Aqueous fire extinguishing agent and method for its production

Abstract

The present application relates to the technical field of fire extinguishing agent, and provides a water-based fire extinguishing agent and a preparation method thereof.The water-based fire extinguishing agent comprises organic solvent, amphoteric surfactant foaming agent, anion foaming agent, C6 fluorocarbon surfactant, penetrant, ammonium polyphosphate and water; wherein the C6 fluorocarbon surfactant greatly reduces the toxicity, biological accumulation and environmental persistence of the fluorocarbon surfactant, and does not produce any hazardous environmental substances after use; the ammonium polyphosphate in the present application improves the solubility of the water-based fire extinguishing agent, improves the fire-retardant effect of the water-based fire extinguishing agent, and does not form a precipitate during long-term storage.The water does not contain ionic components, can prolong the shelf life of the water-based fire extinguishing agent, can reduce the product's own conductivity, can rapidly destroy the surface tension of water molecules, and can simultaneously refine the water molecules in a manner that forms tiny, non-adherent foam to block the spread of electricity, thereby achieving the effect of extinguishing 36KV or below live fires.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire extinguishing agent, and particularly relates to a water-based fire extinguishing agent and a preparation method thereof. BACKGROUND

[0002] The water-based fire extinguishing agent is water added with additives to increase the fire extinguishing function of water. The water solution of the water-based fire extinguishing agent is filled with a large amount of gas to form countless bubbles through chemical and physical actions, which are covered on the surface of flammable liquid, so as to achieve the purpose of extinguishing fire by taking away the heat of the liquid and making the flammable liquid not easy to contact with air. The fluorocarbon surfactant is an indispensable additive in the water-based fire extinguishing agent. In the prior art, the chemical formula of the fluorocarbon surfactant contains eight carbon atoms, which will produce perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) after use. PFOS is the most difficult to decompose organic pollutants, which has been widely restricted in export product materials; PFOA has carcinogenic effect, which has been listed in the 2B carcinogenic list.

[0003] Therefore, it is necessary to provide a green and environmentally friendly water-based fire extinguishing agent which will not produce PFOS and PFOA after use. SUMMARY

[0004] The present application provides a water-based fire extinguishing agent and a preparation method thereof, so as to solve or at least partially solve the defects in the prior art.

[0005] In a first aspect, the present application provides a water-based fire extinguishing agent, which comprises the following components by mass fraction: 0.5-2% of an organic solvent, 4-20% of an amphoteric surfactant foaming agent, 2-10% of an anionic foaming agent, 2-10% of a C6 fluorocarbon surfactant, 1-5% of a penetrating agent, 5-30% of ammonium polyphosphate, and 23-85% of water.

[0006] Preferably, the water-based fire extinguishing agent, the organic solvent comprises at least one of diethylene glycol monobutyl ether, ethylene glycol dimethyl ether, and n-butanol.

[0007] Preferably, the water-based fire extinguishing agent, the amphoteric surfactant foaming agent comprises at least one of alkyl polyglycoside, cocamidopropyl betaine, and cocoyl monoethanolamide.

[0008] Preferably, the water-based fire extinguishing agent, the anionic foaming agent comprises at least one of sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, and fatty alcohol polyoxyethylene ether.

[0009] Preferably, the water-based fire extinguishing agent, the C6 fluorocarbon surfactant comprises at least one of C6 fluorocarbon surfactant 1460 and C6 fluorocarbon surfactant 1470.

[0010] Preferably, the water-based extinguishing agent, the penetrating agent is penetrating agent JFC.

[0011] Preferably, the water-based extinguishing agent comprises the following components by mass fraction: organic solvent 2%, amphoteric surfactant foaming agent 20%, anionic foaming agent 10%, C6 fluorocarbon surfactant 10%, penetrating agent 5%, ammonium polyphosphate 30%, and water 23%.

[0012] In a second aspect, the present application further provides a preparation method of the above-mentioned water-based extinguishing agent, comprising the following steps:

[0013] The organic solvent, the amphoteric surfactant foaming agent, the anionic foaming agent, the C6 fluorocarbon surfactant, the penetrating agent, the ammonium polyphosphate, and the water are stirred and mixed to obtain the water-based extinguishing agent.

[0014] Preferably, the preparation method of the water-based extinguishing agent comprises the following steps:

[0015] The ammonium polyphosphate is added to water, stirred, then the organic solvent, the amphoteric surfactant foaming agent, and the anionic foaming agent are added and continue to be stirred, finally the C6 fluorocarbon surfactant and the penetrating agent are added and stirred again to obtain the water-based extinguishing agent.

[0016] Preferably, the preparation method of the water-based extinguishing agent comprises the following steps:

[0017] The ammonium polyphosphate is added to water, stirred at a speed of 6000-8000 r / min for 20-40 min, then the organic solvent, the amphoteric surfactant foaming agent, and the anionic foaming agent are added and stirred at a speed of 4000-6000 r / min for 30-50 min, finally the C6 fluorocarbon surfactant and the penetrating agent are added and stirred at a speed of 2000-4000 r / min for 30-50 min to obtain the water-based extinguishing agent.

[0018] The water-based extinguishing agent of the present application has the following beneficial effects compared with the prior art:

[0019] 1. The water-based extinguishing agent of the present application comprises organic solvent, amphoteric surfactant foaming agent, anionic foaming agent, C6 fluorocarbon surfactant, penetrant, ammonium polyphosphate and water; wherein, the C6 base environmentally friendly fluorocarbon surfactant is used as a substitute for long fluorocarbon chain fluorocarbon surfactant (mainly PFOA and PFOS), which greatly reduces the toxicity, bioaccumulation and environmental persistence of fluorocarbon surfactant, and does not produce any harmful environmental substances after use; at the same time, the C6 fluorocarbon surfactant can reduce the surface tension of the extinguishing agent, so that the foam flow rate is accelerated, and the purpose of rapid extinguishing is achieved; the ammonium polyphosphate in the present application improves the solubility of the water-based extinguishing agent, improves the fire-retardant effect of the water-based extinguishing agent, and does not form a precipitate during long-term storage. The water in the present application does not contain ionic components, which can prolong the shelf life of the water-based extinguishing agent, and the deionized water can reduce the product's own conductivity and can quickly destroy the surface tension of water molecules and at the same time refine the water molecules in a way that forms its tiny non-adherent foam to prevent the spread of electricity, achieving the effect of extinguishing 36KV or less live fires. The water-based extinguishing agent of the present application has a foaming ratio of 5-8.5, a fire extinguishing time of 21-55s, and a burn resistance time of 6-15min, and has good extinguishing performance;

[0020] 2. The water-based extinguishing agent of the present application comprises the following components by mass fraction: organic solvent 2%, amphoteric surfactant foaming agent 20%, anionic foaming agent 10%, C6 fluorocarbon surfactant 10%, penetrant 5%, ammonium polyphosphate 30%, and water 23%; wherein, the organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl glycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, and the penetrant is penetrant JFC; when the above specific mass fraction of components is used, the water-based extinguishing agent has the best extinguishing effect, the foaming ratio of the extinguishing agent is 8.5, the fire extinguishing time is 21s, and the burn resistance time is 15min. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] The following are described in detail, respectively. It should be noted that the order of the following embodiments is not as a limitation on the preferred order of the embodiments. In addition, in the description of the present application, the term "comprising" means "including but not limited to". Various embodiments of the present application can exist in a range of forms; it should be understood that the description in a range of forms is only for the convenience and brevity, and should not be understood as a hard limit on the scope of the present application; therefore, it should be considered that the range described has been specifically disclosed all possible sub-ranges and single values within the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which applies to any range. In addition, whenever a numerical range is indicated herein, it refers to any cited number (fraction or integer) within the indicated range.

[0023] The present application provides a water-based extinguishing agent, comprising the following components by mass fraction: organic solvent 0.5-2%, amphoteric surfactant foaming agent 4-20%, anionic foaming agent 2-10%, C6 fluorocarbon surfactant 2-10%, penetrant 1-5%, ammonium polyphosphate 5-30%, and water 23-85%.

[0024] It should be noted that the water-based extinguishing agent of the present application comprises organic solvent, amphoteric surfactant foaming agent, anionic foaming agent, C6 fluorocarbon surfactant, penetrant, ammonium polyphosphate and water; wherein the C6 fluorocarbon surfant is used as a key raw material and will not produce any harmful environmental substances after use; traditional fluorocarbon surfactants mainly refer to two types of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS), but relevant studies have shown that these compounds have high toxicity, environmental persistence and biological accumulation, and pose a serious pollution to the environment; while the C6 environmentally friendly fluorocarbon surfactant, as a substitute for long fluorocarbon chain fluorocarbon surfactants (mainly PFOA and PFOS), greatly reduces the toxicity, biological accumulation and environmental persistence of fluorocarbon surfactants; at the same time, the C6 fluorocarbon surfactant in the present application can reduce the surface tension of the extinguishing agent, thereby accelerating the foam flow rate and achieving the purpose of rapid extinguishing; the ammonium polyphosphate in the present application improves the solubility of the water-based extinguishing agent and enhances the fire-retardant effect of the water-based extinguishing agent, and does not form a precipitate during long-term storage. The water in the present application does not contain ionic components (i.e. deionized water), which can extend the shelf life of the water-based extinguishing agent, and the deionized water can also reduce the product's own electrical conductivity and in a way that can rapidly destroy the surface tension of water molecules and at the same time refine the water molecules, forming tiny non-adherent foam to block the spread of electricity, achieving the effect of extinguishing 36KV or below live fires.

[0025] In some embodiments, the organic solvent includes at least one of diethylene glycol monobutyl ether, ethylene glycol dimethyl ether, n-butanol.

[0026] The diethylene glycol monobutyl ether, ethylene glycol dimethyl ether, and n-butanol in the present application help to dissolve in the system.

[0027] In some embodiments, the amphoteric surfactant foaming agent includes at least one of alkyl polyglucoside, cocamidopropyl betaine, and cocoyl monoethanolamide.

[0028] Specifically, the alkyl polyglucoside refers to alkyl polyglucoside (Alkyl Polyglucoside. APG for short) synthesized from glucose and fatty alcohol; the alkyl polyglucoside has good compatibility and can be compounded with various ionic and non-ionic surfactants to produce a synergistic effect; the alkyl polyglucoside in the present application can generate foam in the system to isolate oxygen; at the same time, the alkyl polyglucoside can improve the occurrence rate of foam as a whole and improve the quality of foam.

[0029] Specifically, the cocamidopropyl betaine is an amphoteric ionic surfactant, which has excellent stability under acidic and alkaline conditions and exhibits anion and cation, respectively, and is often used with anionic, cationic, and non-ionic surfactants, which has good compatibility. It has little irritation, is easily soluble in water, is stable to acid and alkali, has much foam, strong detergency, and excellent thickening, softening, bactericidal, antistatic, and hard water resistance. The cocamidopropyl betaine is prepared from coconut oil, which is condensed with N, N dimethylpropylene diamine to generate PKO and then is quaternized with sodium chloroacetate (prepared from sodium carbonate and chloroacetic acid); the cocamidopropyl betaine in the present application can generate foam in the system to isolate oxygen; at the same time, the cocamidopropyl betaine can improve the occurrence rate of foam as a whole and improve the quality of foam.

[0030] Specifically, the cocoyl monoethanolamide has a chemical formula of C 14 H 29 NO2, is a yellow viscous liquid, and belongs to a non-ionic surfactant. It has strong foaming property and good foam stability. It can be compounded with various surfactants to strengthen the cleaning effect. The cocoyl monoethanolamide in the present application can generate foam in the system to isolate oxygen; at the same time, the cocoyl monoethanolamide can improve the occurrence rate of foam as a whole and improve the quality of foam, so that it is easy to flow and is not easily affected by the external environment.

[0031] In some embodiments, the anionic foaming agent includes at least one of sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, and fatty alcohol polyoxyethylene ether.

[0032] Among them, the fatty alcohol polyoxyethylene ether (AEO), also known as polyoxyethylene fatty alcohol ether, is a non-ionic surfactant. This type of surfactant is an ether condensed by polyethylene glycol (PEG) and fatty alcohol.

[0033] Specifically, sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, and fatty alcohol polyoxyethylene ether can act as anionic foaming agents to achieve the anti-reburning effect.

[0034] In some embodiments, the C6 fluorocarbon surfactant includes at least one of C6 fluorocarbon surfactant 1460 and C6 fluorocarbon surfactant 1470.

[0035] Specifically, the C6 fluorocarbon surfactant of the present application is purchased from Shanghai Hui Ping Chemical Co., Ltd., and is at least one of C6 fluorocarbon surfactant 1460 and C6 fluorocarbon surfactant 1470.

[0036] In some embodiments, the penetrating agent is penetrating agent JFC.

[0037] Specifically, the chemical composition of the penetrating agent JFC is fatty alcohol polyoxyethylene ether. In the present application, the penetrating agent JFC acts as an anionic organic solvent to help the surfactant reduce the surface tension.

[0038] In the present application, the penetrating agent JFC is a commercially available product. Specifically, the penetrating agent JFC in the present application is purchased from Wuhan Jiyesheng Chemical Co., Ltd.

[0039] Specifically, ammonium polyphosphate is also known as polyphosphate or condensed ammonium polyphosphate (APP). Ammonium polyphosphate is a long-chain polymer without branching, and the molecular structure general formula is (NH4) n+2 P n O 3n+1 In the present application, ammonium polyphosphate is a commercially available product.

[0040] In some embodiments, the aqueous fire extinguishing agent of the present application includes the following components with the following mass fractions: organic solvent 2%, amphoteric surfactant foaming agent 20%, anionic foaming agent 10%, C6 fluorocarbon surfactant 10%, penetrating agent 5%, ammonium polyphosphate 30%, and water 23%. The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl glycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, and the penetrating agent is penetrating agent JFC. When the above specific mass fractions of components are used, the aqueous fire extinguishing agent has the optimal fire extinguishing effect, the foaming multiple of the fire extinguishing agent is 8.5, the fire extinguishing time is 21s, and the anti-burning time is 15min.

[0041] The water-based extinguishing agent of the present application comprises organic solvent, amphoteric surfactant foaming agent, anionic foaming agent, C6 fluorocarbon surfactant, penetrant, ammonium polyphosphate, water; by adjusting the mass fraction of each component, the foaming multiple of the extinguishing agent is 5-8.5, the extinguishing time is 21-55s, the anti-burning time is 6-15min, and the extinguishing agent has good extinguishing performance.

[0042] Based on the same inventive concept, the present application also provides a preparation method of the above-mentioned water-based extinguishing agent, comprising the following steps:

[0043] S1, the organic solvent, amphoteric surfactant foaming agent, anionic foaming agent, C6 fluorocarbon surfactant, penetrant, ammonium polyphosphate and water are stirred and mixed to obtain the water-based extinguishing agent.

[0044] In some embodiments, the preparation method of the water-based extinguishing agent of the present application comprises the following steps:

[0045] S1, the ammonium polyphosphate is added to water, stirred to dissolve the ammonium polyphosphate, then the organic solvent, amphoteric surfactant foaming agent, anionic foaming agent are added and stirred, finally the C6 fluorocarbon surfactant and penetrant are added and stirred again to dissolve the raw materials, thereby obtaining the water-based extinguishing agent.

[0046] In some embodiments, the preparation method of the water-based extinguishing agent of the present application comprises the following steps:

[0047] S1, the ammonium polyphosphate is added to water, stirred at a speed of 6000-8000r / min for 20-40min, then the organic solvent, amphoteric surfactant foaming agent, anionic foaming agent are added and stirred at a speed of 4000-6000r / min for 30-50min, finally the C6 fluorocarbon surfactant and penetrant are added and stirred at a speed of 2000-4000r / min for 30-50min, thereby obtaining the water-based extinguishing agent.

[0048] The water-based extinguishing agent and the preparation method thereof of the present application are further illustrated in the following specific embodiments. This part further illustrates the content of the present application in combination with specific embodiments, but should not be understood as a limitation of the present application. If not specifically stated, the technical means adopted in the embodiments are conventional means familiar to those skilled in the art. Unless specifically stated, the reagents, methods and devices adopted in the present application are conventional reagents, methods and devices in the art.

[0049] In the following embodiments 1-10 and comparative examples 1-2, the purchase manufacturers and models of each raw material are shown in Table 1.

[0050] Table 1 - Purchase manufacturer and model information of each raw material

[0051] Raw material Manufacturer Model Diethylene glycol monobutyl ether Nanjing Gutian Chemical Co., Ltd. DGBE Alkyl polyglycoside Yangzhou Chenhua New Material Co., Ltd. APG0810 Sodium dodecylbenzenesulfonate Dongming Jijin Chemical Co., Ltd. K12 C6 fluorocarbon surfactant Shanghai Huiping Chemical Co., Ltd. 1470 Penetrant Wuhan Jiyesheng Chemical Co., Ltd. JFC Ammonium polyphosphate Wuhan Jiyesheng Chemical Co., Ltd. APP

[0052] Embodiment 1

[0053] The embodiment provides a water-based extinguishing agent, which comprises the following raw materials in mass fraction: organic solvent 0.5%, amphoteric surfactant foaming agent 4%, anionic foaming agent 3%, C6 fluorocarbon surfactant 2%, penetrating agent 1.5%, ammonium polyphosphate 6%, and deionized water 83%.

[0054] The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl polyglycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrating agent is penetrating agent JFC.

[0055] The embodiment further provides a preparation method of the water-based extinguishing agent, and the preparation method comprises the following steps:

[0056] S1, ammonium polyphosphate is added into water, stirring is carried out at a rotating speed of 7000 r / min for 30 min, then organic solvent, amphoteric surfactant foaming agent and anionic foaming agent are added, stirring is carried out at a rotating speed of 5000 r / min for 40 min, finally, C6 fluorocarbon surfactant and penetrating agent are added, stirring is carried out at a rotating speed of 3000 r / min for 40 min, and thus the water-based extinguishing agent is obtained.

[0057] Embodiment 2

[0058] The embodiment provides a water-based extinguishing agent, which comprises the following raw materials in mass fraction: organic solvent 1%, amphoteric surfactant foaming agent 13%, anionic foaming agent 5%, C6 fluorocarbon surfactant 5%, penetrating agent 2.5%, ammonium polyphosphate 10%, and deionized water 63.5%.

[0059] The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl polyglycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrating agent is penetrating agent JFC.

[0060] The embodiment further provides a preparation method of the water-based extinguishing agent, and the preparation method comprises the following steps:

[0061] S1, ammonium polyphosphate is added into water, stirring is carried out at a rotating speed of 7000 r / min for 30 min, then organic solvent, amphoteric surfactant foaming agent and anionic foaming agent are added, stirring is carried out at a rotating speed of 5000 r / min for 40 min, finally, C6 fluorocarbon surfactant and penetrating agent are added, stirring is carried out at a rotating speed of 3000 r / min for 40 min, and thus the water-based extinguishing agent is obtained.

[0062] Embodiment 3

[0063] The embodiment provides a water-based extinguishing agent, which comprises the following raw materials in mass fraction: organic solvent 1.5%, amphoteric surfactant foaming agent 15%, anionic foaming agent 7%, C6 fluorocarbon surfactant 7%, penetrating agent 4%, ammonium polyphosphate 15% and deionized water 50.5%;

[0064] The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl polyglycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrating agent is penetrating agent JFC.

[0065] The embodiment further provides a preparation method of the water-based extinguishing agent, and the preparation method comprises the following steps:

[0066] S1, ammonium polyphosphate is added into water, stirring is carried out at a rotating speed of 7000 r / min for 30 min, then organic solvent, amphoteric surfactant foaming agent and anionic foaming agent are added, stirring is carried out at a rotating speed of 5000 r / min for 40 min, finally, C6 fluorocarbon surfactant and penetrating agent are added, stirring is carried out at a rotating speed of 3000 r / min for 40 min, and thus the water-based extinguishing agent is obtained.

[0067] Embodiment 4

[0068] The embodiment provides a water-based extinguishing agent, which comprises the following raw materials in mass fraction: organic solvent 2%, amphoteric surfactant foaming agent 20%, anionic foaming agent 10%, C6 fluorocarbon surfactant 10%, penetrating agent 5%, ammonium polyphosphate 22% and deionized water 31%.

[0069] The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl polyglycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrating agent is penetrating agent JFC.

[0070] The embodiment further provides a preparation method of the water-based extinguishing agent, and the preparation method comprises the following steps:

[0071] S1, ammonium polyphosphate is added into water, stirring is carried out at a rotating speed of 7000 r / min for 30 min, then organic solvent, amphoteric surfactant foaming agent and anionic foaming agent are added, stirring is carried out at a rotating speed of 5000 r / min for 40 min, finally, C6 fluorocarbon surfactant and penetrating agent are added, stirring is carried out at a rotating speed of 3000 r / min for 40 min, and thus the water-based extinguishing agent is obtained.

[0072] Embodiment 5

[0073] The embodiment provides a water-based extinguishing agent, which comprises the following raw materials in mass fraction: organic solvent 0.5%, amphoteric surfactant foaming agent 5%, anionic foaming agent 2%, C6 fluorocarbon surfactant 2%, penetrating agent 1%, ammonium polyphosphate 5% and deionized water 84.5%.

[0074] The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl polyglycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrating agent is penetrating agent JFC.

[0075] The embodiment further provides a preparation method of the water-based extinguishing agent, and the preparation method comprises the following steps:

[0076] S1, ammonium polyphosphate is added into water, stirring is carried out at a rotating speed of 7000 r / min for 30 min, then organic solvent, amphoteric surfactant foaming agent and anionic foaming agent are added, stirring is carried out at a rotating speed of 5000 r / min for 40 min, finally, C6 fluorocarbon surfactant and penetrating agent are added, stirring is carried out at a rotating speed of 3000 r / min for 40 min, and thus the water-based extinguishing agent is obtained.

[0077] Embodiment 6

[0078] The embodiment provides a water-based extinguishing agent, which comprises the following raw materials in mass fraction: organic solvent 1%, amphoteric surfactant foaming agent 10%, anionic foaming agent 4%, C6 fluorocarbon surfactant 4%, penetrating agent 2%, ammonium polyphosphate 10% and deionized water 69%.

[0079] The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl polyglycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrating agent is penetrating agent JFC.

[0080] The embodiment further provides a preparation method of the water-based extinguishing agent, and the preparation method comprises the following steps:

[0081] S1, ammonium polyphosphate is added into water, stirring is carried out at a rotating speed of 7000 r / min for 30 min, then organic solvent, amphoteric surfactant foaming agent and anionic foaming agent are added, stirring is carried out at a rotating speed of 5000 r / min for 40 min, finally, C6 fluorocarbon surfactant and penetrating agent are added, stirring is carried out at a rotating speed of 3000 r / min for 40 min, and thus the water-based extinguishing agent is obtained.

[0082] Embodiment 7

[0083] The embodiment provides a water-based extinguishing agent, which comprises the following raw materials in mass fraction: organic solvent 1.5%, amphoteric surfactant foaming agent 15%, anionic foaming agent 7%, C6 fluorocarbon surfactant 6%, penetrating agent 3%, ammonium polyphosphate 20% and deionized water 47.5%.

[0084] The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl polyglycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrating agent is penetrating agent JFC.

[0085] The embodiment further provides a preparation method of the water-based extinguishing agent, which comprises the following steps:

[0086] S1, ammonium polyphosphate is added into water, stirring is carried out at a rotating speed of 7000 r / min for 30 min, then organic solvent, amphoteric surfactant foaming agent and anionic foaming agent are added, stirring is carried out at a rotating speed of 5000 r / min for 40 min, finally, C6 fluorocarbon surfactant and penetrating agent are added, stirring is carried out at a rotating speed of 3000 r / min for 40 min, and thus the water-based extinguishing agent is obtained.

[0087] Embodiment 8

[0088] The embodiment provides a water-based extinguishing agent, which comprises the following raw materials in mass fraction: organic solvent 2%, amphoteric surfactant foaming agent 20%, anionic foaming agent 10%, C6 fluorocarbon surfactant 10%, penetrating agent 5%, ammonium polyphosphate 30% and deionized water 23%.

[0089] The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl polyglycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrating agent is penetrating agent JFC.

[0090] The embodiment further provides a preparation method of the water-based extinguishing agent, which comprises the following steps:

[0091] S1, ammonium polyphosphate is added into water, stirring is carried out at a rotating speed of 7000 r / min for 30 min, then organic solvent, amphoteric surfactant foaming agent and anionic foaming agent are added, stirring is carried out at a rotating speed of 5000 r / min for 40 min, finally, C6 fluorocarbon surfactant and penetrating agent are added, stirring is carried out at a rotating speed of 3000 r / min for 40 min, and thus the water-based extinguishing agent is obtained.

[0092] Embodiment 9

[0093] The embodiment provides a water-based extinguishing agent, which comprises the following raw materials in mass fraction: organic solvent 1%, amphoteric surfactant foaming agent 10%, anionic foaming agent 4%, C6 fluorocarbon surfactant 4%, penetrating agent 2%, ammonium polyphosphate 10%, and deionized water 69%.

[0094] The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl polyglycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrating agent is penetrating agent JFC.

[0095] The embodiment further provides a preparation method of the water-based extinguishing agent, which comprises the following steps.

[0096] S1, ammonium polyphosphate is added into water, stirred at a rotating speed of 7000 r / min for 30 min, then organic solvent, amphoteric surfactant foaming agent and anionic foaming agent are added and stirred at a rotating speed of 5000 r / min for 40 min, finally, C6 fluorocarbon surfactant and penetrating agent are added and stirred at a rotating speed of 3000 r / min for 40 min, so that the water-based extinguishing agent is obtained.

[0097] Example 10

[0098] The embodiment provides a water-based extinguishing agent, which comprises the following raw materials in mass fraction: organic solvent 1.5%, amphoteric surfactant foaming agent 15%, anionic foaming agent 7%, C6 fluorocarbon surfactant 6%, penetrating agent 3%, ammonium polyphosphate 20%, and deionized water 47.5%.

[0099] The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl polyglycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrating agent is penetrating agent JFC.

[0100] The embodiment further provides a preparation method of the water-based extinguishing agent, which comprises the following steps.

[0101] S1, ammonium polyphosphate is added into water, stirred at a rotating speed of 7000 r / min for 30 min, then organic solvent, amphoteric surfactant foaming agent and anionic foaming agent are added and stirred at a rotating speed of 5000 r / min for 40 min, finally, C6 fluorocarbon surfactant and penetrating agent are added and stirred at a rotating speed of 3000 r / min for 40 min, so that the water-based extinguishing agent is obtained.

[0102] Comparative Example 1

[0103] The comparative example provides a water-based extinguishing agent, which is the same as example 9, except that no alkyl glycoside is added; that is, the water-based extinguishing agent comprises the following raw materials by mass: organic solvent, anionic foaming agent, C6 fluorocarbon surfactant, penetrant, ammonium polyphosphate, deionized water; the mass ratio of the organic solvent, the anionic foaming agent, the C6 fluorocarbon surfactant, the penetrant, the ammonium polyphosphate, and the deionized water is 1:4:4:2:10:69;

[0104] The organic solvent is diethylene glycol monobutyl ether, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrant is penetrant JFC.

[0105] The preparation method of the water-based extinguishing agent provided by the comparative example comprises the following steps:

[0106] S1, the ammonium polyphosphate is added to the water, stirred at a speed of 7000 r / min for 30 min, the organic solvent and the anionic foaming agent are then added and stirred at a speed of 5000 r / min for 40 min, and finally the C6 fluorocarbon surfactant and the penetrant are added and stirred at a speed of 3000 r / min for 40 min to obtain the water-based extinguishing agent.

[0107] Comparative example 2

[0108] The comparative example provides a water-based extinguishing agent, which is the same as example 10, except that no ammonium polyphosphate is added; the water-based extinguishing agent comprises the following raw materials: organic solvent, amphoteric surfactant foaming agent, anionic foaming agent, C6 fluorocarbon surfactant, penetrant, deionized water; the mass ratio of the organic solvent, the amphoteric surfactant foaming agent, the anionic foaming agent, the C6 fluorocarbon surfactant, the penetrant, and the deionized water is 1.5:15:7:6:3:47.5;

[0109] The organic solvent is diethylene glycol monobutyl ether, the amphoteric surfactant foaming agent is alkyl glycoside, the anionic foaming agent is sodium dodecyl benzene sulfonate, the C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470 purchased from Shanghai Hui Ping Chemical Co., Ltd., and the penetrant is penetrant JFC.

[0110] The preparation method of the water-based extinguishing agent provided by the comparative example comprises the following steps:

[0111] S1, the organic solvent, the amphoteric surfactant foaming agent, and the anionic foaming agent are added to the water, stirred at a speed of 5000 r / min for 40 min, and finally the C6 fluorocarbon surfactant and the penetrant are added and stirred at a speed of 3000 r / min for 40 min to obtain the water-based extinguishing agent.

[0112] Performance test

[0113] The foaming multiple, fire extinguishing time and burn resistance time of the water-based extinguishing agent prepared in Examples 1-8 were tested, and the results are shown in Table 2 below. The water-based extinguishing agent of the present application was tested according to GB 15308-2006.

[0114] Table 2 - Fire extinguishing time of water-based extinguishing agent prepared in different examples

[0115] Example Foaming ratio Extinguishing time (B class, s) Anti-burning time (min) Example 1 5 55 6 Example 2 6.0 45 7.5 Example 3 6.3 42 8 Example 4 6.8 38 9 Example 5 7 35 11 Example 6 7.5 30 12 Example 7 8.1 28 13 Example 8 8.5 21 15

[0116] As can be seen from Table 1, the foaming multiple of the water-based extinguishing agent prepared in the present application is 5-8.5, the fire extinguishing time is 21-55 s, and the burn resistance time is 6-15 min, which has good fire extinguishing performance.

[0117] The foaming multiple (tested according to GB 15308-2006) of the water-based extinguishing agent prepared in Example 9 and Comparative Example 1 was tested, and the results are shown in Table 3 below.

[0118] Table 3 - Foaming multiple of water-based extinguishing agent prepared in Example 9 and Comparative Example 1

[0119] Foaming ratio Comparative Example 1 4.8 Example 9 7.8

[0120] As can be seen from Table 3, the foaming multiple of the water-based extinguishing agent prepared in Comparative Example 1 without adding alkyl glycoside is 4.8; while the foaming multiple of the water-based extinguishing agent prepared in Example 9 with adding alkyl glycoside is 7.8, which shows that the addition of alkyl glycoside can further improve the foaming multiple of the extinguishing agent.

[0121] The fire extinguishing time and burn resistance time (tested according to GB 15308-2006) of the water-based extinguishing agent prepared in Example 10 and Comparative Example 2 were tested, and the results are shown in Table 4 below.

[0122] Table 4 - Fire extinguishing time and burn resistance time of water-based extinguishing agent prepared in Example 10 and Comparative Example 2

[0123] Extinguishing time Anti-burning time Comparative Example 2 2 min 4 min Example 10 32s 15 min

[0124] As can be seen from Table 4, the fire extinguishing time of the water-based extinguishing agent prepared in Comparative Example 2 without adding ammonium polyphosphate is 2 min, and the burn resistance time is 4 min; while the fire extinguishing time of the water-based extinguishing agent prepared in Example 10 with adding ammonium polyphosphate is 32 s, and the burn resistance time is 15 min, which shows that the addition of ammonium polyphosphate can reduce the fire extinguishing time, improve the burn resistance time, and thus improve the fire extinguishing effect of the extinguishing agent.

[0125] The above merely provides the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An aqueous fire extinguishing agent, characterized in that The water-based fire extinguishing agent comprises the following components in mass fraction: organic solvent 2%, amphoteric surfactant foaming agent 20%, anionic foaming agent 10%, C6 fluorocarbon surfactant 10%, penetrating agent 5%, ammonium polyphosphate 30%, and water 23%. The organic solvent is diethylene glycol monobutyl ether. The amphoteric surfactant foaming agent is alkyl polyglycoside. The anionic foaming agent is sodium dodecyl benzene sulfonate. The C6 fluorocarbon surfactant is C6 fluorocarbon surfactant 1470. The penetrating agent is penetrating agent JFC.

2. A process for preparing the aqueous fire extinguishing agent as claimed in claim 1, characterized in that, The method comprises the following steps: The organic solvent, the amphoteric surfactant foaming agent, the anionic foaming agent, the C6 fluorocarbon surfactant, the penetrating agent, the ammonium polyphosphate, and the water are stirred and mixed to obtain the water-based fire extinguishing agent.

3. The method of claim 2, wherein the water-based fire extinguishing agent is prepared by adding the water to the mixture of the water-soluble inorganic salt and the water-soluble organic compound, and then adding the water-soluble polymer to the mixture. The method comprises the following steps: The ammonium polyphosphate is added to the water, stirred, and then the organic solvent, the amphoteric surfactant foaming agent, and the anionic foaming agent are added and stirred, and finally the C6 fluorocarbon surfactant and the penetrating agent are added and stirred again to obtain the water-based fire extinguishing agent.

4. The method for preparing aqueous fire extinguishing agent according to claim 3, wherein The method comprises the following steps: The ammonium polyphosphate is added to the water, stirred at a speed of 6000-8000 r / min for 20-40 min, the organic solvent, the amphoteric surfactant foaming agent, and the anionic foaming agent are added and stirred at a speed of 4000-6000 r / min for 30-50 min, and finally the C6 fluorocarbon surfactant and the penetrating agent are added and stirred at a speed of 2000-4000 r / min for 30-50 min to obtain the water-based fire extinguishing agent.