Production method of polyurethane flame-retardant highly-resilient foam

A production method and high-resilience technology, applied in the field of materials, can solve the problems of unsatisfactory high-resilience performance of foam and lack of flame retardancy, and achieve the effects of wide application range, easy access, and avoiding UV aging

Inactive Publication Date: 2014-07-16
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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  • Production method of polyurethane flame-retardant highly-resilient foam
  • Production method of polyurethane flame-retardant highly-resilient foam
  • Production method of polyurethane flame-retardant highly-resilient foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The polyurethane flame-retardant rebound foam in the present embodiment is made of following components:

[0018]

[0019] 37.8 grams of PVC plastic rubber aggregate with a particle size of 8mm

[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...

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] 8.9 grams of PVC plastic rubber aggregate with a particle size of 12mm

[0030] The polyurethane flame-retardant rebound foam in the present embodiment comprises the following steps during preparation:

[0031] The polyurethane flame-retardant rebound foam in the present embodiment comprises the following steps during preparation:

[0032] 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 thr...

Embodiment 3

[0036] 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:

[0037]

[0038]

[0039] 25 grams of PVC plastic rubber aggregate with a particle size of 10mm

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Abstract

The invention relates to a production method of polyurethane flame-retardant highly-resilient foam. The polyurethane flame-retardant highly-resilient foam prepared by the method has better resilient mechanical properties, is even in gas holes. Rolling experiments prove that the polyurethane flame-retardant highly-resilient foam prepared by the method has a longer service life and a faster resilient speed compared with traditional resilient foam. The polyurethane flame-retardant highly-resilient foam prepared by the method also includes 6-12 parts of nano silica powder to make up for the defectthat the traditional resilient foam has no ultraviolet (UV) ray absorption component. When the polyurethane flame-retardant highly-resilient foam is used outdoors, the rapid UV aging can be avoided; the protective sleeve cost is also saved, and the use range of the polyurethane flame-retardant highly-resilient foam is more wide.

Description

technical field [0001] The invention relates to a production method of 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 foamin...

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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