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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 processing, and protective properties However, its waste has many shortcomings such as high pollution, non-degradation, and poor environmental performance. Therefore, there is an urgent need for a cushioning packaging material with similar performance and environmental protection.

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

Embodiment 1

[0027] (1) Weigh 50 kilograms of starch, 30 kilograms of straw, 5 kilograms of talc, 15 kilograms of glycerin, 5 kilograms of urea, 5 kilograms of polyvinyl alcohol, 0.1 kilogram of stearic acid, 1 kilogram of foaming agent AC, and 100 kilograms of water; After drying and crushing, make straw fiber segments with a length of 2 cm and an aspect ratio of about 50, then mix the starch and the treated straw fibers evenly, add glycerin, urea and 80 kg of hot water at 80°C, and stir evenly;

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

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

[0030] (4) Demoulding, taking out the finished product t...

Embodiment 2

[0032] (1) Weigh 60 kg of starch, 20 kg of corn stalks, 10 kg of talcum powder, 10 kg of formamide, 10 kg of urea, 1 kg of polyvinyl alcohol, 1 kg of stearic acid, 0.1 kg of sodium bicarbonate, and 120 kg of water; After drying and crushing the corn stalks, cut them into 4cm-long corn stalk fiber segments with an aspect ratio of about 60, then mix the starch and the treated corn stalk fibers evenly, add formamide, urea and 100 kg of 80°C heat water, stir well;

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

[0034] (3) Add the homogeneous slurry prepared in step (2) into the mold, set the temperature of the upper mold to 185°C, the temperature of the lower mold to 200°C, and the pressure to 2Mpa, hold the pressure for 40s after closing the mold, and hold the pressure for 60s ;

[0035] (4) Demoulding, taking out the finished product to obtain the finished...

Embodiment 3

[0037] (1) Weigh 55 kg of starch, 25 kg of wheat straw, 8 kg of talcum powder, 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 to make a wheat straw fiber section with a length of 3 cm and an aspect ratio of about 40, then the starch and the treated wheat straw fiber are mixed evenly, and glycerin, ethylene glycol and 120 kilograms of 80 ℃ hot water, stir evenly;

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

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

[0040] (4) Demoulding, taking out the finished pro...

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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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