Washable slow-rebound polyurethane foam, and production method and application thereof

A technology of polyurethane foam and slow rebound, which is applied in the field of polyurethane foam, which can solve the problems of long-term non-drying, peculiar smell, long mites, etc., and achieve the effects of slow rebound speed, resource saving and good air permeability

Inactive Publication Date: 2017-12-19
广州昆德日用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When used as household sponges such as PU polyurethane slow-rebound pillows, mattresses and cushions, when they become dirty, have mites or have peculiar smells after use, there will be waste problems caused by long-term washing and dehydration or one-time use.

Method used

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  • Washable slow-rebound polyurethane foam, and production method and application thereof

Examples

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preparation example Construction

[0033] A preparation method of washable slow rebound polyurethane foam, comprising:

[0034] Material preparation step: take each raw material according to the formula ratio, and set aside;

[0035] Reaction steps: put the polyether polyol, isocyanate, stabilizer and catalyst in the formula amount into a reaction container for reaction, reaction conditions: normal temperature, normal pressure, high-speed stirring and mixing; obtain polyurethane foam material;

[0036] The basic chemical reaction formula is as formula 1:

[0037] R'-OH+R-NCO→R'-NCO-R Formula 1;

[0038] Wherein, R'-OH: polyether polyol; R-NCO: isocyanate; R'-NCO-R: polyurethane;

[0039] The step of removing the film and opening the pores: put the polyurethane foam material into a safe and airtight container filled with combustible gas. After igniting the combustible gas, it will generate an instant high temperature and explode, so as to remove the film and open the pores of the polyurethane foam material; ge...

Embodiment 1

[0044] A washable slow rebound polyurethane foam, prepared from the following raw materials: polyether polyol, isocyanate, stabilizer and catalyst, the weight ratio of polyether polyol, isocyanate, stabilizer and catalyst is 100:46 : 0.3: 0.3, wherein the catalyst comprises triethylenediamine (A33) and stannous octoate (T-9), and the weight ratio of triethylenediamine (A33) and stannous octoate (T-9) is 0.2: 0.1.

[0045] A preparation method of washable slow rebound polyurethane foam, comprising:

[0046] Material preparation step: take each raw material according to the formula ratio, and set aside;

[0047] Reaction steps: put the polyether polyol, isocyanate, stabilizer and catalyst in the formula amount into a reaction container for reaction, reaction conditions: normal temperature, normal pressure, high-speed stirring and mixing; obtain polyurethane foam material;

[0048] The step of removing the film and opening the pores: put the polyurethane foam material into a sa...

Embodiment 2

[0050] A washable slow rebound polyurethane foam, prepared from the following raw materials: polyether polyol, isocyanate, stabilizer and catalyst, the weight ratio of polyether polyol, isocyanate, stabilizer and catalyst is 100:43 : 0.4: 0.35, wherein the catalyst comprises triethylenediamine (A33) and stannous octoate (T-9), and the weight ratio of triethylenediamine (A33) and stannous octoate (T-9) is 0.2: 0.15.

[0051] Its preparation method is identical with embodiment 1.

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Abstract

The invention discloses a washable slow-rebound polyurethane foam. The washable slow-rebound polyurethane foam is produced from polyether polyol, isocyanate, a stabilizer and a catalyst according to a weight ratio of 100:(40-50):(0.3-0.8):(0.3-0.5). The invention also discloses a production method and an application of the washable slow-rebound polyurethane foam. The washable slow-rebound polyurethane foam has the characteristics of good air permeability, slow rebounding speed, and realization dehydration quick-drying after being washed.

Description

technical field [0001] The invention relates to a polyurethane foam, in particular to a washable slow-rebound polyurethane foam and its preparation method and application. Background technique [0002] Polyurethane slow rebound foam material, also known as memory foam, space cotton, inert cotton and viscoelastic foam material, is a special polyether added to the synthesis of ordinary soft polyurethane foam, so that the foam slowly deforms after being deformed by external force. Restore the original shape. At present, polyurethane slow rebound foam materials are widely used in bedding (such as pillows, mattresses, etc.) Reducing the rebound speed and low-temperature hardness of polyurethane slow-rebound materials has become the goal of scientific researchers in order to develop products with slow rebound speed and low-temperature hardening. [0003] The polyurethane (PU) slow-rebound foaming material in the prior art has the particularity of incomplete opening and a sense o...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08G101/00
Inventor 王碧忠
Owner 广州昆德日用品有限公司
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