Full-degradation cushion packaging material and preparing method thereof

A buffer packaging and fully degradable technology, applied in the field of fully degradable buffer packaging materials and their preparation, can solve the problems of high waste pollution, non-degradation, poor environmental protection performance, etc., and achieve the effects of reliable degradation, sufficient sources and good strength

Inactive Publication Date: 2014-07-16
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the existing cushioning packaging materials on the market mainly include expanded polystyrene (EPS), expanded polyethylene (EPE), corrugated cardboard, honeycomb cardboard, etc. Although the above cushioning packaging materials have light weight, easy proce

Method used

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  • Full-degradation cushion packaging material and preparing method thereof
  • Full-degradation cushion packaging material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1:

[0027] (1) Weigh 50 kg of starch, 30 kg of straw, 5 kg of talc, 15 kg of glycerin, 5 kg of urea, 5 kg of polyvinyl alcohol, 0.1 kg of stearic acid, 1 kg of foaming agent AC, and 100 kg of water; After drying and pulverizing, a straw fiber section with a length of 2 cm is made with an aspect ratio of about 50. Then the starch and the treated straw fiber are mixed uniformly, and glycerin, urea and 80 kg of hot water at 80°C are added, and the mixture is evenly stirred;

[0028] (2) Add talc, polyvinyl alcohol, stearic acid, foaming agent AC and 20 kilograms of water, stir evenly at 80°C to obtain a homogeneous slurry;

[0029] (3) Add the homogeneous slurry obtained in step (2) into the mold, set the upper mold temperature to 180°C, the lower mold temperature to 195°C, and the pressure to 3Mpa. After closing the mold, hold the pressure for 30s, and hold and dry for 45s. ;

[0030] (4) Demould and take out the product to obtain the finished product.

Example Embodiment

[0031] Example 2:

[0032] (1) Weigh 60 kg starch, 20 kg corn stover, 10 kg talc, 10 kg formamide, 10 kg urea, 1 kg polyvinyl alcohol, 1 kg stearic acid, 0.1 kg sodium bicarbonate, and 120 kg water; The corn stalks are dried and crushed, and cut into corn stalk fiber sections with a length of 4 cm and a length-to-diameter ratio of about 60. Then, the starch and the processed corn stalk fibers are mixed uniformly, and formamide, urea and 100 kg of 80℃ heat are added. Water, stir well;

[0033] (2) Add talc, polyvinyl alcohol, stearic acid, sodium bicarbonate and 20 kg of water, and stir evenly at 80°C to obtain a homogeneous slurry;

[0034] (3) Add the homogeneous slurry obtained in step (2) into the mold, set the upper mold temperature to 185°C, the lower mold temperature to 200°C, and the pressure to 2Mpa. After closing the mold, the pressure is maintained for 40s, and the pressure is maintained for drying for 60s. ;

[0035] (4) Demould and take out the product to obtain the fini...

Example Embodiment

[0036] Example 3:

[0037] (1) Weigh 55 kg of starch, 25 kg of wheat straw, 8 kg of talc, 12 kg of glycerin, 7 kg of ethylene glycol, 3 kg of polyvinyl alcohol, 0.5 kg of stearic acid, 0.5 kg of ammonium bicarbonate, and 140 kg of water ; The wheat straw is dried and pulverized into a wheat straw fiber section with a length of 3cm, with an aspect ratio of about 40, and then the starch and the processed wheat straw fiber are mixed uniformly, and glycerin, ethylene glycol and 120 kg 80 are added. ℃ hot water, stir evenly;

[0038] (2) Add talc, polyvinyl alcohol, stearic acid, ammonium bicarbonate and water, and stir evenly at 80°C to prepare a homogeneous slurry;

[0039] (3) Add the homogeneous slurry obtained in step (2) to the mold, set the upper mold temperature to 175°C, the lower mold temperature to 190°C, and the pressure to 3Mpa. After closing the mold, hold the pressure for 30s, and dry for 30s. ;

[0040] (4) Demould and take out the product to obtain the finished product. ...

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Abstract

The invention discloses a full-degradation cushion packaging material which is prepared from, by weight, 50 parts to 60 parts of starch, 20 parts to 30 parts of plant fibers, 5 parts to 10 parts of packing, 10 parts of 15 parts of starch plasticizer A, 5 parts to 10 parts of starch plasticizer B, 1 part to 5 parts of adhesive, 0.1 part to 1 part of release agent, 0.1 part to 1 part of foaming agent, and 100 parts to 120 parts of water, wherein the plant fibers are straw fibers or bagasse fibers, the packing is talcum powder, the starch plasticizer A is glycerinum or formamide, the starch plasticizer B is urea or ethanediol, the adhesive is polyvinyl alcohol, and the release agent is stearic acid. The invention further discloses a preparing method of the cushion packaging material which is a foaming hot-press forming method. The full-degradation cushion packaging material prepared with the method has the advantages that the raw materials are reproducible, the production process is free of pollution, and production cost is low.

Description

technical field [0001] The invention relates to a fully degradable cushioning packaging material and a preparation method thereof, belonging to the field of new green and environment-friendly applied materials. Background technique [0002] At present, the existing cushioning packaging materials on the market mainly include expanded polystyrene (EPS), expanded polyethylene (EPE), corrugated cardboard, honeycomb cardboard, etc. Although the above cushioning packaging materials have light weight, easy processing, and protective properties However, its waste has many shortcomings such as high pollution, non-degradation, and poor environmental protection performance. Therefore, there is an urgent need for a cushioning packaging material with similar performance and green environmental protection. Contents of the invention [0003] In view of the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a fully degradable cushioning packa...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08L97/02C08K3/34C08J9/10C08J9/08
Inventor 李方义王成钊刘鹏管凯凯李刚郭安福
Owner SHANDONG UNIV
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