CN110801596A - Fire extinguishing agent composition, preparation method and application thereof - Google Patents
Fire extinguishing agent composition, preparation method and application thereof Download PDFInfo
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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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- 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
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Abstract
The invention relates to the technical field of fire extinguishing agents, and particularly relates to a fire extinguishing agent composition and preparation and application thereof. The fire extinguishing agent composition disclosed by the invention comprises a fluorocarbon surfactant, a hydrocarbon nonionic surfactant and a hydrocarbon zwitterionic surfactant, wherein the fluorocarbon chain has excellent hydrophobicity and oleophobicity, the surface activity is high, the chemical stability and the thermal stability are good, and the use of the hydrocarbon nonionic surfactant and the hydrocarbon zwitterionic surfactant reduces the use dosage of the fluorocarbon surfactant, so that the foam performance and the fire extinguishing performance can be improved, the foam liquid discharge time is prolonged, the stability of a fire extinguishing system is improved, and the loss is not easy to occur; the fire extinguishing agent composition with rich, fine and stable foam is prepared by using the foam stabilizer and the foaming agent under the assistance of the surfactant and the foam stabilizer, can quickly extinguish fire and has good fire extinguishing efficiency.
Description
Technical Field
The invention relates to the technical field of fire extinguishing agents, and particularly relates to a fire extinguishing agent composition and preparation and application thereof.
Background
Along with the rapid growth of economic society in China, fire disasters frequently occur day by day, and how to effectively prevent and control the fire disasters becomes very important research content, and at present, the fire extinguishing agents commonly used at home and abroad comprise water-based fire extinguishing agents, foam extinguishing agents, dry powder fire extinguishing agents, carbon dioxide fire extinguishing agents and the like.
The foam extinguishing agent is low in price and reliable, but extinguishes fire by depending on physical action, so that the fire extinguishing efficiency is low; the dry powder extinguishing agent has high efficiency and high extinguishing speed, but is easy to cause reburning, has strong suffocation effect on people and livestock, and harms the safety of people and livestock in a fire scene; the carbon dioxide extinguishing agent has the advantages of easy liquefaction, easy preparation, low cost, less pollution to the field environment, no trace after fire extinguishing and no damage to fire scene equipment, but high storage cost and high fire extinguishing concentration; the water-based fire extinguishing agent has wide sources and low cost, and can play a role in enhancing fire extinguishing by changing the physical property of water, so that the water-based fire extinguishing agent becomes a fire extinguishing agent with wider application.
However, the water-based fire extinguishing agent has the disadvantages, and has the technical problems of easy loss and low fire extinguishing efficiency, and in order to solve the problems, chinese patent document CN103505841A discloses a water-based fire extinguishing agent with curing and foaming properties, which comprises the following components in parts by weight: 5-40 parts of organic or inorganic anti-burning material capable of solidifying and foaming after being heated; 0.1-2 parts of a surfactant; 0.1-1 part of water-soluble thickening agent; 57-94 parts of water, wherein the surfactant comprises at least one of alkyl sulfate, alkylbenzene sulfonate and fatty alcohol-polyoxyethylene ether; the fire extinguishing agent is not easy to lose due to the characteristics of solidification and foaming, the fire extinguishing efficiency is enhanced, however, the organic or inorganic anti-burning material which can be solidified and foamed after being heated in the fire extinguishing agent is not environment-friendly, the cooling effect of the fire extinguishing agent in the fire extinguishing process is not obvious, the cooling process is prolonged, and the loss of lives and properties is increased.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical problem of poor cooling effect of the water-based fire extinguishing agent in the prior art, and provide an environment-friendly high-efficiency water-based fire extinguishing agent composition which is safe and environment-friendly and has enough fire extinguishing speed, and preparation and application thereof.
The invention discloses a fire extinguishing agent composition, which comprises the following components in percentage by mass: 2.5-3.5 wt% of surfactant, 2.5-3.5 wt% of foam stabilizer, 1.5-2.5 wt% of foaming agent and the balance of water;
the surfactant comprises a fluorocarbon surfactant and a hydrocarbon surfactant, the mass ratio of the fluorocarbon surfactant to the hydrocarbon surfactant is 1 (0.5-2), the hydrocarbon surfactant comprises an anionic hydrocarbon surfactant, a zwitterionic hydrocarbon surfactant and a nonionic hydrocarbon surfactant, and the mass ratio of the hydrocarbon surfactant to the hydrocarbon surfactant is 1 (0.5-2): (0.5-2).
Preferably, the fire extinguishing agent composition comprises the following components by mass: 3-3.5 wt% of surfactant, 3-3.5 wt% of foam stabilizer, 2-2.5 wt% of foaming agent and the balance of water.
Preferably, the anionic hydrocarbon surfactant comprises one or two of stearic acid and sodium dodecyl benzene sulfonate, the zwitterionic hydrocarbon surfactant comprises one or two of lecithin and cocamidopropyl betaine, and the nonionic hydrocarbon surfactant comprises at least one of alkyl glycoside APG, polysorbate and fatty glyceride.
Preferably, the foam stabilizer is silicone polyether emulsion MPS.
Preferably, the foaming agent is selected from one or two of lauryl sulfuric acid and/or sodium fatty alcohol polyoxyethylene ether sulfate AES.
The invention also discloses a preparation method of the fire extinguishing agent composition, which comprises the following steps:
respectively mixing a surfactant and a foam stabilizer with water to form a homogeneous surfactant solution and a foam stabilizer solution;
mixing the foam stabilizer solution with the surfactant to form a clear and uniform mixed solution;
and mixing a foaming agent with the mixed solution to obtain the fire extinguishing agent composition.
Preferably, the surfactant solution is prepared by adding the surfactant into water, and stirring at 80-100rpm for 20-50min to dissolve to form a homogeneous surfactant solution.
Preferably, the preparation method of the foam stabilizer solution comprises the steps of adding the foam stabilizer into water, and stirring at 80-100rpm for 20-50min to dissolve the foam stabilizer to obtain the foam stabilizer solution.
Preferably, during the mixing process of the foam stabilizer solution and the surfactant solution, stirring at 80-100rpm for 20-50min to form a clear and uniform mixed solution.
Preferably, the foaming agent is stirred at 55-60rpm for 10-15min, added into the mixed solution of the surfactant solution and the foam stabilizer solution, and stirred at 80-100rpm for 20-50min to obtain the fire extinguishing agent composition.
The technical scheme of the invention has the following advantages:
1. the fire extinguishing agent composition comprises 2.5-3.5 wt% of surfactant, 2.5-3.5 wt% of foam stabilizer, 1.5-2.5 wt% of foaming agent and the balance of water; the surfactant comprises a fluorocarbon surfactant and a hydrocarbon surfactant which are compounded in a mass ratio of 1 (0.5-2), and the hydrocarbon surfactant comprises an anionic hydrocarbon surfactant, a zwitterionic surfactant and a nonionic surfactant in a mass ratio of 1 (0.5-2) to (0.5-2). Fluorocarbon chains have excellent hydrophobicity and oleophobicity, the surface activity is high, the chemical stability and the thermal stability are good, the use dosage of the fluorocarbon surfactants is reduced, the cost is reduced, the environment is benefited, three kinds of hydrocarbon surfactants are applied at the same time, the fire extinguishing agent composition can have better fire extinguishing efficiency and faster fire extinguishing speed, the foam liquid discharging time can be prolonged, the stability of a fire extinguishing system is increased, and the fire extinguishing agent composition is not easy to lose.
The foam stabilizer is used for reducing the repulsive force of anionic groups of the liquid film anionic surfactant so as to realize foam stabilization, so that the molecules of the surfactant are orderly distributed in the liquid film of the bubbles, the foam is endowed with good elasticity and self-repairing capability, and the prepared fire extinguishing agent composition has fine and stable foam.
The fire extinguishing agent composition is prepared by using the foaming agent which has higher surface activity and can effectively reduce the surface tension of liquid to form foam, and the fire extinguishing agent composition with rich, fine and stable foam is prepared under the assistance of the surfactant and the foam stabilizer, so that a fire can be quickly extinguished, the time is saved, and the life and property safety is protected to the greatest extent.
2. The fire extinguishing agent composition is characterized in that the anionic hydrocarbon surfactant comprises one or two of stearic acid and sodium dodecyl benzene sulfonate, the zwitterionic surfactant comprises one or two of lecithin and cocamidopropyl betaine, the nonionic surfactant comprises at least one of alkyl glycoside APG, polysorbate and fatty glyceride, the foam stabilizer is a silicone polyether emulsion, the foaming agent is selected from sodium dodecyl sulfate or fatty alcohol polyoxyethylene ether sodium sulfate (AES), the matching property between the reagents is good, the fire extinguishing agent composition with abundant, fine and stable foams is prepared, and the fire extinguishing agent composition has good fire extinguishing efficiency and fast fire extinguishing speed.
3. The fire extinguishing agent composition is mixed under the condition of slow stirring to form the fire extinguishing agent composition, and the preparation method is simple, easy for industrial production and good in practicability.
Detailed Description
The following examples are provided to further understand the present invention, not to limit the scope of the present invention, but to provide the best mode, not to limit the content and the protection scope of the present invention, and any product similar or similar to the present invention, which is obtained by combining the present invention with other prior art features, falls within the protection scope of the present invention.
The examples do not show the specific experimental steps or conditions, and can be performed according to the conventional experimental steps described in the literature in the field. The reagents or instruments used are not indicated by manufacturers, and are all conventional reagent products which can be obtained commercially.
Example 1
The embodiment discloses a preparation method of a fire extinguishing agent composition, which comprises the following steps:
in a reaction kettle, 460kg of water is sequentially added with 12.5kg of DuPont fluorocarbon surfactant 1115, 6.25kg of stearic acid, 3.125kg of cocamidopropyl betaine and 3.125kg of alkyl glycoside APG0810, and the mixture is stirred at 80rpm for 20min to be dissolved to form homogeneous phase surfactant solution;
adding 35kg of silicone resin polyether emulsion MPS into 460kg of water, stirring at 80rpm for 20min, and dissolving to obtain a foam stabilizer solution;
adding the foam stabilizer solution into the surfactant solution, stirring at 80rpm for 20min, and dissolving to form a clear and uniform mixed solution;
20kg of sodium dodecyl sulfate is stirred at 60rpm for 10min, added into the mixed solution and stirred at 80rpm for 50min to be dissolved to obtain the fire extinguishing agent composition.
Example 2
The embodiment discloses a preparation method of a fire extinguishing agent composition, which comprises the following steps:
in a reaction kettle, 460kg of water is sequentially added with 20kg of DuPont fluorocarbon surfactant 1115, 6kg of stearic acid, 1kg of cocamidopropyl betaine, 2kg of lecithin and 3kg of alkyl glycoside APG0810, and the mixture is stirred at 100rpm for 30min to be dissolved to form homogeneous phase surfactant solution;
adding 30kg of silicone polyether emulsion (MPS) into 460kg of water, stirring at 100rpm for 30min, and dissolving to obtain a foam stabilizer solution;
adding the foam stabilizer solution into the surfactant solution, stirring at 80rpm for 30min, and dissolving to form a clear and uniform mixed solution;
and (3) stirring 15kg of fatty alcohol-polyoxyethylene ether sodium sulfate at 55rpm for 15min, adding the mixture into the mixed solution, and stirring at 80rpm for 50min to dissolve the mixture to obtain the fire extinguishing agent composition.
Example 3
The embodiment discloses a preparation method of a fire extinguishing agent composition, which comprises the following steps:
sequentially adding 10kg of DuPont fluorocarbon surfactant 1115, 5kg of sodium dodecyl benzene sulfonate, 5kg of cocamidopropyl betaine, 2kg of alkyl glycoside APG0810 and 3kg of fatty acid glyceride into 460kg of water in a reaction kettle, and stirring at 100rpm for 50min to dissolve to form a homogeneous surfactant solution;
adding 30kg of silicone polyether emulsion (MPS) into 460kg of water, stirring at 100rpm for 50min, and dissolving to obtain a foam stabilizer solution;
adding the foam stabilizer solution into the surfactant solution, stirring at 80rpm for 30min, and dissolving to form a clear and uniform mixed solution;
stirring 15kg of sodium dodecyl sulfate and 10kg of sodium fatty alcohol-polyoxyethylene ether sulfate at 60rpm for 10min, adding into the mixed solution, and stirring at 80rpm for 50min to dissolve to obtain the fire extinguishing agent composition.
Example 4
The embodiment discloses a preparation method of a fire extinguishing agent composition, which comprises the following steps:
in a reaction kettle, 460kg of water is sequentially added with 10kg of DuPont fluorocarbon surfactant 1115, 5kg of sodium dodecyl benzene sulfonate, 5kg of stearic acid, 5kg of cocamidopropyl betaine, 3kg of alkyl glycoside APG0810, 1kg of polysorbate and 1kg of fatty glyceride, and the mixture is stirred at 80rpm for 30min to be dissolved to form homogeneous surfactant solution;
adding 25kg of silicone polyether emulsion (MPS) into 460kg of water, stirring at 80rpm for 30min, and dissolving to obtain a foam stabilizer solution;
adding the foam stabilizer solution into the surfactant solution, stirring at 80rpm for 20min, and dissolving to form a clear and uniform mixed solution;
and stirring 25kg of sodium fatty alcohol polyoxyethylene ether sulfate (AES) at 60rpm for 10min, adding the mixture into the mixed solution, and stirring at 80rpm for 50min to dissolve to obtain the fire extinguishing agent composition.
Example 5
The embodiment discloses a preparation method of a fire extinguishing agent composition, which comprises the following steps:
in a reaction kettle, 460kg of water is sequentially added with 20kg of DuPont fluorocarbon surfactant 1115, 2kg of stearic acid, 4kg of cocamidopropyl betaine and 4kg of alkyl glycoside APG0810, and stirred at 80rpm for 30min to be dissolved to form homogeneous phase surfactant solution;
adding 30kg of silicone polyether emulsion (MPS) into 460kg of water, stirring at 80rpm for 30min, and dissolving to obtain a foam stabilizer solution;
adding the foam stabilizer solution into the surfactant solution, stirring at 80rpm for 20min, and dissolving to form a clear and uniform mixed solution;
20kg of sodium dodecyl sulfate is stirred at 60rpm for 10min, added into the mixed solution and stirred at 80rpm for 50min to be dissolved to obtain the fire extinguishing agent composition.
Comparative example 1
The comparative example discloses a method for preparing a fire extinguishing agent composition, comprising the following steps:
in a reaction kettle, 460kg of water is sequentially added with 10kg of DuPont fluorocarbon surfactant 1115 and 15kg of cocamidopropyl betaine, and the mixture is stirred at 80rpm for 20min to be dissolved to form a homogeneous surfactant solution;
adding 35kg of silicone polyether emulsion (MPS) into 460kg of water, stirring at 80rpm for 20min, and dissolving to obtain a foam stabilizer solution;
adding the foam stabilizer solution into the surfactant solution, stirring at 80rpm for 20min, and dissolving to form a clear and uniform mixed solution;
20kg of sodium dodecyl sulfate is stirred at 60rpm for 10min, added into the mixed solution and stirred at 80rpm for 50min to be dissolved to obtain the fire extinguishing agent composition.
Comparative example 2
The embodiment discloses a preparation method of a fire extinguishing agent composition, which comprises the following steps:
in a reaction kettle, 475kg of water is sequentially added with 10kg of DuPont fluorocarbon surfactant 1115, 5kg of cocamidopropyl betaine and 10kg of alkyl glycoside APG0810, and the mixture is stirred at 80rpm for 20min to be dissolved to form homogeneous phase surfactant solution;
adding 15kg of silicone resin polyether emulsion (MPS) into 475kg of water, stirring at 80rpm for 20min, and dissolving to obtain a foam stabilizer solution;
adding the foam stabilizer solution into the surfactant solution, stirring at 80rpm for 20min, and dissolving to form a clear and uniform mixed solution;
10kg of sodium dodecyl sulfate is stirred at 60rpm for 10min, added into the mixed solution and stirred at 80rpm for 50min to be dissolved to obtain the fire extinguishing agent composition.
Comparative example 3
The comparative example 3 is pure water.
Test example 1
Fire extinguishing compositions were prepared as described in examples 1-5 and comparative examples 1-3, respectively, and mixed with water to make 5 tons of a 6% solution by mass fraction, which were introduced into 18 tons of heavy duty foam water tank foam cars, respectively, with a hose model of 65mm type linerless hose, a straight jet, a car pump pressure of 5kg, and the total amount of spray, the amount of spray applied and the flow rate measured are shown in table 1.
TABLE 1 results of examining the spray conditions of examples 1 to 5 and comparative examples 1 to 3
And (4) test conclusion: the fire extinguishing agent composition has better flow rate, and the emission amount of the fire extinguishing agent composition during fire extinguishing is increased.
Test example 2
Fire extinguishing compositions were prepared as described in examples 1-5 and comparative examples 1-3, respectively, and mixed with water to make 5 tons of a 6% solution by mass fraction, which were introduced into 18 tons of heavy duty foam water tank foam cars, respectively, with a hose model of 65mm type linerless hose, a straight jet, a car pump pressure of 8 kg, and the total amount of spray, the amount of spray applied and the flow rate measured are shown in table 2.
TABLE 2 results of examining the spray conditions of examples 1 to 5 and comparative examples 1 to 3
And (4) test conclusion: the fire extinguishing agent composition has better flow rate, and the emission amount of the fire extinguishing agent composition during fire extinguishing is increased.
Test example 3
The fire extinguishing effect test method for the cotton as the comburent comprises the following steps: putting 200kg of cotton into 2 piles at 25 ℃, pouring 20L of diesel oil and 30L of gasoline into each pile of 100kg (in a square shape), pre-burning for 3min to enable the temperature to reach about 1300 ℃, starting to extinguish fire at the same time and timing, respectively preparing fire extinguishing agent compositions according to the methods of examples 1-5 and comparative examples 1-3, mixing the fire extinguishing agent compositions with water to prepare solutions with mass fractions of 6%, spraying cotton sparks by direct current, recording the temperature of the cotton at the same time until the open fire is extinguished, and testing the temperature once every 5 s;
the fire extinguishing effect test method for the tires with the comburent comprises the following steps: placing 200 same tires into 2 piles at 25 ℃, 20 piles and 5 piles, pouring 20L diesel oil and 30L gasoline, pre-burning for 5min to enable the temperature to reach about 1300 ℃, starting to extinguish fire at the same time and timing, preparing fire extinguishing agent compositions according to the methods of examples 1-5 and comparative examples 1-3, mixing the fire extinguishing agent compositions with water to prepare solutions with mass fraction of 6%, spraying tire fire in a direct current mode, recording the temperature of the tires at the same time until the open fire is extinguished, and testing the temperature once every 5 s;
the test results are described in tables 3 and 4 below.
TABLE 3 temperature lowering Effect of fire extinguishing agent compositions of examples 1-5, comparative examples 1-3 on extinguishing cotton fire and tire fire
And (4) test conclusion: the application the fire extinguishing agent composition has faster cooling speed when putting out cotton fire and tire fire, can show improvement cooling efficiency.
Test example 4
Fire extinguishing agent compositions were prepared as described in examples 1 to 5 and comparative examples 1 to 3, respectively, and prepared into 5 tons of aqueous solution with a mass fraction of 3% by a fire engine proportioner, introduced into 18 tons of heavy duty foam water tank foam vehicles, respectively, with a hose model of 65mm type linerless hose, a jet form of direct flow in blossom, a vehicle pump pressure of 6kg, for extinguishing cotton fires and tire fires,
wherein the cotton is added with 10L of oil by fire and pre-burned for 6 minutes;
the tire fuel amount is 5L of gasoline, 20L of diesel oil and 200 tires, and the pre-combustion lasts for 3 minutes;
the fire extinguishing effect was evaluated as described in small Table 4.
TABLE 4 evaluation of fire extinguishing Effect of the fire extinguishing agent compositions described in examples 1 to 5, comparative examples 1 to 3
And (4) test conclusion: the application discloses fire extinguishing agent composition when putting out cotton fire and tire fire, the speed of putting out a fire is fast, and the fire extinguishing agent quantity is few, and is with low costs.
Test example 5
The tests were carried out according to the fire extinguishing experimental procedure described in the standard of GB17835-2008 "Water-based fire extinguishing Agents".
A steel oil pan was used, and the dimensions were 5.3 m.times.1.9 m.times.0.28 m (inner diameter. times.depth. times.wall thickness).
The number of oil pans was 2, and the amount of gasoline in each oil pan was 200L.
The fire extinguishing agent composition and the fluoroprotein foam extinguishing agent (prepared by adding 3% of fluorocarbon surfactant on the basis of the fluoroprotein foam extinguishing agent) composition, which are described in example 1, are adopted, an 18-ton heavy-duty water tank foam truck is adopted, a solution with the mass fraction of 6% is prepared by a fire truck proportioning mixer, a 65mm type unlined water belt is adopted, the truck pump pressures of 6kg and 8 kg are respectively adopted, and the spray jet flow and a foam pipe gun are respectively adopted to extinguish fire on an oil pan. The fire extinguishing effect evaluation is shown in table 5.
TABLE 5 Fluoroprotein foam fire extinguishing agent and evaluation of fire extinguishing Effect of fire extinguishing agent composition described in example 1 of the present application
Test example 6
The tests were carried out according to the fire extinguishing experimental procedure described in the standard of GB17835-2008 "Water-based fire extinguishing Agents".
The diameter of the oil tank is 15m, 2t of gasoline and 1t of diesel oil are added, a 24m high-pressure jet fire truck and a 65mm type unlined water hose are adopted, a solution with the mass fraction of 3% is prepared by a fire truck proportional mixer, the pressure of the truck pump is 8 kilograms in a spray direct-current mode, the fire of the oil tank is extinguished, secondary pre-burning and extinguishment are carried out after primary extinguishment, the primary pre-burning time is 45s, the jet fire extinguishing time is 60s, the secondary pre-burning time is 240s, and the jet time is 50s, and the actual fire extinguishing time is obtained according to video and is shown in table 6.
TABLE 6 evaluation of tank fire extinguishing Effect of the fire extinguishing agent compositions described in examples 1 to 5 and comparative examples 1 to 3
And (4) test conclusion: the application discloses fire extinguishing agent composition when putting out oil tank fire, the time of putting out a fire is short, and fire extinguishing efficiency is high.
It is to be understood that the above examples are illustrative only for the purpose of clarity of description and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (10)
1. A fire extinguishing agent composition, characterized by comprising, based on the total mass of the fire extinguishing agent composition: 2.5-3.5 wt% of surfactant, 2.5-3.5 wt% of foam stabilizer, 1.5-2.5 wt% of foaming agent and the balance of water;
the surfactant comprises a fluorocarbon surfactant and a hydrocarbon surfactant, the mass ratio of the fluorocarbon surfactant to the hydrocarbon surfactant is 1 (0.5-2), the hydrocarbon surfactant comprises an anionic hydrocarbon surfactant, a zwitterionic hydrocarbon surfactant and a nonionic hydrocarbon surfactant, and the mass ratio of the hydrocarbon surfactant to the hydrocarbon surfactant is 1 (0.5-2): (0.5-2).
2. The fire suppressant composition of claim 1, comprising the following ingredients, based on the total mass of the fire suppressant composition: 3-3.5 wt% of surfactant, 3-3.5 wt% of foam stabilizer, 2-2.5 wt% of foaming agent and the balance of water.
3. A fire extinguishing composition as recited in claim 1 or claim 2, wherein the anionic hydrocarbon surfactant comprises one or both of stearic acid and sodium dodecylbenzenesulfonate, the zwitterionic hydrocarbon surfactant comprises one or both of lecithin and cocamidopropyl betaine, and the nonionic hydrocarbon surfactant comprises at least one of an alkyl glycoside APG, a polysorbate, and a fatty acid glyceride.
4. Fire extinguishing agent composition according to any one of claims 1-3, characterized in that the foam stabilizer is a silicone polyether emulsion MPS.
5. Fire extinguishing agent composition according to any one of claims 1 to 4, characterized in that the foaming agent is selected from one or both of dodecyl sulfuric acid and or sodium fatty alcohol polyoxyethylene ether sulfate AES.
6. A method of preparing a fire extinguishing composition according to any one of claims 1 to 5, comprising the steps of:
respectively mixing a surfactant and a foam stabilizer with water to form a homogeneous surfactant solution and a foam stabilizer solution;
mixing the foam stabilizer solution with the surfactant to form a clear and uniform mixed solution;
and mixing a foaming agent with the mixed solution to obtain the fire extinguishing agent composition.
7. The method of claim 6, wherein the surfactant solution is prepared by adding the surfactant to water and stirring at 80-100rpm for 20-50min to form a homogeneous surfactant solution.
8. The method for preparing a fire extinguishing agent composition according to claim 6 or 7, wherein the foam stabilizer solution is prepared by adding the foam stabilizer into water and stirring at 80-100rpm for 20-50min to obtain the foam stabilizer solution.
9. The method for preparing a fire extinguishing agent composition according to any one of claims 6 to 8, wherein during the mixing of the foam stabilizer solution and the surfactant solution, the mixture is stirred at 80-100rpm for 20-50min to form a clear and uniform mixed solution.
10. The method for preparing a fire extinguishing agent composition according to any one of claims 6 to 9, wherein the foaming agent is stirred at 55-60rpm for 10-15min, added to the mixed solution of the surfactant solution and the foam stabilizer solution, and stirred at 80-100rpm for 20-50min to obtain the fire extinguishing agent composition.
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| CN112023325A (en) * | 2020-07-21 | 2020-12-04 | 海天消防科技股份有限公司 | Aqueous film-forming foam extinguishing agent and preparation method thereof |
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