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A method for opening pores of foamed sponge products

A technology for foaming sponges and products, which is applied in the field of opening pores of foaming sponge products to achieve the effects of good environmental protection, low production cost and high environmental friendliness

Active Publication Date: 2021-06-22
JIANGYIN HAIDA RUBBER & PLASTIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, acetylene is extremely flammable gas used in the drilling process, and it needs to be detonated during the drilling process, which has great environmental protection and safety hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for opening pores of polyurethane sponge products, specifically:

[0029] (1) Test the semi-finished sponge to ensure that its decomposition aging point is higher than the melting point of low melting point salt.

[0030] (2) Weigh the semi-finished sponge first, record the original quality data, and then immerse it in the molten compound salt bath in the state of solid-liquid mixing. The low melting point salt in the compound salt is composed of sodium nitrate and sodium nitrite, and the high melting point salt is composed of chlorine Composed of barium oxide, when the temperature rises to 210°C, the low-melting-point salt is already in liquid state, and the high-melting-point salt is in solid state. Through the circulation of the salt bath, the solid crystalline salt will destroy the parenchyma tissue of the sponge which is already relatively fragile at this temperature, and the short-term The effect of complete opening is achieved within a short period of ti...

Embodiment 2

[0035] A method for opening holes of neoprene sponge products, specifically:

[0036] (1) Test the semi-finished sponge to ensure that its decomposition aging point is higher than the melting point of low melting point salt.

[0037] (2) Weigh the semi-finished sponge first, record the original quality data, and then immerse it in the molten compound salt bath in the state of solid-liquid mixing. The low melting point salt in the compound salt is composed of sodium nitrate and sodium nitrite, and the high melting point salt is composed of chlorine Composed of sodium chloride and sodium sulfate, the temperature is raised to 225 ° C, and through the circulation of the salt bath, the solid crystalline salt destroys the parenchyma of the sponge, and the effect of completely opening the pores is achieved in a short time.

[0038] (3) Take out the foam sponge that has been opened, place it in 30°C water for repeated soaking and rinse with a water gun until the concentration of the s...

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Abstract

The invention relates to a method for opening pores of foamed sponge products. The semi-finished sponge that meets the technical requirements is immersed in a molten compound salt bath in a solid-liquid mixed state, and through the circulation of the salt bath, solid crystallized salt is used to treat the parenchyma of the sponge. Destruction, to achieve the effect of complete opening in a short time; soak the foam sponge that has been opened in warm water repeatedly and rinse it with a water gun, the crystal salt will be dissolved and washed out; the finished product after cleaning is placed in a hot air oven for Dehydration treatment. The cell opening method of the foamed sponge product of the present invention has the advantages of high cell opening rate, low production cost, good safety and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of processing foamed sponge products, and in particular relates to a method for opening pores of foamed sponge products. Background technique [0002] Open-pore sponge is used in a wide range of fields. It is used in automobile air filters and heavy metal adsorption carriers. It can completely solve the problems of dust removal, odor removal, antibacterial, sterilization, catalytic decomposition of harmful gases, efficient dust removal, and electrostatic dust removal in air purification. The products are used in the manufacture of household appliances (refrigerators, air conditioners, vacuum cleaners, air purifiers, heaters, air-conditioning fans, etc.) with or with air conditioning functions and various air purification and environmental protection projects. It can also be used for air exhaust, aquarium filtration, photocatalyst filtration, mechanical filter element, and can also be used as a ceramic moldin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C67/20
CPCB29C67/20
Inventor 沈少杰贡健简鹏高蒙蒙庄澎胡丹高洪娜杨瑞赵晓平胡斌
Owner JIANGYIN HAIDA RUBBER & PLASTIC GROUP
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