Starch-based foam cushioning material and packaging material

A cushioning material, starch-based technology, applied in the field of foaming materials, to achieve the effects of small cushioning coefficient, high platform stress, and excellent cushioning and energy-absorbing functions

Active Publication Date: 2021-04-06
ZHEJIANG GREAT SHENGDA PACKING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current foam materials only have the function of buffering and absorbing energy, and the failure of electronic components, instruments and meters is not only caused by vibration and impact, but also related to the humidity of the environment.

Method used

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  • Starch-based foam cushioning material and packaging material
  • Starch-based foam cushioning material and packaging material
  • Starch-based foam cushioning material and packaging material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1) Prepare the first composite humidity control material, namely acrylic acid-sodium acrylate-acrylamide solution:

[0040]Use 12g of water to prepare 6.8g of NaOH into a solution. Under a cold water bath and electromagnetic stirring, use a dropper to slowly add the prepared NaOH solution to 13.5g of acrylic acid (AA), and then follow (acrylic acid + sodium acrylate): Acrylamide (AM)=32.3g:9.6g mass ratio Weigh a certain amount of acrylamide and add it to the above-mentioned acrylic acid (sodium) solution, and keep stirring until AM is completely dissolved. Wherein, acrylic acid+sodium acrylate refers to a mixed solution obtained by dropping NaOH solution.

[0041] 2) Prepare the second composite humidity-conditioning material, that is, the starch-based composite humidity-conditioning material:

[0042] Weigh 6g of cornstarch, add it to the above mixed solution, stir and mix evenly, and gelatinize for 40min in a water bath with a temperature of 68°C and a speed of 410r...

Embodiment 2

[0046] 1) Prepare the first composite humidity control material, namely acrylic acid-sodium acrylate-acrylamide solution:

[0047] Use 9.2g of water to prepare 4.4g of NaOH into a solution. Under cold water bath and electromagnetic stirring, slowly drop the prepared NaOH solution into 11.6g of acrylic acid (AA) with a dropper. : Mass ratio of acrylamide (AM)=25.2g:4.8g Weigh quantitative acrylamide and add it into the above-mentioned acrylic acid (sodium) solution, and keep stirring until AM is completely dissolved. Wherein, acrylic acid+sodium acrylate refers to a mixed solution obtained by dropping NaOH solution.

[0048] 2) Prepare the second composite humidity-conditioning material, that is, the starch-based composite humidity-conditioning material:

[0049] Weigh 2.4g of cornstarch, add it to the above mixed solution, stir and mix evenly, gelatinize in a water bath with a temperature of 62°C and a speed of 490r / min for 26min; after taking it out to room temperature, add ...

Embodiment 3

[0053] 1) Prepare the first composite humidity control material, namely acrylic acid-sodium acrylate-acrylamide solution:

[0054] Use 11.2g of water to prepare 6g of NaOH into a solution. Under a cold water bath and electromagnetic stirring, use a dropper to slowly drop the prepared NaOH solution into 12.8g of acrylic acid (AA), and then follow (acrylic acid + sodium acrylate): Acrylamide (AM)=30g:8g mass ratio Weigh a certain amount of acrylamide and add it to the above-mentioned acrylic acid (sodium) solution, and keep stirring until AM is completely dissolved. Wherein, acrylic acid+sodium acrylate refers to a mixed solution obtained by dropping NaOH solution.

[0055] 2) Prepare the second composite humidity-conditioning material, that is, the starch-based composite humidity-conditioning material:

[0056] Weigh 4.5g of corn starch, add it to the above mixed solution, stir and mix evenly, gelatinize in a water bath with a temperature of 66°C and a speed of 460r / min for 28...

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Abstract

The invention relates to the technical field of foaming materials, in particular to a starch-based foaming buffer material and a packaging material. The starch-based foaming buffer material is mainly prepared from the following raw materials in parts by weight: 11-17 parts of inorganic strong base, acrylic acid 29-34 parts, 12-24 parts of acrylamide, 6-15 parts of starch, 0.4-0.6 parts of initiator, 0.4-0.6 parts of plasticizer and 0.4-0.6 parts of cross-linking agent. The packaging material is prepared from the above-mentioned starch-based foaming buffer material. The starch-based foaming buffer material is prepared by using low-cost starch with a wide range of sources as a raw material and polymerizing it with a superabsorbent resin. The material can effectively adjust the humidity in a confined space and has good moisture absorption / release performance. At the same time, the starch-based foaming buffer material has a higher platform stress and a smaller buffer coefficient, and has excellent buffering and energy-absorbing functions.

Description

technical field [0001] The invention relates to the technical field of foam materials, in particular to a starch-based foam buffer material and packaging material. Background technique [0002] With the improvement of people's living standards, the development of the logistics industry is also getting faster and faster, and the products are often damaged due to mechanical loads such as vibration and impact during the circulation process, so it is necessary to adopt cushioning packaging technical measures for protection . The key to cushioning protection is to choose the appropriate cushioning packaging material. The so-called cushioning packaging material refers to a protective material that can absorb a large amount of impact energy and prevent products from being damaged by vibration and impact. There are many types of cushioning packaging materials, and foaming materials are the most widely used type with excellent comprehensive performance. Because of its good cushion...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/02C08K5/053C08J9/00C08F251/00C08F220/06C08F220/56
CPCC08F251/00C08J9/0023C08J2351/02C08F220/06C08F220/56
Inventor 鄂玉萍孙俊军黄煜琪卓丽菊王召霞王家俊石义伟
Owner ZHEJIANG GREAT SHENGDA PACKING CO LTD
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