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Polyurethane flame-retardant resilient foam

A polyurethane and foam technology, applied in the field of materials, can solve the problems of unsatisfactory high resilience performance of foam and lack of flame retardant ability, and achieve the effect of wide range of use, easy access, and fast rebound speed.

Inactive Publication Date: 2014-08-20
滨海三甬药业化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, high-resilience foams have been widely used, but general high-resilience foams do not have flame retardancy, and the high-resilience properties of flame-retardant foams are not ideal.

Method used

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  • Polyurethane flame-retardant resilient foam
  • Polyurethane flame-retardant resilient foam
  • Polyurethane flame-retardant resilient foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The polyurethane flame-retardant rebound foam in the present embodiment is made of following components:

[0019]

[0020] Wherein the acrylic acid is used as a crosslinking agent, the dibutyltin dilaurate is used as a tin catalyst, the diethanolamine is used as an amine catalyst, and the dimethylsiloxane is used as a foam stabilizer.

[0021] The polyurethane flame-retardant rebound foam in the present embodiment comprises the following steps during preparation:

[0022] 1) The PVC block material is crushed by wind selection centrifugal classifier, and the crushed material enters the rotary sieve, that is, the grading screen under the action of the fan, and the PVC rubber aggregate with a particle size of 8mm is acted on by the brush and the screen. Pass through the screen and collect through the fine material port.

[0023] 2), weigh 30 grams of polyester polyol, 13 grams of polyether polyol, 0.3 grams of toluene diisocyanate, 0.6 grams of polymethylene polyphenyl...

Embodiment 2

[0026] The difference between the polyurethane flame-retardant rebound foam in this embodiment and the polyurethane flame-retardant rebound foam in Example 1 lies in the change of the content of the components. The polyurethane flame-retardant rebound foam in this embodiment is composed of:

[0027]

[0028]

[0029] The polyurethane flame-retardant rebound foam in the present embodiment comprises the following steps during preparation:

[0030] 1), weigh phenyl o-hydroxybenzoate ultraviolet absorber, fatty alcohol polyoxyethylene ether, acrylic acid, dyeing agent, absolute ethanol, put into the container successively for use;

[0031] 2), after mixing the weighed phenyl o-hydroxybenzoate ultraviolet absorber, fatty alcohol polyoxyethylene ether, acrylic acid, dyeing agent, and absolute ethanol, stir for 70 minutes, and the ambient temperature during stirring is 30°C;

[0032] 3), at room temperature, send the above-mentioned suspension into a high-shear disperser to dis...

Embodiment 3

[0035] The difference between the polyurethane flame-retardant rebound foam in this embodiment and the polyurethane flame-retardant rebound foam in Example 1 lies in the change of the content of the components. The polyurethane flame-retardant rebound foam in this embodiment is composed of:

[0036]

[0037]

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Abstract

The invention relates to polyurethane flame-retardant resilient foam. The polyurethane flame-retardant resilient foam has good resilience mechanical properties. The polyurethane flame-retardant resilient foam has uniform pores. A rolling experiment proves that compared with the traditional resilient foam, the polyurethane flame-retardant resilient foam has a longer service life and a faster rebound rate. The polyurethane flame-retardant resilient foam comprises 6-12 parts of silica nanopowder and overcomes the defect of no ultraviolet absorption component in the traditional resilient foam. When being used outside, the polyurethane flame-retardant resilient foam is not fast aged under UV. The polyurethane flame-retardant resilient foam saves a protective sleeve cost and widens a resilient foam application range.

Description

technical field [0001] The invention relates to a polyurethane flame-retardant rebound foam, which belongs to the field of materials. Background technique [0002] Polyurethane foam is an important synthetic material, which has the characteristics of porosity, low relative density and high specific strength. According to the different raw materials used and the change of formula, it can be made into ordinary soft foam, high resilience foam and hard foam. Polyurethane foam plastics are chemically reacted by a variety of raw materials in a very short time, and change from liquid to colloid and then to high polymer, during which they undergo complex processes such as foaming and gelation. Therefore, it is necessary to rely on the foam stabilizer to play a regulating role in order to make the foam uniform and stable, and to obtain a foam with uniform cells. Silicone foam stabilizer, as a surfactant, can significantly reduce the surface tension of the foaming system and has been...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F299/06C08G18/76C08G18/67C08G18/48C08G18/42C08G18/24C08G18/18C08K3/36C08K5/523C08L75/06C08L75/08C08L27/06C08G101/00
Inventor 周云富
Owner 滨海三甬药业化学有限公司
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