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Environment-friendly foam extinguishing agent and preparation method thereof

A foam fire extinguishing agent, an environment-friendly technology, applied in the field of foam fire extinguishing agent, can solve the problems of high combustion calorific value, severe, non-biodegradable, etc., and achieve the effects of reducing pollution, high environmental protection, and excellent stability

Inactive Publication Date: 2022-07-08
江苏优尼科工业消防有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, flammable liquid fires have the characteristics of high combustion calorific value, fast combustion speed, fluidity and splashing, and are difficult to extinguish. The composition of the combustion products is complex, and usually contains a large amount of toxic and harmful substances.
Among the numerous foam fire extinguishing agent products, aqueous film-forming foam fire extinguishing agent (AFFF) has become the most effective fire extinguishing technology for large-scale open-air flammable liquid fires due to its high fire extinguishing efficiency. Surfactants containing branched or linear perfluorooctyl carboxylates and perfluorooctyl sulfonates are extremely stable in the environment, difficult to hydrolyze, and cannot be biodegraded, and can be actively carried out in the food chain Bioaccumulation and migration, resulting in serious environmental concerns, necessitating an environmentally friendly foam fire extinguishing agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The composition of the fire extinguishing agent includes 0.6% by weight of biological polysaccharides, 7% of environmentally friendly fluorocarbon surfactants, 20% of combined hydrocarbon surfactants, 10% of antifreeze, 3% of solubilizers and 25% of water; the carbon The hydrogen surfactant is added to the water and stirred thoroughly to fully mix the hydrocarbon surfactant with the water to form a mixed solution; the environmentally friendly fluorocarbon surfactant is added to the mixed solution in step S1 and fully stirred to form a mixed solution; the biological The polysaccharide, the antifreeze and the solubilizer are sequentially added into the stirring tank, and the mixture is slowly stirred to form a mixture; the mixture in step S2 is slowly added to the mixture in step S3, and the mixture is fully stirred to form a reaction solution, and the reaction solution is allowed to stand, The temperature is controlled at about 40°C, and the foam extinguishing agent is ob...

Embodiment 2

[0019] The composition of the fire extinguishing agent includes 0.5% by weight of biological polysaccharides, 10% of environmentally friendly fluorocarbon surfactants, 18% of combined hydrocarbon surfactants, 12% of antifreeze, 3% of solubilizers and 20% of water; the carbon The hydrogen surfactant is added to the water and stirred thoroughly to fully mix the hydrocarbon surfactant with the water to form a mixed solution; the environmentally friendly fluorocarbon surfactant is added to the mixed solution in step S1 and fully stirred to form a mixed solution; the biological The polysaccharide, the antifreeze and the solubilizer are sequentially added into the stirring tank, and the mixture is slowly stirred to form a mixture; the mixture in step S2 is slowly added to the mixture in step S3, and the mixture is fully stirred to form a reaction solution, and the reaction solution is allowed to stand, The temperature is controlled at about 40°C, and the foam extinguishing agent is o...

Embodiment 3

[0021] The composition of the fire extinguishing agent includes 0.7% by weight of biological polysaccharides, 14% of environmentally friendly fluorocarbon surfactants, 12% of combined hydrocarbon surfactants, 15% of antifreeze, 5% of solubilizers and 30% of water; the carbon The hydrogen surfactant is added to the water and stirred thoroughly to fully mix the hydrocarbon surfactant with the water to form a mixed solution; the environmentally friendly fluorocarbon surfactant is added to the mixed solution in step S1 and fully stirred to form a mixed solution; the biological The polysaccharide, the antifreeze and the solubilizer are sequentially added into the stirring tank, and the mixture is slowly stirred to form a mixture; the mixture in step S2 is slowly added to the mixture in step S3, and the mixture is fully stirred to form a reaction solution, and the reaction solution is allowed to stand, The temperature is controlled at about 40°C, and the foam extinguishing agent is o...

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PUM

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Abstract

The invention relates to the technical field of foam extinguishing agents, in particular to an environment-friendly foam extinguishing agent and a preparation method thereof.The fire extinguishing agent can be automatically degraded within a certain period, does not contain perfluorooctane sulfonic acid and perfluorooctanoic acid which are difficult to degrade, has higher environment friendliness and remarkably reduces pollution to the environment; the cleaning agent comprises the following components in percentage by weight: 0.5-1% of biological polysaccharide, 5-15% of an environment-friendly fluorocarbon surfactant, 12-30% of a combined hydrocarbon surfactant, 5-20% of an antifreeze agent, 3-5% of a solubilizer and 20-40% of water.

Description

technical field [0001] The invention relates to the technical field of foam fire extinguishing agents, in particular to an environment-friendly foam fire extinguishing agent and a preparation method thereof. Background technique [0002] Fire is considered to be the most frequent and destructive disaster among all kinds of disasters in human society. Among them, flammable liquid fires have the characteristics of high combustion calorific value, fast combustion speed, flowability and splashing properties, which are difficult to be put out. Among the many foam fire extinguishing agent products, aqueous film-forming foam fire extinguishing agent (AFFF) has become the most effective fire extinguishing technology for large-scale open-air flammable liquid fires due to its high extinguishing efficiency. Surfactants containing branched or straight-chain perfluorooctyl carboxylates and perfluorooctane sulfonates are extremely stable in the environment, difficult to hydrolyze, and ca...

Claims

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Application Information

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IPC IPC(8): A62D1/00
CPCA62D1/0071
Inventor 姚高坤吴志鹏袁野
Owner 江苏优尼科工业消防有限公司
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