CN114796964A - Environment-friendly water-based extinguishing agent and preparation method thereof - Google Patents
Environment-friendly water-based extinguishing agent and preparation method thereof Download PDFInfo
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- CN114796964A CN114796964A CN202210329842.6A CN202210329842A CN114796964A CN 114796964 A CN114796964 A CN 114796964A CN 202210329842 A CN202210329842 A CN 202210329842A CN 114796964 A CN114796964 A CN 114796964A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0028—Liquid extinguishing substances
- A62D1/0035—Aqueous solutions
- A62D1/0042—"Wet" water, i.e. containing surfactant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses an environment-friendly water-based extinguishing agent and a preparation method thereof. The water-based fire extinguishing agent comprises a C6 short-chain fluorocarbon surfactant, a C6 fluorine-containing polymer, a foaming agent, a fire retardant and an organic solvent, wherein the fire extinguishing agent comprises the C6 short-chain fluorocarbon surfactant, the C6 fluorine-containing polymer and the foaming agent in parts by mass (3-10): (3-10): (8-19). In addition, the fire extinguishing agent of the present invention also includes an antifreeze. The water-based fire extinguishing agent has the advantages of low surface tension, wide application range, high fire extinguishing speed and good re-ignition resistance, and has a higher fire extinguishing grade. The water-based fire extinguishing agent does not contain PFOS and PFOA, is not easy to enrich in the environment, has no pungent smell, can be completely biodegraded after being sprayed, and is easy to clean after fire extinguishing.
Description
Technical Field
The invention belongs to the technical field of fire extinguishing agents, and particularly relates to an environment-friendly water-based fire extinguishing agent and a preparation method thereof.
Background
The fire extinguishing mechanism of the water-based fire extinguishing agent is that liquid is separated out to cool the surface of a comburent while the water spreads on the surface of the comburent, a water film and a micro-foam layer are formed on the surface of the comburent to jointly seal the surface of the comburent, air is isolated, a heat insulation barrier is formed, the liquid after absorbing heat is vaporized and dilutes the oxygen content in the air above the surface of the comburent, and a suffocation effect is generated on the comburent, so that the fire extinguishing effect is achieved.
Water-based extinguishants are gaining increasing attention from researchers and users due to their advantage of high extinguishing efficiency. However, the existing commonly used water-based fire extinguishing agent has low fire extinguishing grade and poor afterburning resistance, and the fire extinguishing effect of the water-based fire extinguishing agent is seriously influenced. In addition, most of the gasoline contains a certain amount of polar organic solvents such as methanol or denatured ethanol, and the like, so that the gasoline has a certain damage effect on foams. Therefore, there is an urgent need to develop a water-based fire extinguishing agent having a high fire extinguishing level, a wide application range, and good afterburning resistance.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art described above. Therefore, the invention provides an environment-friendly water-based fire extinguishing agent and a preparation method thereof, the water-based fire extinguishing agent has the advantages of low surface tension, wide application range, high fire extinguishing speed and good afterburning resistance, and in addition, the water-based fire extinguishing agent has higher fire extinguishing grade, and can extinguish 3A and 89B-grade fire in 6L. The water-based fire extinguishing agent does not contain perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid ammonium (PFOA), is not easy to enrich in the environment, has no pungent smell, can be completely biodegraded after being sprayed, and is easy to clean after fire extinguishing.
In a first aspect of the invention, a water-based fire extinguishing agent is provided, which comprises a C6 short-chain fluorocarbon surfactant, a C6 fluorine-containing polymer, a foaming agent, a fire retardant and an organic solvent.
According to the first aspect of the invention, in some embodiments of the invention, the fire extinguishing agent comprises (3-10) parts by weight of a C6 short-chain fluorocarbon surfactant, a C6 fluorine-containing polymer and a foaming agent: (3-10): (8-19).
In some more preferred embodiments of the present invention, the C6 short chain fluorocarbon surfactant is a perfluoroalkyl amine oxide.
In some more preferred embodiments of the present invention, the perfluoroalkylamine oxide is of type FSC-111.
In some more preferred embodiments of the invention, the perfluoroalkyl amine oxide is available from Hasford chemical, Inc., Sanming.
In some more preferred embodiments of the present invention, the foaming agent comprises (2-4) of a nonionic surfactant, an anionic surfactant and a zwitterionic surfactant in parts by mass: (2-5): (6-10).
In some more preferred embodiments of the present invention, the nonionic surfactant comprises one or a combination of the alkyl glycoside APG0810 or fatty alcohol polyoxyethylene ether AEO-9.
In some more preferred embodiments of the invention, the anionic surfactant comprises one or a combination of sodium octyl sulfate or sodium decyl sulfate SDS 1030.
In some more preferred embodiments of the invention, the zwitterionic surfactant comprises one or a combination of sodium N-lauryl- β -iminodipropionate 160C or cocamidopropyl betaine CAB-35.
In some more preferred embodiments of the present invention, the C6 fluoropolymer comprises a perfluoroalkyl polyacrylamide.
In some more preferred embodiments of the present invention, the perfluoroalkyl polyacrylamide is type YY-1069.
In some more preferred embodiments of the present invention, the perfluoroalkyl polyacrylamide is available from shanghai yuyang chemical company, ltd.
In some preferred embodiments of the present invention, the fire extinguishing agent comprises 5 to 15% of a fire retardant and 5 to 10% of an organic solvent by weight.
In some more preferred embodiments of the present invention, the flame retardant comprises one of ammonium polyphosphate, ammonium sulfate, diammonium phosphate, or a combination thereof.
In some more preferred embodiments of the present invention, the organic solvent comprises one of dipropylene glycol monomethyl ether, diethylene glycol monobutyl ether, dipropylene glycol monobutyl ether, or combinations thereof.
In some preferred embodiments of the invention, the fire extinguishing agent further comprises an antifreeze agent.
In some more preferred embodiments of the present invention, the anti-freezing agent comprises one of ethylene glycol, propylene glycol, glycerin, urea, or a combination thereof.
In some more preferred embodiments of the present invention, the content of the anti-freezing agent is 5 to 10% by weight.
In some preferred embodiments of the invention, the fire extinguishing agent further comprises water.
In a second aspect of the present invention, there is provided a method for preparing the water-based fire extinguishing agent according to the first aspect of the present invention, comprising the steps of: stirring and mixing the C6 short-chain fluorocarbon surfactant, the C6 fluorine-containing polymer, the foaming agent, the flame retardant and the organic solvent according to the corresponding weight percentage to prepare the fire extinguishing agent.
In some preferred embodiments of the present invention, an antifreeze agent is further added to the preparation of the fire extinguishing agent.
In some preferred embodiments of the present invention, water is also added to the preparation of the fire extinguishing agent.
The water-based fire extinguishing agent contains a C6 short-chain fluorocarbon surfactant, a C6 fluorine-containing polymer, a compound foaming agent, a flame retardant and an organic solvent. In the invention, the C6 short-chain fluorocarbon surfactant is preferably perfluoroalkyl amine oxide with the type being FSC-111, and compared with other amphoteric betaine fluorine-containing surfactants, the perfluoroalkyl amine oxide has lower surface tension and higher fire extinguishing speed. According to the invention, the C6 fluorine-containing polymer is preferably perfluoroalkyl polyacrylamide, and through the coordination effect between the C6 short-chain fluorocarbon surfactant and the C6 fluorine-containing polymer, the viscosity of the foam liquid can be increased, the foaming multiplying power of the foam is improved, the foam is more stable and compact, the foam stabilizing effect is achieved, and the fire extinguishing efficiency of the water-based fire extinguishing agent is further improved. The foaming agent is compounded by alkyl glycoside APG0810, sodium decyl sulfate SDS1030 and N-lauryl-beta-iminodiacetic acid sodium 160C, and the compounded foaming agent can further reduce the surface tension of foam liquid and improve the fire extinguishing speed of the fire extinguishing agent, thereby improving the fire extinguishing level of the fire extinguishing agent. In addition, the organic solvent used in the invention has higher environmental protection compared with the traditional organic solvent; the fire retardant can further improve the fire extinguishing effect of the fire extinguishing agent and improve the anti-recrudescence performance of the fire extinguishing agent.
The invention has the beneficial effects that:
the water-based fire extinguishing agent has the advantages of low surface tension, wide application range, high fire extinguishing speed and good afterburning resistance, and in addition, the fire extinguishing agent has higher fire extinguishing grade, can extinguish 3A and 89B fire by 6L, and is suitable for extinguishing A, B, C, E, F fire; in addition, the water-based fire extinguishing agent does not contain PFOS and PFOA, is not easy to enrich in the environment, has no pungent smell, can be completely biodegraded after being sprayed, and is easy to clean after fire extinguishing.
Detailed Description
The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. These examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
TABLE 1 model number and purchase source of materials used in the examples of the present invention
| Material | Purchase source | Model number |
| Perfluoroalkyl amine oxide | SANMING HEXAFLUO CHEMICALS Co.,Ltd. | FSC-111 |
| Perfluoroalkyl polyacrylamides | Shanghai Yuyang chemical Co., Ltd | YY-1069 |
| Alkyl glycosides | YANGZHOU CHENHUA NEW MATERIALS Co.,Ltd. | APG0810 |
| Sodium decyl sulfate | Solavi chemical industry (Shanghai) Co., Ltd | SDS1030 |
| N-lauryl-beta-iminodiacetic acid sodium salt | Solavi chemical industry (Shanghai) Co., Ltd | 160C |
Example 1
The water-based fire extinguishing agent in example 1 was prepared from 3% by weight of perfluoroalkyl amine oxide FSC-111, 3% by weight of perfluoroalkyl polyacrylamide YY-1069, 2% by weight of alkyl glycoside APG0810, 2% by weight of sodium decyl sulfate SDS1030, 10% by weight of sodium N-lauryl- β -iminodipropionate 160C, 5% by weight of dipropylene glycol monomethyl ether, 5% by weight of ethylene glycol, 5% by weight of urea, 5% by weight of ammonium polyphosphate, and 60% by weight of water.
The method comprises the following specific steps: 60kg of water is added into a stirring tank, 5kg of ammonium polyphosphate, 5kg of ethylene glycol, 5kg of urea, 5kg of dipropylene glycol monomethyl ether, 2kg of alkyl glycoside APG0810, 2kg of sodium decyl sulfate SDS1030, 10kg of N-lauryl-beta-iminodipropionate 160C, 3kg of perfluoroalkyl polyacrylamide and 3kg of perfluoroalkyl amine oxide are sequentially added under mechanical stirring of 300r/min, and stirring is carried out for 30 min. And finally, adjusting the pH value of the mixture to 7-8 by using sodium hydroxide or citric acid, continuously stirring for 10min, standing for defoaming for 120min, and barreling the product.
Example 2
The water-based fire extinguishing agent of example 2 was prepared from 5% by weight of perfluoroalkyl amine oxide FSC-111, 5% by weight of perfluoroalkyl polyacrylamide YY-1069, 3% by weight of alkyl glycoside APG0810, 3% by weight of sodium decyl sulfate SDS1030, 9% by weight of sodium N-lauryl- β -iminodipropionate 160C, 6% by weight of dipropylene glycol monobutyl ether, 7% by weight of ethylene glycol, 10% by weight of urea, 8% by weight of ammonium polyphosphate, and 44% by weight of water.
The method comprises the following specific steps: 44kg of water is added into a stirring tank, 8kg of ammonium polyphosphate, 7kg of ethylene glycol, 10kg of urea, 6kg of dipropylene glycol monobutyl ether, 3kg of alkyl glycoside APG0810, 3kg of sodium decyl sulfate SDS1030, 9kg of N-lauryl-beta-imino sodium dipropionate 160C, 5kg of perfluoroalkyl polyacrylamide and 5kg of perfluoroalkyl amine oxide are sequentially added under mechanical stirring of 300r/min, and stirring is carried out for 30 min. And finally, adjusting the pH value of the mixture to 7-8 by using sodium hydroxide or citric acid, continuously stirring for 10min, standing for defoaming for 20min, and then barreling the product.
Example 3
The water-based fire extinguishing agent in example 3 was prepared from 8% by weight of perfluoroalkyl amine oxide FSC-111, 7% by weight of perfluoroalkyl polyacrylamide YY-1069, 4% by weight of alkyl glycoside APG0810, 5% by weight of sodium decyl sulfate SDS1030, 10% by weight of sodium N-lauryl- β -iminodipropionate 160C, 10% by weight of dipropylene glycol monomethyl ether, 10% by weight of ethylene glycol, 12% by weight of urea, 5% by weight of ammonium polyphosphate, 5% by weight of ammonium sulfate, and 24% by weight of water.
The method comprises the following specific steps: 24kg of water is added into a stirring tank, 5kg of ammonium polyphosphate, 5kg of ammonium sulfate, 10kg of ethylene glycol, 12kg of urea, 10kg of dipropylene glycol monomethyl ether, 4kg of alkyl glycoside APG0810, 5kg of sodium decyl sulfate SDS1030, 10kg of N-lauryl-beta-iminodipropionate 160C, 7kg of perfluoroalkyl polyacrylamide and 8kg of perfluoroalkyl amine oxide are sequentially added under mechanical stirring of 300r/min and stirred for 30 min. And finally, adjusting the pH value of the mixture to 7-8 by using sodium hydroxide or citric acid, continuously stirring for 10min, standing for defoaming for 20min, and then barreling the product.
Comparative example 1
The water-based fire extinguishing agent in comparative example 1 was prepared from 6% of perfluoroalkylamine oxide FSC-111, 2% of alkylglycoside APG0810, 2% of sodium decyl sulfate SDS1030, 10% of sodium N-lauryl- β -iminodipropionate 160C, 5% of dipropylene glycol monomethyl ether, 5% of ethylene glycol, 5% of urea, 5% of ammonium polyphosphate, and 60% of water, in terms of weight%.
The specific procedure was the same as in example 1.
Comparative example 2
The water-based fire extinguishing agent of comparative example 2 was prepared from 6% by weight of perfluoroalkyl polyacrylamide YY-1069, 2% by weight of alkyl glycoside APG0810, 2% by weight of sodium decyl sulfate SDS1030, 10% by weight of sodium N-lauryl- β -iminodipropionate 160C, 5% by weight of dipropylene glycol monomethyl ether, 5% by weight of ethylene glycol, 5% by weight of urea, 5% by weight of ammonium polyphosphate, and 60% by weight of water.
The specific procedure was the same as in example 1.
Comparative example 3
The water-based fire extinguishing agent of comparative example 3 was prepared from 3% of perfluoroalkylamine oxide FSC-111, 3% of perfluoroalkylpolyacrylamide YY-1069, 4% of sodium decylsulfate SDS1030, 10% of sodium N-lauryl- β -iminodipropionate 160C, 5% of dipropylene glycol monomethyl ether, 5% of ethylene glycol, 5% of urea, 5% of ammonium polyphosphate and 60% of water, in terms of weight%.
The preparation method is the same as example 1.
Comparative example 4
The water-based fire extinguishing agent of comparative example 4 was prepared from 3% of perfluoroalkyl amine oxide FSC-111, 3% of perfluoroalkyl polyacrylamide YY-1069, 4% of alkyl glycoside APG0810, 10% of sodium N-lauryl- β -iminodipropionate 160C, 5% of dipropylene glycol monomethyl ether, 5% of ethylene glycol, 5% of urea, 5% of ammonium polyphosphate, and 60% of water, in terms of weight%.
The preparation method is the same as example 1.
Comparative example 5
The water-based fire extinguishing agent of comparative example 5 was prepared from 3% of perfluoroalkyl amine oxide FSC-111, 3% of perfluoroalkyl polyacrylamide YY-1069, 7% of alkyl glycoside APG0810, 7% of sodium decyl sulfate SDS1030, 5% of dipropylene glycol monomethyl ether, 5% of ethylene glycol, 5% of urea, 5% of ammonium polyphosphate, and 60% of water, in terms of weight%.
The preparation method is the same as example 1.
The prepared fire extinguishing agent and water are mixed according to the mass ratio of 3: 97 to prepare a solution for extinguishing fire. The product of the invention is self-checked according to the national standard GB17835-2008 of foam extinguishing agent, and the physicochemical properties and fire extinguishing performance of the solution meet the standard requirements, and the specific test results are shown in the following table 2:
TABLE 2 Performance test results of 6L of water-based fire extinguishing agents prepared in examples 1 to 3 and comparative examples 1 to 5
As can be seen from Table 2, under the coordination of the C6 short-chain fluorocarbon surfactant and the C6 fluoropolymer and the compounding action of the foaming agent alkyl glycoside APG0810, the alkyl glycoside APG0810 and the N-lauryl-beta-iminodiacetic acid sodium 160C, compared with the fire extinguishing agents in the comparative examples 1-5, the water-based fire extinguishing agent prepared in the embodiment of the invention has lower surface tension, has the advantages of high fire extinguishing speed and high fire extinguishing level for A-type fire and B-type fire, can extinguish 3A and 89B-type fire for 6L, and has lower toxicity.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. The water-based fire extinguishing agent is characterized by comprising a C6 short-chain fluorocarbon surfactant, a C6 fluorine-containing polymer, a foaming agent, a fire retardant and an organic solvent, wherein the mass part ratio of the C6 short-chain fluorocarbon surfactant, the C6 fluorine-containing polymer and the foaming agent in the fire extinguishing agent is (3-10): (3-10): (8-19).
2. The fire extinguishing agent of claim 1, wherein the C6 short chain fluorocarbon surfactant is a perfluoroalkyl amine oxide.
3. The fire extinguishing agent of claim 1, wherein the C6 fluoropolymer comprises a perfluoroalkyl polyacrylamide.
4. The fire extinguishing agent according to claim 1, wherein the foaming agent comprises a nonionic surfactant, an anionic surfactant and a zwitterionic surfactant in a mass part ratio of (2-4): (2-5): (6-10); wherein the nonionic surfactant comprises one or the combination of alkyl glycoside APG0810 or fatty alcohol polyoxyethylene ether AEO-9; the anionic surfactant comprises one or a combination of sodium octyl sulfate or sodium decyl sulfate SDS 1030; the zwitterionic surfactant comprises one or a combination of N-lauryl-beta-iminodiacetic acid sodium 160C or cocamidopropyl betaine CAB-35.
5. The fire extinguishing agent according to claim 1, wherein the fire extinguishing agent comprises 5-15% of the fire retardant and 5-10% of the organic solvent by weight.
6. The fire extinguishing agent of claim 5, wherein the fire retardant comprises one or a combination of ammonium polyphosphate, ammonium sulfate, or diammonium phosphate.
7. The fire extinguishing agent of claim 1, wherein the organic solvent comprises one or a combination of dipropylene glycol monomethyl ether, diethylene glycol monobutyl ether, or dipropylene glycol monobutyl ether.
8. The fire extinguishing agent of claim 1, further comprising a cryoprotectant comprising one or a combination of ethylene glycol, propylene glycol, glycerol, or urea.
9. The fire extinguishing agent according to claim 8, wherein the content of the anti-freezing agent is 5-10% by weight.
10. A method of preparing a fire extinguishing agent according to any one of claims 1 to 9, comprising the steps of: stirring and mixing the C6 short-chain fluorocarbon surfactant, the C6 fluorine-containing polymer, the foaming agent, the flame retardant and the organic solvent according to the corresponding weight percentage to prepare the fire extinguishing agent.
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| CA2312067A1 (en) * | 1997-12-10 | 1999-06-17 | Minnesota Mining And Manufacturing Company | Fire-fighting agents containing adsorbable fluorocarbon surfactants |
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| CN108837367A (en) * | 2018-06-01 | 2018-11-20 | 潘洋 | A kind of preparation method and application of environment-friendly type aqueous film-forming foam extinguishing agent |
| CN110478847A (en) * | 2019-09-29 | 2019-11-22 | 中国科学技术大学 | A kind of environment-friendly type aqueous film-forming foam extinguishing agent based on short chain fluorine carbon |
| CN113398522A (en) * | 2021-06-17 | 2021-09-17 | 海南飞浪消防科技有限公司 | Seawater-resistant environment-friendly aqueous film-forming foam extinguishing agent and preparation method and application thereof |
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2022
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Patent Citations (6)
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| US4983769A (en) * | 1980-02-29 | 1991-01-08 | P C U K Produits Chimiques Ugine Kuhlmann | Perfluoroalkylamine oxides and use of these products in fire extinguishing compositions |
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| US20160023033A1 (en) * | 2013-03-15 | 2016-01-28 | Tyco Fire Products Lp | Perfluoroalkyl Composition with Reduced Chain Length |
| CN108837367A (en) * | 2018-06-01 | 2018-11-20 | 潘洋 | A kind of preparation method and application of environment-friendly type aqueous film-forming foam extinguishing agent |
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