CN114699704A - PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent - Google Patents
PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent Download PDFInfo
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- CN114699704A CN114699704A CN202210456610.7A CN202210456610A CN114699704A CN 114699704 A CN114699704 A CN 114699704A CN 202210456610 A CN202210456610 A CN 202210456610A CN 114699704 A CN114699704 A CN 114699704A
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- resistant
- pfos
- forming foam
- extinguishing agent
- aqueous film
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 48
- 239000006260 foam Substances 0.000 title claims abstract description 40
- 239000013535 sea water Substances 0.000 title claims abstract description 25
- 239000004094 surface-active agent Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000005303 weighing Methods 0.000 claims abstract description 12
- 239000006184 cosolvent Substances 0.000 claims abstract description 11
- 239000003755 preservative agent Substances 0.000 claims abstract description 11
- 230000002335 preservative effect Effects 0.000 claims abstract description 11
- 239000002562 thickening agent Substances 0.000 claims abstract description 11
- 230000002528 anti-freeze Effects 0.000 claims abstract description 6
- 239000007798 antifreeze agent Substances 0.000 claims abstract description 5
- YFSUTJLHUFNCNZ-UHFFFAOYSA-N perfluorooctane-1-sulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-N 0.000 claims abstract 2
- YFSUTJLHUFNCNZ-UHFFFAOYSA-M 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-M 0.000 claims description 15
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 9
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 9
- 239000004215 Carbon black (E152) Substances 0.000 claims description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 238000013329 compounding Methods 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical group C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 5
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 4
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 4
- 239000000230 xanthan gum Substances 0.000 claims description 4
- 229920001285 xanthan gum Polymers 0.000 claims description 4
- 229940082509 xanthan gum Drugs 0.000 claims description 4
- 235000010493 xanthan gum Nutrition 0.000 claims description 4
- CHHHXKFHOYLYRE-UHFFFAOYSA-M 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- Chemical compound [K+].CC=CC=CC([O-])=O CHHHXKFHOYLYRE-UHFFFAOYSA-M 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 235000013877 carbamide Nutrition 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 claims description 3
- 239000002736 nonionic surfactant Substances 0.000 claims description 3
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 claims description 3
- 235000010241 potassium sorbate Nutrition 0.000 claims description 3
- 239000004302 potassium sorbate Substances 0.000 claims description 3
- 229940069338 potassium sorbate Drugs 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 150000003672 ureas Chemical group 0.000 claims description 3
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 claims description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims description 2
- 235000010234 sodium benzoate Nutrition 0.000 claims description 2
- 239000004299 sodium benzoate Substances 0.000 claims description 2
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000007710 freezing Methods 0.000 abstract description 7
- 230000008014 freezing Effects 0.000 abstract description 6
- 239000000306 component Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 238000011160 research Methods 0.000 description 3
- 229960003237 betaine Drugs 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000005007 perfluorooctyl group Chemical group FC(C(C(C(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)* 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- A62D1/0071—Foams
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The invention discloses a PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent, which comprises the following components in percentage by mass: 1-10% of first group surfactant, 6-18% of second group surfactant, 10-40% of antifreeze, 0.1-1% of thickening agent, 2-5% of anti-burning agent, 1-3% of cosolvent, 0.1-1% of preservative, 0.01-0.1% of pH regulator and the balance of water. The aqueous film-forming foam extinguishing agent comprises the following steps: adding a thickener to water to form component A; weighing a first group of surfactants, adding the first group of surfactants into water, and weighing a second group of surfactants, adding the second group of surfactants into the water to form a component B; weighing an antifreeze agent and a cosolvent to form a component C; a, B, C are mixed to form component D; adding an anti-burning agent, a preservative and a pH regulator into the D; adding the rest of water to obtain the aqueous film-forming foam extinguishing agent. The aqueous film-forming foam extinguishing agent prepared by the invention does not contain PFOS, has a lower freezing point, and can meet the application scene requirements in cold regions.
Description
Technical Field
The invention relates to the field of fire extinguishing agents, and in particular relates to a PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent.
Background
The development of foam extinguishants has been in use for nearly a century. Among them, aqueous film-forming foam extinguishants have proven to be the most common and effective method for extinguishing flammable hydrocarbon liquids. Particularly in large open-air flammable liquid fires, such as aircraft carrier deck fires, offshore oil field drilling platform fires, aqueous film-forming foam extinguishants are considered to be the only effective fire extinguishants for oil storage tank fires and liquid fuel leakage fires. Many countries and the related international fire-fighting organizations have also used aqueous film-forming foam extinguishing agents as important fire extinguishing agents for extinguishing oil-based fires and liquid fires, with over 70% of the market share in the western developed countries many years ago. At present, the core component of the traditional aqueous film-forming foam extinguishing agent is perfluorooctane sulfonate and derivatives thereof, and the traditional aqueous film-forming foam extinguishing agent has the disadvantages of environmental persistence, biological accumulation, high toxicity and the like on ecology due to the special molecular structure of perfluorooctyl, and in 2010, the perfluorooctane sulfonate (PFOS) and the derivatives thereof are listed in a controlled list of Persistent Organic Pollutants (POPs) in the Stockholm convention.
Furthermore, some scientific research institutions and experts have proposed to address PFOS restriction by reducing the concentration and amount of fluorocarbon surfactant. However, not the long-term development, some institutes research the fluorocarbon surfactant in the aqueous film-forming foam fire extinguishing agent to be replaced by low fluorine or fluorine-free, but the prepared aqueous film-forming foam fire extinguishing agent has poor fire extinguishing effect, low fire extinguishing efficiency and too high freezing point, and is difficult to apply to northern areas. Therefore, the research on the high-efficiency aqueous film-forming foam extinguishing agent which does not contain PFOS, is seawater-resistant and has lower freezing point is of great significance.
Disclosure of Invention
The invention aims to provide a PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent, and the aqueous film-forming foam extinguishing agent prepared by the invention does not contain PFOS, has a low freezing point, and can meet the application scene requirements of cold regions.
In order to achieve the purpose, the invention provides the following technical scheme:
a seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent without PFOS (perfluorooctane sulfonate) comprises the following components in percentage by mass: 1-10% of first group surfactant, 6-18% of second group surfactant, 10-40% of antifreeze, 0.1-1% of thickening agent, 2-5% of anti-burning agent, 1-3% of cosolvent, 0.1-1% of preservative, 0.01-0.1% of pH regulator and the balance of water.
Preferably, the first group of surfactants is compounded by amphoteric fluorocarbon surfactants with a betaine structural formula of which the fluorocarbon number is 6 and straight chains and branched chains.
Preferably, the second group of surfactants is compounded by a zwitterionic hydrocarbon surfactant and a nonionic surfactant of the following structural formula:
preferably, the antifreeze is one or more of n-butyl alcohol, ethylene glycol and salt.
Preferably, the thickener is xanthan gum.
Preferably, the anti-burning agent is carbamide.
Preferably, the cosolvent is one or two of ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, propylene glycol methyl ether, ethylene glycol methyl ether and ethylene glycol ethyl ether.
Preferably, the preservative is one or two of sodium benzoate and potassium sorbate.
Preferably, the pH regulator is one of sodium bicarbonate, caustic soda, ammonia water, ethylenediamine, ethanolamine, and triethanolamine.
A preparation method of the PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent comprises the following steps:
(1) adding a thickener to water to form component A;
(2) weighing a first group of surfactants, adding the first group of surfactants into water, and weighing a second group of surfactants, adding the second group of surfactants into the water to form a component B;
(3) weighing an antifreeze agent and a cosolvent to form a component C;
(4) a, B, C are mixed to form component D;
(5) adding an anti-burning agent, a preservative and a pH regulator into the D;
(6) adding the rest of water to obtain the PFOS-free seawater-resistant low-temperature-resistant water film-forming foam extinguishing agent.
Compared with the prior art, the invention has the beneficial effects that:
1) the low-fluorine surfactant compounding, the hydrocarbon surfactant compounding and the anti-freezing agent compounding are selected, the optimal compatibility ratio is found, the prepared aqueous film-forming foam extinguishing agent does not contain PFOS, the high performance meets the requirements of national standard IA level, and the low freezing point meets the requirements of application scenes in low-temperature areas;
2) according to the invention, a plurality of hydrocarbon and fluorocarbon surfactants are innovatively used for compounding to play a synergistic effect, the surface tension of the foam liquid can be reduced to 16.0mN/m to the minimum extent, the spreading performance of the foam liquid is greatly improved, perfluorooctane sulfonate and a derivative (PFOS) thereof are not contained, the 28-day biodegradation rate exceeds 99%, the foam liquid can be used at the minimum temperature of-30 ℃, the fire extinguishing time, the burning resistance time and the 25% liquid separation time exceed similar products in the market, and the blank of the domestic market is filled.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Examples
A seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent without PFOS (perfluorooctane sulfonate) comprises the following components in percentage by mass: 1-10% of first group surfactant, 6-18% of second group surfactant, 10-40% of antifreeze, 0.1-1% of thickening agent, 2-5% of anti-burning agent, 1-3% of cosolvent, 0.1-1% of preservative, 0.01-0.1% of pH regulator and the balance of water. The first group of surfactants is compounded by amphoteric fluorocarbon surfactants of betaine structural formula of straight chain and branched chain with fluorocarbon number of 6, wherein the weight ratio of the first group of surfactants to the second group of surfactants is 0.7:1, and the amphoteric fluorocarbon surfactants are Capstone FS-50 and Capstone 1157. The second group of surfactants is prepared by compounding a zwitterionic hydrocarbon surfactant CAB-35 and nonionic surfactants APG0810 and APG245 in a mass ratio of 1:1: 1.
The antifreeze agent is compounded by n-butyl alcohol and salt. The thickener is xanthan gum. The anti-burning agent is carbamide. The cosolvent is diethylene glycol monobutyl ether. The preservative is potassium sorbate. The pH regulator is ammonia water.
A PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent comprises the following steps:
(1) weighing 0.3kg of thickening agent xanthan gum, and adding into a proper amount of water to form a component A;
(2) weighing 1.7kg of a first group of surfactants and 9kg of a second group of surfactants to form a component B;
(3) weighing 19kg of antifreeze agent and 3kg of cosolvent to form a component C;
(4) mixing A, B, C components to form component D;
(5) adding 3kg of anti-burning agent, 0.4kg of preservative and 0.02kg of pH regulator ammonia water into the mixture D, adding 100kg of the mixture, stirring at a constant speed for 90min, standing and defoaming for 24h to obtain 100kg of foam extinguishing agent concentrated solution.
The performances of the seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent without PFOS according to the test of the national standard GB15308-2006 are shown in the following table:
| serial number | Inspection item | Measured result |
| 1 | Freezing point | -36℃ |
| 2 | pH value | 7.0 |
| 3 | Surface tension | 15.8 |
| 4 | Time of fire extinguishing | Fresh water for 1.6min and seawater for 1.7min |
| 5 | Duration of burning resistance | Fresh water 19.2min and seawater 19min |
| 6 | 25% time to separate liquid | 8.2min |
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (10)
1. A seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent without PFOS (perfluorooctane sulfonate) is characterized by comprising the following components in percentage by mass: 1-10% of first group surfactant, 6-18% of second group surfactant, 10-40% of antifreeze, 0.1-1% of thickening agent, 2-5% of anti-burning agent, 1-3% of cosolvent, 0.1-1% of preservative, 0.01-0.1% of pH regulator and the balance of water.
2. The PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent as claimed in claim 1, wherein the first group of surfactants is compounded by amphoteric fluorocarbon surfactants of betaine structure type with a straight chain and a branched chain of which the number of fluorocarbons is 6.
3. The PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent as claimed in claim 1, wherein the second group of surfactants is prepared by compounding zwitterionic hydrocarbon surfactant and nonionic surfactant of the following structural formula:
4. the PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent as claimed in claim 1, wherein: the antifreeze is one or more of n-butyl alcohol, ethylene glycol and salt.
5. The PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent as claimed in claim 1, wherein: the thickening agent is xanthan gum.
6. The PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent as claimed in claim 1, wherein: the anti-burning agent is carbamide.
7. The PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent as claimed in claim 1, wherein: the cosolvent is one or two of ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, propylene glycol methyl ether, ethylene glycol methyl ether and ethylene glycol ethyl ether.
8. The PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent as claimed in claim 1, wherein: the preservative is one or two of sodium benzoate and potassium sorbate.
9. The PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent as claimed in claim 1, wherein: the pH regulator is one of sodium bicarbonate, caustic soda, ammonia water, ethylenediamine, ethanolamine and triethanolamine.
10. A process for preparing the PFOS-free seawater low temperature resistant type aqueous film-forming foam fire extinguishing agent according to any one of claims 1 to 9, wherein the process comprises the steps of:
(1) adding a thickener to water to form component A;
(2) weighing a first group of surfactants, adding the first group of surfactants into water, and weighing a second group of surfactants, adding the second group of surfactants into the water to form a component B;
(3) weighing an antifreeze agent and a cosolvent to form a component C;
(4) a, B, C are mixed to form component D;
(5) adding an anti-burning agent, a preservative and a pH regulator into the D;
(6) adding the rest of water to obtain the PFOS-free seawater-resistant low-temperature-resistant water film-forming foam extinguishing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210456610.7A CN114699704A (en) | 2022-04-27 | 2022-04-27 | PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210456610.7A CN114699704A (en) | 2022-04-27 | 2022-04-27 | PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent |
Publications (1)
| Publication Number | Publication Date |
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| CN114699704A true CN114699704A (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210456610.7A Pending CN114699704A (en) | 2022-04-27 | 2022-04-27 | PFOS-free seawater-resistant low-temperature-resistant aqueous film-forming foam extinguishing agent |
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| Country | Link |
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| CN (1) | CN114699704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115607894A (en) * | 2022-09-30 | 2023-01-17 | 中科永安(铜陵)科技有限公司 | Fluorine-free high-stability MJABP type A foam extinguishing agent and preparation method thereof |
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| US4383929A (en) * | 1979-04-06 | 1983-05-17 | Produits Chimiques Ugine Kuhlmann | Fluorinated sulphobetaines and compositions containing the same |
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-
2022
- 2022-04-27 CN CN202210456610.7A patent/CN114699704A/en active Pending
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| US4383929A (en) * | 1979-04-06 | 1983-05-17 | Produits Chimiques Ugine Kuhlmann | Fluorinated sulphobetaines and compositions containing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115607894A (en) * | 2022-09-30 | 2023-01-17 | 中科永安(铜陵)科技有限公司 | Fluorine-free high-stability MJABP type A foam extinguishing agent and preparation method thereof |
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