-3 parts of antibacterial agent, 1-3 parts of talcum powder, 1-3 parts of calcium carbonate, 0.1-1 part of chain extender

Method used

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  • A kind of bio-based environmental protection packaging bag and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A bio-based environmental protection packaging bag provided in Example 1 of the present invention includes the following components by weight: 25 parts of corn starch, 55 parts of PBAT, 15 parts of PLA, 5 parts of glycerol, and 0.3 parts of maleic anhydride , 2 parts of ethylene-vinyl acetate copolymer, 0.2 part of oleic acid amide, 1 part of talc, 1 part of calcium carbonate, 0.2 part of ADR-43700, and 1 part of zinc oxide.

[0029] Among them: corn starch, PBAT and PLA are used as raw materials. The addition of corn starch reduces the consumption of petroleum-based resources, reduces the amount of materials from the source, and reduces the cost; maleic anhydride is a corn starch modifier, which can improve the efficiency of corn starch and The compatibility of PBAT and PLA improves the degradation performance of the packaging bag of the present invention. After use, the packaging bag can be composted under specific conditions, which can be completely degraded by microo...

Embodiment 2

[0031] A bio-based environmental protection packaging bag provided in Example 2 of the present invention includes the following components by weight: 25 parts of corn starch, 60 parts of PBAT, 15 parts of PLA, 5 parts of glycerol, and 0.2 parts of maleic anhydride , 2 parts of ethylene-vinyl acetate copolymer, 0.3 parts of oleic acid amide, 1 part of talc, 1 part of calcium carbonate, 0.2 parts of ADR-43700, and 1 part of zinc oxide.

[0032] Among them: corn starch, PBAT and PLA are used as raw materials. The addition of corn starch reduces the consumption of petroleum-based resources, reduces the amount of materials from the source, and reduces the cost; maleic anhydride is a corn starch modifier, which can improve the efficiency of corn starch and The compatibility of PBAT and PLA improves the degradation performance of the packaging bag of the present invention. After use, the packaging bag can be composted under specific conditions, which can be completely degraded by micr...

Embodiment 3

[0034] A bio-based environmental protection packaging bag provided in Example 3 of the present invention includes the following components by weight: 30 parts of corn starch, 50 parts of PBAT, 10 parts of PLA, 10 parts of glycerol, and 0.2 parts of maleic anhydride , 3 parts of ethylene-vinyl acetate copolymer, 0.2 parts of oleic acid amide, 2 parts of talc, 1 part of calcium carbonate, 0.2 parts of ADR-43700, and 2 parts of zinc oxide.

[0035]Among them: corn starch, PBAT and PLA are used as raw materials. The addition of corn starch reduces the consumption of petroleum-based resources, reduces the amount of materials from the source, and reduces the cost; maleic anhydride is a corn starch modifier, which can improve the efficiency of corn starch and The compatibility of PBAT and PLA improves the degradation performance of the packaging bag of the present invention. After use, the packaging bag can be composted under specific conditions, which can be completely degraded by mi...

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Abstract

The invention provides a bio-based environmental protection packaging bag and a preparation method thereof. The packaging bag comprises the following components by weight: 20-40 parts of corn starch, 50-70 parts of PBAT, 10-20 parts of PLA, 5-10 parts of glycerin, 0.1-1 part of lylic anhydride, 1-5 parts of ethylene-vinyl acetate copolymer, 0.1-1 part of opening agent, 1-3 parts of antibacterial agent, 1-3 parts of talc, 1-3 parts of calcium carbonate, chain extender 0.1-1 part; the preparation method is: raw material pretreatment-raw material mixing-extrusion granulation-pellet mixing-extrusion blown film-winding to make a packaging bag; the bio-based environmental protection packaging bag of the present invention is made of starch, PBAT PLA is used as the raw material, which improves the degradation performance of the present invention, is green and environmentally friendly, reduces the cost, and reduces the consumption of petroleum-based resources; and improves the antibacterial and mildew-proof performance of the packaging bag, ensures the safety of food, and the strength when used. Large, water-resistant, oil-resistant, and durable; it is blown into a packaging bag by a film blowing machine, with controllable specifications and a wide range of applications. It is also conducive to large-scale industrial production and easy to promote.

Description

technical field [0001] The invention relates to the technical field of biological packaging materials, in particular to a biological-based environmental protection packaging bag and a preparation method thereof. Background technique [0002] There are many kinds of food packaging materials allowed in my country, among which plastics are widely used in the field of food packaging due to their strong plasticity, low production cost and light quality. However, the large-scale application of plastics has resulted in 60 million tons of packaging waste every year in the world, of which my country's annual plastic packaging waste is about 2.8 million tons. The use of plastic food packaging materials not only wastes my country's precious oil resources, but also brings great pressure to environmental protection. In order to comply with the world's trend of environmental protection, vigorously promoting safe and non-toxic bio-based food packaging materials has become the future devel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L3/02C08L67/04C08L23/08C08K13/02C08K3/34C08K3/26C08K5/20C08K3/32C08K3/22C08J5/18B65D65/46
CPCC08J5/18B65D65/466C08J2367/02C08J2403/02C08J2467/04C08J2423/08C08K13/02C08K3/34C08K2003/265C08K5/20C08K3/32C08K2003/2296C08K2003/2248Y02W90/10
Inventor 支朝晖蒋丹焦青伟
Owner 常州龙骏天纯环保科技有限公司
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