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A foaming material with moisture-regulating function

A technology of foaming materials and functions, applied in the field of foaming materials, can solve problems such as precision drop, instrument scrapping, surface corrosion, etc., and achieve the effect of improving the effect of humidity

Active Publication Date: 2018-08-24
GUANGXI SISLAND IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The humidity in the southern part of my country is high, and most instruments and precision instruments are easily affected by humidity during transportation, resulting in problems such as surface corrosion and decreased accuracy, and even make the instruments scrapped
The existing solution is to place a moisture-proof agent or a vapor-phase rust inhibitor in the package, but these measures can only achieve one-way humidity regulation

Method used

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  • A foaming material with moisture-regulating function
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  • A foaming material with moisture-regulating function

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The preparation steps of the method are as follows:

[0024] 1) Preparation of (acrylic acid + sodium acrylate)-acrylamide composite humidity control material;

[0025] 2) Preparation of konjac glucomannan-(acrylic acid+sodium acrylate)-acrylamide composite humidity control material;

[0026] 3) Place the gel-like composite humidity-regulating material in step 2) together with the mold in a microwave oven, and heat it at a power of 70w-210w for 1-3 minutes to make the gel-like composite humidity-conditioning material foam, thereby A foamed material with a humidity control function is obtained.

[0027] The preparation method of the (acrylic acid+sodium acrylate)-acrylamide composite humidity-controlling material: configure a NaOH solution with a concentration of 10%-35%, and drop the prepared 10%-35%NaOH solution under normal temperature and electromagnetic stirring Add 10%-35% acrylic acid, and then add acrylamide in the mass ratio of (acrylic acid + sodium acrylate)...

Embodiment 1

[0030] 1) Preparation of acrylic acid-sodium acrylate-acrylamide solution:

[0031] Prepare a NaOH solution with a concentration of 35%. Under normal temperature and electromagnetic stirring, slowly drop the prepared NaOH solution into 10% acrylic acid (AA) with a dropper. Then, according to (acrylic acid + sodium acrylate): acrylamide (AM) = 4:1 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.

[0032] 2) Preparation of konjac glucomannan-(acrylic acid + sodium acrylate)-acrylamide composite humidity-conditioning material:

[0033] Weigh 0.1g of KGM, add it to the above mixed solution, and stir for 10 minutes to make KGM uniformly mixed in the solution, add 0.05g of N, N-methylenebisacrylamide as a cross-linking agent, and continue stirring for 10 minutes. 0.1 g of Span 60 was added as a dispersant and 0.1 g of potassium persulfate as an initiator.

[0034] 3...

Embodiment 2

[0036] 1) Preparation of acrylic acid-sodium acrylate-acrylamide solution:

[0037] Prepare a NaOH solution with a concentration of 10%. Under normal temperature and electromagnetic stirring, slowly drop the prepared NaOH solution into 35% acrylic acid (AA) with a dropper. Then, according to (acrylic acid + sodium acrylate): acrylamide ( AM) = 4:1 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.

[0038] 2) Preparation of konjac glucomannan-(acrylic acid + sodium acrylate)-acrylamide composite humidity-conditioning material:

[0039] Weigh 0.3g of KGM, add it to the above mixed solution, and stir for 10 minutes to make KGM evenly mixed in the solution, add 0.5g of N, N-methylenebisacrylamide as a cross-linking agent, and continue stirring for 10 minutes. 0.5 g of Span 60 was added as a dispersant and 0.32 g of potassium persulfate as an initiator.

[0040] 3) ...

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PUM

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Abstract

The invention discloses a foam material with a humidity conditioning function.The foam material comprises, by mass, 10%-35% of NaOH, 10%-35% of acrylic acid, 2%-10% of acrylamide, 1%-3% of konjac glucomannan, 0.5%-5% of N,N-methylene bisacrylamide, 1%-4% of span-80, 1%-4% of potassium peroxodisulfate and the balance water.The foam material with the humidity conditioning function has the advantages that just because the foam material cavity inner wall is provided with a round pit structure, the foam material has buffering, humidity absorbing and humidity releasing functions, and spatial humidity in a package can be conditioned into appropriate equilibrium humidity while impact energy transferred to a product is buffered; the prepared foam material with the humidity conditioning function is capable of conditioning internal environment humidity actively and keeping the internal environment humidity about 50%+ / -5%, so that the problem that most precision instruments affect the humidity is solved effectively.

Description

technical field [0001] The invention relates to a foaming material, in particular to a foaming material with the function of regulating humidity. Background technique [0002] Foam materials have excellent cushioning properties and energy absorption properties, and can be used as cushioning packaging materials for various instruments, valuables, precision instruments, electronic components, etc., and are widely used in the packaging field. The humidity in the southern part of my country is high, and most instruments and precision instruments are easily affected by humidity during transportation, resulting in problems such as surface corrosion and decreased accuracy, and even make the instruments scrapped. The existing solution is to place a moisture-proof agent or a vapor-phase rust inhibitor in the package, but these measures can only achieve one-way humidity regulation. The granular or gel-like humidity-regulating materials used in the fields of architecture and museum cu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/00C08F220/06C08F220/56C08J9/02
CPCC08F251/00C08J9/02C08J2351/02C08F220/06C08F220/56
Inventor 余丽萍鄂玉萍王家俊
Owner GUANGXI SISLAND IND CO LTD