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Aqueous film-forming foam extinguishing agent based on short fluorocarbon chains

A foam fire extinguishing agent and fluorocarbon chain technology, applied in fire protection equipment and other directions, can solve the problems of high concentration of fluorosurfactants, unfavorable promotion and use, large environmental emissions, etc., and achieve environmental friendliness, low production cost, and good safety performance. Effect

Active Publication Date: 2016-08-17
CIVIL AVIATION FLIGHT UNIV OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fluorosurfactant used in this formula has a high concentration and high cost, which is not conducive to a large number of popularization and use; on the other hand, although the fluorosurfactant used belongs to a short fluorocarbon chain, because of the large amount of use, the environmental discharge is also large. still cause environmental burden

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: the preparation of aqueous film-forming foam fire extinguishing agent concentrate (1 ton of 6% type)

[0030] 50 kg of C was added to the reactor 3 FH and 50 kg C 3 FOH (CH 3 ) 3 , then add 650 kg of industrial soft water and fully stir to pre-dissolve; under stirring, add 2 kg of C 12 h 25 N + (CH 3 ) 2 CH 2 COO - , 2 kg C 12 h 25 N(CH 3 ) 2 O, 50 kg ethylene glycol monobutyl ether, 50 kg ethylene glycol, 4 kg sodium alginate, 2 kg xanthan gum, 30 kg n-butanol, 1 kg benzotriazole, 2 kg formaldehyde solution, 1 kg EDTA, 1 kg tris aqueous solution; after stirring and mixing, use ammonia water or acetic acid to adjust the pH value of the solution to 7, then add industrial soft water to a total weight of 1 ton, and stir evenly to obtain the product.

Embodiment 2

[0031] Embodiment 2: Preparation of aqueous film-forming foam fire extinguishing agent concentrate (1 ton of 6% type)

[0032] 60 kg of C was added to the reactor 3 FH, 40 kg C 3 FOH (CH 3 ) 3 , then add 650 kg of industrial soft water and fully stir to pre-dissolve; under stirring conditions, add 2 kg of C 12 h 25 N + (CH 3 ) 2 CH 2 COO - , 2 kg C 12 h 25 N(CH 3 ) 2 O, 50 kg ethylene glycol monobutyl ether, 50 kg ethylene glycol, 4 kg sodium alginate, 2 kg xanthan gum, 30 kg n-butanol, 1 kg benzotriazole, 2 kg formaldehyde solution, 1 kg EDTA, 1 kg tris aqueous solution; after stirring and mixing, use ammonia water or acetic acid to adjust the pH value of the solution to 7, then add industrial soft water to a total weight of 1 ton, and stir evenly to obtain the product.

Embodiment 3

[0033] Embodiment 3, preparation of aqueous film-forming foam fire extinguishing agent concentrate (1 ton of 6% type)

[0034] 70 kg of C was added to the reactor 3 FH, 30 kg C 3 FOH (CH 3 ) 3 , and then 650 kg of industrial soft water and fully stirred to pre-dissolve; under the condition of stirring, add 2 kg of C 12 h 25 N + (CH 3 ) 2 CH 2 COO - , 2 kg C 12 h 25 N(CH 3 ) 2 O, 50 kg ethylene glycol monobutyl ether, 50 kg ethylene glycol, 4 kg sodium alginate, 2 kg xanthan gum, 30 kg n-butanol, 1 kg benzotriazole, 2 kg formaldehyde solution, 1 kg EDTA, 1 kg tris aqueous solution; after stirring and mixing, use ammonia water or acetic acid to adjust the pH value of the solution to 7, then add industrial soft water to a total weight of 1 ton, and stir evenly to obtain the product.

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PUM

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Abstract

The invention provides an aqueous film-forming foam extinguishing agent based on short fluorocarbon chains. The aqueous film-forming foam extinguishing agent is composed of fluorocarbon surface active agents, hydrocarbon surface active agents, hydrophilic polymers, organic solvents, water and the like. The fluorocarbon surface active agents are anion-cation fluorine surface active agent composites based on the short fluorocarbon chains. The mole ratio of anion fluorocarbon surface active agents to cation fluorocarbon surface active agents is 5:1-1:5. The aqueous film-forming foam extinguishing agent is low in production cost, simple in preparation method, environmentally friendly, and high in extinguishing speed.

Description

technical field [0001] The invention relates to a foam fire extinguishing agent, in particular to an aqueous film-forming foam fire extinguishing agent based on short fluorocarbon chains, and belongs to the technical field of fire-fighting consumables. Background technique [0002] Aqueous film-forming foam fire extinguishing agent (AFFF for short) is a foam fire extinguishing agent that is based on hydrocarbon surfactants and fluorocarbon surfactants and can form a layer of water film on the surface of certain hydrocarbon liquids. Because the main components of the aqueous film-forming foam fire extinguishing agent and the various additives added are non-toxic and non-polluting, it has been widely used in the prevention and treatment of fires in airports, oil fields, large chemical plants, chemical warehouses, oil depots, ships, docks, etc. Firefighting is an environmentally friendly fire extinguishing agent developed internationally, and it is currently recognized as the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/02
CPCA62D1/0064A62D1/0085
Inventor 贺元骅陈现涛伍毅肖进新刑航贾旭宏贾井运孙强
Owner CIVIL AVIATION FLIGHT UNIV OF CHINA
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