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Flame-retardant polyurethane flexible foam and preparation method thereof

A polyurethane soft foam and flame retardant technology, applied in the field of materials, can solve the problems of low smoke generation, inability to maintain high resilience of ordinary polyurethane, poor flame retardancy, etc., and achieve good flame retardancy

Active Publication Date: 2015-06-24
应急管理部四川消防研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Halogen-free flame retardant is a kind of flame retardant that does not contain halogen, and mainly uses phosphorus, silicon, nitrogen and metal hydroxide as flame retardant elements. It has a small amount of smoke when burning, and produces toxic and The advantages of less corrosive gas have been widely studied and applied in recent years, but it also has many excellent properties such as poor flame retardancy and inability to maintain the high resilience of ordinary polyurethane "soft foam".

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Component A (parts by weight): sucrose polyether 80, water 4, bismorpholine diethyl ether 6, ricinoleic acid methyl ammonium sulfate 0.1, butylene glycol 0.1, flame retardant 30;

[0094] The component B (parts by weight): toluene diisocyanate 60, polyoxypropylene glycol 60;

[0095] Flame retardant in component A (parts by weight): formaldehyde (37% aqueous solution) 65, melamine 45, sodium lignosulfonate 25, water-soluble ammonium polyphosphate 17, o-cresyl glycidyl ether 5, water 350;

[0096] The preparation method of the flame retardant is as follows: add formaldehyde into the reaction kettle, adjust the pH value to 8.0 with triethanolamine, add melamine while stirring, raise the temperature to 65°C, and react for 3 hours. When the solution becomes clear and transparent, cool to room temperature. Add water, sodium lignosulfonate, water-soluble ammonium polyphosphate, o-cresyl glycidyl ether, stir evenly, and finally adjust the pH value of the solution system to 7.2...

Embodiment 2

[0101] Component A (parts by weight): sucrose polyether 100, water 6, bismorpholine diethyl ether 5, ricinoleic acid methyl ammonium sulfate 0.3, butylene glycol 0.3, flame retardant 40;

[0102] The component B (parts by weight): 50 toluene diisocyanate, 50 polyoxypropylene diol;

[0103] Flame retardant in component A (parts by weight): formaldehyde (37% aqueous solution) 65, melamine 45, sodium lignosulfonate 25, water-soluble ammonium polyphosphate 17, o-cresyl glycidyl ether 5, water 350;

[0104] The preparation method of the flame retardant is as follows: add formaldehyde into the reaction kettle, adjust the pH value to 8.0 with triethanolamine, add melamine while stirring, raise the temperature to 65°C, and react for 3 hours. When the solution becomes clear and transparent, cool to room temperature. Add water, sodium lignosulfonate, water-soluble ammonium polyphosphate, o-cresyl glycidyl ether, stir evenly, and finally adjust the pH value of the solution system to 7.2 ...

Embodiment 3

[0109] Component A (parts by weight): sucrose polyether 110, water 8, bismorpholine diethyl ether 6, ricinoleic acid methyl ammonium sulfate 0.5, butylene glycol 0.4, flame retardant 50;

[0110] The component B (parts by weight): 40 toluene diisocyanate, 60 polyoxypropylene diol;

[0111] Flame retardant in component A (parts by weight): formaldehyde (37% aqueous solution) 65, melamine 45, sodium lignosulfonate 25, water-soluble ammonium polyphosphate 17, o-cresyl glycidyl ether 5, water 350;

[0112] The preparation method of the flame retardant is as follows: add formaldehyde into the reaction kettle, adjust the pH value to 8.0 with triethanolamine, add melamine while stirring, raise the temperature to 65°C, and react for 3 hours. When the solution becomes clear and transparent, cool to room temperature. Add water, sodium lignosulfonate, water-soluble ammonium polyphosphate, o-cresyl glycidyl ether, stir evenly, and finally adjust the pH value of the solution system to 7.2 ...

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Abstract

The invention provides a flame-retardant polyurethane flexible foam and a preparation method thereof. The flame-retardant polyurethane flexible foam comprises a component A and a component B, wherein the component A is composed of sucrose polyether, water, dimorpholinodiethylether, ammonium methyl ricinolcic acid sulfate, butanediol, and a flame retardant, and the component B is composed of toluene diisocyanate and polypropylene oxide glycol. The flame-retardant polyurethane flexible foam not only has various excellent properties such as high resilience and the like of polyurethane flexible foams, but also has a good flame retardant performance.

Description

technical field [0001] The invention relates to materials, in particular to a flame-retardant polyurethane flexible foam and a preparation method thereof. Background technique [0002] Flexible polyurethane foam, referred to as polyurethane "soft foam", has many excellent properties such as light weight, insulation, sound insulation, heat preservation, oil resistance, breathability, non-toxicity, high resilience, etc., and is widely used in household products, sports equipment, vehicles, medical and health Equipment, national defense engineering, architectural decoration, pipeline insulation, commodity packaging and other fields, its consumption has accounted for 85% of the entire polyurethane industry, and has become an indispensable synthetic material in contemporary social life. Ordinary "soft foam" The limiting oxygen index is only about 17. It is a flammable product, which can easily lead to fires. Relevant research and production units in the country attach great impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L61/28C08L97/00C08K3/32C08K5/1515C08G18/76C08G18/66C08G12/38C08G101/00
Inventor 王新钢李利君张泽江
Owner 应急管理部四川消防研究所
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