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Preparation method of high-bearing low-temperature insensitive slow-rebound sponge

A slow-rebound sponge and high-load-bearing technology, which is applied in the field of preparation of high-load-bearing low-temperature insensitive slow-rebound sponge, can solve the problems of hard hand feeling and poor load-bearing performance of the sponge, and achieve soft hand feeling, excellent bearing capacity and reduced cost Effect

Active Publication Date: 2022-02-01
江苏钟山新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The slow rebound sponge in the prior art generally has the problem of poor load-bearing performance and the sponge feels hard under low temperature conditions.

Method used

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  • Preparation method of high-bearing low-temperature insensitive slow-rebound sponge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Polyether polyol A: polyether polyol ZS-350G (purchased from Jiangsu Zhongshan New Material Co., Ltd.), polyoxypropylene oxide polyether triol, hydroxyl value: 30 (mgKOH / g), f( functionality)=3. Polyether polyol B: polyether polyol ZS-3160 (purchased from Jiangsu Zhongshan New Material Co., Ltd.), polyoxypropylene oxide polyether triol, hydroxyl value: 160 (mgKOH / g), f( functionality)=3. Polyether polyol C: polyether polyol C is ZS-8180 (purchased from Jiangsu Zhongshan New Material Co., Ltd.), polyoxypropylene oxide polyether tetraol, hydroxyl value: 180 (mgKOH / g), f = 4 (functionality). Polymer polyol D: Polymer polyol POP-720 (purchased from Jiangsu Zhongshan New Material Co., Ltd.), polyoxypropylene oxide polymer trihydric alcohol, hydroxyl value: 190 (mgKOH / g), solid content is 20%, f=3 (functionality).

[0018] A33 (commercially available) is a 33% triethylenediamine solution and is a tertiary amine catalyst. T12 (commercially available) is dibutyltin dilaura...

Embodiment 2

[0022] Add 45g polyether polyol A, 10g polyether polyol B, 40g polyether polyol C and 5g polyether polyol D into a 1L beaker, then add A33 (tertiary amine catalyst) 0.4g, T12 (organometallic Catalyst) 0.15g, LR-1085 (organic silicone oil) 0.35g and deionized water 3.5g, stirred for 30s and mixed evenly to obtain white material. Wherein polyether polyol A, polyether polyol B, polyether polyol C and polyether polyol D are the same as in Example 1.

[0023] Free foaming: Pour 40g of TDI (toluene diisocyanate) into the mixed white material, stir for 10 seconds under the mixer at a speed of 4000-5000r / min, pour the foamed liquid into the mold and fully foam until completely After aging (it takes 24 hours from foaming to full aging), it is cut to obtain a high-load low-temperature insensitive slow-rebound sponge. The rebound time of this high-load low-temperature insensitive slow-rebound sponge is about 5s, and it does not feel hard at a low temperature of -10°C to 10°C, that is, i...

Embodiment 3

[0025] Add 40g polyether polyol A, 10g polyether polyol B, 40g polyether polyol C and 10g polymer polyol D into a 1L beaker, then add A33 (tertiary amine catalyst) 0.3g, T12 (organometallic Catalyst) 0.1g, LR-1085 (organic silicone oil) 0.5g, deionized water 4g, stir for 30s and mix evenly to get white material. Wherein polyether polyol A, polyether polyol B, polyether polyol C and polyether polyol D are the same as in Example 1.

[0026] Free foaming: Pour 45g of TDI (toluene diisocyanate) into the mixed white material, stir for 10 seconds under the mixer at a speed of 4000-5000r / min, pour the foamed liquid into the mold and fully foam until completely After aging (it takes 24 hours from foaming to full aging), it is cut to obtain a high-load low-temperature insensitive slow-rebound sponge. The rebound time of this high-load low-temperature insensitive slow-rebound sponge is about 5s, and it does not feel hard at a low temperature of -10°C to 10°C, that is, it is not sensiti...

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Abstract

The invention provides a preparation method of high-bearing low-temperature insensitive slow-rebound sponge, and belongs to the field of organic synthesis. The preparation method comprises the following steps: mixing polyether polyol A, polyether polyol B, polyether polyol C and polymer polyol D, adding a tertiary amine catalyst, an organic metal catalyst, organic silicone oil and water, and stirring to obtain a white material; pouring toluene diisocynate into the white material, stirring, foaming and curing to obtain the high-bearing low-temperature insensitive slow-rebound sponge. The hydroxyl value of the polyether polyol A is 25-40, and the functionality of the polyether polyol A is 2-4; the hydroxyl value of the polyether polyol B is 160 to 200, and the functionality of the polyether polyol B is 3 to 4.5; the hydroxyl value of the polyether polyol C is 140 to 180, and the functionality of the polyether polyol C is 2 to 4; and the hydroxyl value of the polymer polyol D is 170-200, and the functionality of the polymer polyol D is 2-4. The sponge prepared by the method disclosed by the invention has better bearing performance, and the hand feeling is not hardened under a low-temperature condition, namely, the sponge is insensitive to low temperature.

Description

technical field [0001] The invention relates to a preparation method of a high-load low-temperature insensitive slow-rebound sponge. Background technique [0002] Slow-rebound sponge is also called inert sponge, memory foam, low-rebound sponge, slow-rebound cotton, and zero-pressure sponge. Due to the unique pressure relief characteristics of slow-rebound sponge, slow-rebound pillows and mattresses can keep the body in a natural Get rest in a stress-free position. The slow-rebound sponge in the prior art generally has the problem of poor load-bearing performance, and the sponge feels hard under low temperature conditions. Contents of the invention [0003] The purpose of the present invention is to provide a preparation method of a high-load-bearing low-temperature insensitive slow-rebound sponge. The sponge prepared by the method has good load-bearing performance and does not feel hard under low temperature conditions, that is, it is not sensitive to low temperature. ...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08G101/00
CPCC08G18/4837C08G18/4816C08G2101/00C08G2110/0083C08G2110/005
Inventor 张丽君宗红亮陆逸峰李月文吴亚清俞绿绿
Owner 江苏钟山新材料有限公司
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