Full-open-cell high-breathable sponge and preparation method

A technology with high air permeability and full opening, applied in the sponge field, can solve the problems of poor air permeability and open pores of the sponge, and achieve the effect of high opening rate and good air permeability

Inactive Publication Date: 2019-07-16
东莞市腾崴塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a fully-opened highly air-permeable sponge and a preparation method fo...

Method used

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  • Full-open-cell high-breathable sponge and preparation method
  • Full-open-cell high-breathable sponge and preparation method

Examples

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Embodiment 1

[0021] A fully open-pore highly air-permeable sponge, which is produced by reacting raw materials consisting of the following components in parts by weight: 70 parts of hydrophilic open-cell polyether, 20 parts of POP polymer polyol, and 10 parts of slow-rebound polyether , 1 part of open-pore silicone oil, 0.2 parts of amine catalyst, 0.12 parts of tin catalyst, 34.8 parts of isocyanate TDI80 and polymeric MDI mixture, 3.2 parts of water; among them, the original density of the raw material is 30kg / m 3 , the foaming index of sponge is 0.84; Described hydrophilic polyether is the polypropylene glycol PPG5000 that takes glycerol as initiator, and the ethylene oxide that is 75% and the propylene oxide that content is 25% random polymerization reaction , the hydroxyl value of the hydrophilic polyether is 35mgKOH / g; the POP polymer polyol is a polyether polyol with high solid content graft-copolymerized by general-purpose polyether, styrene monomer and acrylonitrile monomer, and th...

Embodiment 2

[0027] A fully open-pore highly air-permeable sponge, which is produced by reacting raw materials consisting of the following components in parts by weight: 80 parts of hydrophilic open-cell polyether, 10 parts of POP polymer polyol, and 10 parts of slow-rebound polyether , 1 part of open-pore silicone oil, 0.2 parts of amine catalyst, 0.09 part of tin catalyst, 25.8 parts of isocyanate TDI80 and polymeric MDI mixture, 2 parts of water; among them, the original density of the raw material is 48kg / m 3, the foaming index of sponge is 0.88; Described hydrophilic polyether is the polypropylene glycol PPG5000 that takes glycerol as initiator, and the ethylene oxide that is 70% and the propylene oxide that content is 30% random polymerization reaction , the hydroxyl value of the hydrophilic polyether is 35mgKOH / g; the POP polymer polyol is a polyether polyol with high solid content graft-copolymerized by general-purpose polyether, styrene monomer and acrylonitrile monomer, and the T...

Embodiment 3

[0030] A fully open-pore highly air-permeable sponge, which is produced by reacting raw materials consisting of the following components in parts by weight: 70 parts of hydrophilic open-cell polyether, 20 parts of POP polymer polyol, and 10 parts of slow-rebound polyether , 1 part of open-pore silicone oil, 0.2 parts of amine catalyst, 0.05 part of tin catalyst, 34.6 parts of isocyanate TDI80 and polymeric MDI mixture, 2.6 parts of water; among them, the original density of the raw material is 36kg / m 3 , the foaming index of sponge is 0.98; Described hydrophilic polyether is the polypropylene glycol PPG5000 that takes glycerol as initiator, and the ethylene oxide that is 75% and the propylene oxide that content is 25% random polymerization reaction , the hydroxyl value of the hydrophilic polyether is 35mgKOH / g; the POP polymer polyol is a polyether polyol with high solid content graft-copolymerized by general-purpose polyether, styrene monomer and acrylonitrile monomer, and the...

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Abstract

The invention discloses a full-open-cell and high-breathable sponge and a preparation method. The sponge is formed by the reaction of raw materials composed of the following components in parts by weight: 70-80 parts of hydrophilic open-cell polyether, 10-20 parts of POP polymer polyol, 10-20 parts of slow rebound polyether, 0.6-1.6 parts of open-cell silicone oil, 0.1-0.3 part of an amine catalyst, 0.05-0.15 part of a tin catalyst, 25.8-34.8 parts of a mixture of isocyanate TDI80 and polymerized MDI, and 2-3.2 parts of a foaming agent. The original density of the raw materials is 30-48 kg/m<3>, and the foaming index of the sponge is 0.84-0.98; and the hydrophilic open-cell polyether is polypropylene glycol PPG5000, the POP polymer polyol is POP2045, the slow rebound polyether is polypropylene glycol diacrylate PPG700, the foaming agent is water, the amine catalyst is A33, and the tin catalyst is tin catalyst T-9. The sponge has full open cells and excellent air permeability.

Description

technical field [0001] The invention relates to the technical field of sponges, in particular to a fully-opened highly air-permeable sponge and a preparation method thereof. Background technique [0002] Sponge is very common in daily life applications, for example, there are a lot of sponges in sofas, chairs, mattresses and shoes. Because it gives people a soft and comfortable experience, it is widely used in different fields. Commonly used sponges are made from wood cellulose fibers or expanded plastic polymers. In addition, there are natural sponges made of sponge animals, and three types of synthetic sponges made of other materials, namely low-density polyether (non-absorbent sponge), polyvinyl alcohol (highly absorbent material, no obvious pores) and polyester sponge. In the prior art, the sponges in mattresses and pillows often use soft sponges as fillings, but the existing deficiencies of the sponges used for filling are: one, the partial openings or partial openin...

Claims

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Application Information

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IPC IPC(8): C08G18/63C08G18/48C08G101/00
CPCC08G18/4804C08G18/4845C08G18/632C08G2110/0083
Inventor 丁向前
Owner 东莞市腾崴塑胶制品有限公司
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