Water-based fire extinguishing agent composition and preparation method thereof

Abstract

The invention relates to a water-based fire extinguishing agent composition and a preparation method thereof, and belongs to the technical field of water-based fire extinguishing agents. The invention relates to a fluorocarbon surfactant which is formed by mixing a hydrocarbon surfactant, a synergist, an antifreeze agent, an antibacterial agent, a thickening agent and the like, a water-based fire extinguishing agent concentrated solution is obtained by stirring and mixing, and then the final water-based fire extinguishing agent is formed by the water-based fire extinguishing agent concentrated solution and water. The invention also relates to a synergist for enhancing the fire extinguishing capacity after the mixture is successfully obtained. The prepared water-based fire extinguishing agent has low surface tension and corrosion rate and high fire extinguishing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of water-based fire extinguishing agents, in particular to a water-based fire extinguishing agent composition and a preparation method thereof. Background Art

[0002] Water is the most commonly used fire extinguishing agent in fires, but water has some disadvantages such as easy loss of flow and high density, which makes it unlikely to effectively extinguish fires, especially when extinguishing Class B oil fires. The fire extinguishing efficiency of water can be improved by adding additives to water. The additives in water-based fire extinguishing agents mainly include surfactants (including fluorocarbon surfactants, hydrocarbon surfactants, etc.), flame retardants, emulsifiers, thickeners, antifreeze agents and other additives. It can include one or more of them.

[0003] Chinese patent CN102274604B: discloses a water-based fire extinguishing agent, which is a mixture of a hydrocarbon surfactant, a stabilizing coupling agent, a chelating agent, a spreading anti-burning agent, an antifreeze agent, an emulsifier, a viscosity enhancer and water.

[0004] Chinese patent CN102350032B: An environmentally friendly water-based fire extinguishing agent, the components of which are deionized water, preservative, metal rust inhibitor, halogen-free flame retardant, hydrocarbon surfactant, high-efficiency chelating agent, 2-5 parts of penetrant and high-efficiency corrosion inhibitor. The preparation method of the water-based fire extinguishing agent is to add deionized water to a dispersion tank by weight, then add preservative, metal rust inhibitor, halogen-free flame retardant and hydrocarbon surfactant, stir evenly and wait until the materials are completely dissolved; then add high-efficiency chelating agent, penetrant and corrosion inhibitor and stir evenly until translucent to obtain the finished product.

[0005] Chinese patent CN103285550B: relates to a water-based fire extinguishing agent for extinguishing coal powder fires, the mass percentage of which is: TritonX-100 is 1.5%-2.5%; Tween-20 is 1.5%-2.5%; glycerol is 0.5%-1.5%; sodium bicarbonate is 0.5%-1.5%; sodium tripolyphosphate is 0.2%-0.5%; in the percentage composition, the remaining component is water; it is prepared in the following order: (a) add sodium bicarbonate to water and stir until clear; (b) stir and add sodium tripolyphosphate, stir evenly, and let it stand for at least 1 minute; (c) stir and add Tween-20, TritonX-100 and glycerol, in no order; (d) stir until clear.

[0006] The water-based fire extinguishing agents prepared by the above patents and prior art have large surface tension, high corrosion rate, unstable foam and low fire extinguishing efficiency. The present invention aims to improve the stability and water carrying capacity of the foam, effectively form a durable and stable foam, isolate oxygen, carry more water to reduce the flame temperature, speed up the fire extinguishing speed and achieve rapid and effective fire extinguishing capability. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a water-based fire extinguishing agent composition, comprising the following components:

[0008] By weight,

[0009] 5-10 parts of fluorocarbon surfactant,

[0010] 10-35 parts of hydrocarbon surfactant,

[0011] 40-70 parts deionized water

[0012] 10-20 parts antifreeze,

[0013] 0.2-2 parts of antibacterial agent,

[0014] 0.05-5 parts thickener,

[0015] 5-10 parts buffer,

[0016] The mixing steps are:

[0017] S1: Add 5-10 parts of fluorocarbon surfactant, 10-35 parts of hydrocarbon surfactant and 40-70 parts of deionized water into a stirring kettle, and stir at 300-500 rpm for 20-40 minutes;

[0018] S2: Continue to add 10-20 parts of antifreeze agent, 0.2-2 parts of antibacterial agent, 0.05-5 parts of thickener, and 5-10 parts of buffer, and stir at a speed of 100-300 rpm for 15-30 minutes to obtain a water-based fire extinguishing agent concentrate.

[0019] The fluorocarbon surfactant is hexafluoropropylene oxide trimer acid.

[0020] The hydrocarbon surfactant is one of AES, SDS, TX-10, APG0810 and APG0814.

[0021] The antifreeze agent is propylene glycol or ethylene glycol.

[0022] The antibacterial agent is one of sodium benzoate, sodium benzoate and potassium sorbate.

[0023] The thickener is one of xanthan gum, modified starch, xanthan gum, sodium carboxymethyl cellulose, silica sol and aluminum sol.

[0024] The buffer is diammonium hydrogen phosphate or aluminum hypophosphite.

[0025] Subsequently, in order to increase the foam stability, 0.05 to 0.5 parts of enhancer were added to the above formula.

[0026] The preparation method of the synergist:

[0027] B1: 10-20 parts of ethylene glycol bis(thioglycolate), 0.02-0.05 parts of tetrabromobisphenol A bisallyl ether, 3-7 parts of 4-propylene thiosemicarbazide, 0.003-0.06 parts of allyl(cyclopentadienyl)nickel are mixed, 200-300 parts of DMF are added, 0.05-0.5 parts of photoinitiator are added after mixing, and the mixture is reacted under ultraviolet light with a maximum absorption wavelength of 280 nm; the reaction time is controlled to be 60-100 minutes;

[0028] B2: After the reaction is completed, DMF is removed by distillation to obtain a synergist.

[0029] The photoinitiator is one of photoinitiator 819, photoinitiator 184 and photoinitiator ITX.

[0030] Reaction mechanism

[0031] One thiol group of bis(thioglycolic acid) glycol ester undergoes a thiol click chemical reaction with tetrabromobisphenol A bisallyl ether and allyl(cyclopentadienyl)nickel, and the other thiol group of bis(thioglycolic acid) glycol ester undergoes a thiol click chemical reaction with 4-propylenethiosemicarbazide to obtain ethylene glycol ester grafted with tetrabromobisphenol A, semicarbazide and (cyclopentadienyl)nickel, which is used as a synergist in water-based fire extinguishing agents to assist hexafluoropropylene oxide trimer acid in improving fire extinguishing performance.

[0032] Technical Effects

[0033] The water-based fire extinguishing agent composition of the present invention has the following significant effects compared with the prior art:

[0034] 1. The present invention introduces C6 fluorocarbon compounds as surfactants, which significantly reduce the surface tension of the fire extinguishing agent and increase the penetration ability of the water-based fire extinguishing agent on solid combustibles; reduce the foam volume, provide a structural basis for the stability of the foam, and increase the fluidity of the foam, that is, increase the coverage speed of the foam on the surface of the combustible, and improve the fire extinguishing efficiency.

[0035] 2. In order to further increase the stability based on 1, the present invention specially prepares a synergist, which is used in combination with hexafluoropropylene oxide trimer acid to significantly improve the fire extinguishing performance of the water-based fire extinguishing agent; specifically, tetrabromobisphenol A plays the role of a flame retardant in the reaction, and the bromine atoms in its structure can release non-combustible gas at high temperature, thereby reducing the oxygen concentration in the combustion area and inhibiting the spread of flames; at the same time, tetrabromobisphenol A can also promote the formation of a carbonized layer, covering the surface of the burning object, isolating the air, and further preventing the spread of flames.

[0036] 3. The introduction of aminourea further enhances the chemical stability and coverage of the fire extinguishing agent. During the reaction, aminourea may undergo cross-linking reaction with other components through its amino functional group to form a more stable network structure, thereby improving the adhesion and durability of the fire extinguishing agent. This enhanced chemical stability enables the fire extinguishing agent to maintain high-efficiency fire extinguishing performance even in harsh environments and is not easy to decompose and fail.

[0037] 4. The glycol ester part of (cyclopentadienyl) nickel brings special physical and chemical properties to the entire molecule; the nickel element has a unique electronic structure and catalytic activity, which may affect the reaction rate and efficiency of the fire extinguishing agent to a certain extent.

[0038] In summary, the C6 fluorocarbon surfactant of the present invention, and the synergist prepared later, make the fire extinguishing process more efficient by optimizing the synergistic effect between HFPO-TA and the synergist; this synergistic effect not only improves the fire extinguishing efficiency, but also extends the service life of the fire extinguishing agent, providing a more reliable solution for complex fire situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The fire extinguishing type of Example 1 is Class A, and the fire extinguishing time is 23 seconds and there is no re-ignition for 10 minutes;

[0040] Figure 2 The fire extinguishing type of Example 1 is Class B, and the fire extinguishing time is 18s and there is no re-ignition;

[0041] Figure 3 For Example 2, the fire extinguishing type A has a fire extinguishing time of 22 seconds and no re-ignition for 10 minutes;

[0042] Figure 4 The fire extinguishing type of Example 2 is Class B, and the fire extinguishing time is 16 seconds and there is no re-ignition;

[0043] Figure 5 For Example 3, the fire extinguishing type A has a fire extinguishing time of 20 seconds and no re-ignition for 10 minutes;

[0044] Figure 6 The fire extinguishing type of Example 3 is Class B, and the fire extinguishing time is 13s and there is no re-ignition;

[0045] Figure 7 For Example 4, the fire extinguishing type A has a fire extinguishing time of 19 seconds and no re-ignition for 10 minutes;

[0046] Figure 8 The fire extinguishing type of Example 4 is Class B, and the fire extinguishing time is 8s and there is no re-ignition;

[0047] Fig. 9 The fire extinguishing type of Example 5 is Class A, and the fire extinguishing time is 18 seconds and there is no re-ignition for 10 minutes;

[0048] Fig.10 The fire extinguishing type of Example 5 is Class B, and the fire extinguishing time is 9s and there is no re-ignition;

[0049] Fig.11 The fire extinguishing type of Example 6 is Class A, and the fire extinguishing time is 20 seconds and no re-ignition for 10 minutes;

[0050] Fig.12 The fire extinguishing type of Example 6 is Class B, and the fire extinguishing time is 10s and there is no re-ignition;

[0051] Fig.13 The fire extinguishing type of Example 7 is Class A, and the fire extinguishing time is 18 seconds and there is no re-ignition for 10 minutes;

[0052] Fig.14 The fire extinguishing type of Example 7 is Class B, and the fire extinguishing time is 8s and there is no re-ignition;

[0053] Fig.15 For the fire extinguishing type A in comparative example 1, the upper wood pile reignited 3 minutes after the fire was extinguished;

[0054] Fig.16 For the fire extinguishing type B of comparative example 1, it quickly reignites when it is close to being completely extinguished;

[0055] Fig.17 For the comparative example 2, the fire extinguishing type is Class A, and the middle layer reignites 7 minutes after extinguishing;

[0056] Fig.18 For the fire extinguishing type B in comparative example 2, the fire intensity showed no trend of decreasing;

[0057] Fig.19 For the fire extinguishing type A of comparative example 3, there is a continuous burning flame on the upper part of the wood pile;

[0058] Fig. 20 For comparative example 3, the fire extinguishing type is Class B, and the fire intensity is reduced. DETAILED DESCRIPTION

[0059] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description in combination with embodiments and comparative examples:

[0060] 1. Add water to the example water-based fire extinguishing agent concentrate to prepare a 6% foam solution, use a 600mL simple fire extinguisher, and conduct a fire extinguishing performance test according to the XF86-2009 standard;

[0061] 2. Surface tension and corrosion rate test: refer to GB17835-2008 for testing.

[0062] Example 1

[0063] A water-based fire extinguishing agent composition, comprising the following components:

[0064] 7g fluorocarbon surfactant,

[0065] 10g hydrocarbon surfactant,

[0066] 64.95g deionized water

[0067] 10g antifreeze,

[0068] 1g antibacterial agent,

[0069] 0.05g thickener,

[0070] 7g buffer,

[0071] The mixing steps are:

[0072] S1: Add 7 g of fluorocarbon surfactant, 10 g of hydrocarbon surfactant and 64.95 g of deionized water into a stirring kettle and stir at 300 rpm for 20 minutes;

[0073] S2: Continue to add 10g of antifreeze agent, 1g of antibacterial agent, 0.05g of thickener, and 7g of buffer, and stir at 100rpm for 30 minutes to obtain a water-based fire extinguishing agent concentrate.

[0074] The fluorocarbon surfactant is hexafluoropropylene oxide trimer acid.

[0075] The hydrocarbon surfactant is APG0810.

[0076] The antifreeze agent is ethylene glycol.

[0077] The antibacterial agent is potassium sorbate.

[0078] The thickener is xanthan gum.

[0079] The buffer is diammonium hydrogen phosphate.

[0080] Example 2

[0081] A water-based fire extinguishing agent composition, comprising the following components:

[0082] 7g fluorocarbon surfactant,

[0083] 10g hydrocarbon surfactant,

[0084] 64.9g deionized water

[0085] 10g antifreeze,

[0086] 1g antibacterial agent,

[0087] 0.1g thickener,

[0088] 7g buffer,

[0089] The mixing steps are:

[0090] S1: Add 7 g of fluorocarbon surfactant, 10 g of hydrocarbon surfactant and 64.9 g of deionized water into a stirring kettle and stir at 300 rpm for 20 minutes;

[0091] S2: Continue to add 10g of antifreeze agent, 1g of antibacterial agent, 0.1g of thickener, and 7g of buffer, and stir at 100rpm for 30 minutes to obtain a water-based fire extinguishing agent concentrate.

[0092] The fluorocarbon surfactant is hexafluoropropylene oxide trimer acid.

[0093] The hydrocarbon surfactant is APG0810.

[0094] The antifreeze agent is propylene glycol.

[0095] The antibacterial agent is potassium sorbate.

[0096] The thickener is xanthan gum.

[0097] The buffer is diammonium hydrogen phosphate.

[0098] Example 3

[0099] A water-based fire extinguishing agent composition comprises the following components:

[0100] 5g fluorocarbon surfactant,

[0101] 10g hydrocarbon surfactant,

[0102] 40g deionized water,

[0103] 10g antifreeze,

[0104] 0.2g antibacterial agent,

[0105] 0.05g thickener,

[0106] 5g buffer,

[0107] 0.05g synergist.

[0108] The mixing steps are:

[0109] S1: Add 5 g of fluorocarbon surfactant, 10 g of hydrocarbon surfactant, 0.05 g of synergist, and 40 g of deionized water into a stirring kettle, and stir at 300 rpm for 20 minutes;

[0110] S2: Continue to add 10g antifreeze agent, 0.2g antibacterial agent, 0.05g thickener, and 5g buffer, and stir at a speed of 100-300rpm for 15 minutes to obtain a water-based fire extinguishing agent concentrate.

[0111] The fluorocarbon surfactant is hexafluoropropylene oxide trimer acid.

[0112] The hydrocarbon surfactant is AES.

[0113] The antifreeze agent is propylene glycol.

[0114] The antibacterial agent is sodium benzoate.

[0115] The thickener is xanthan gum.

[0116] The buffer is diammonium hydrogen phosphate.

[0117] The preparation method of the synergist:

[0118] B1: 10 g of ethylene glycol bis(thioglycolate), 0.02 g of tetrabromobisphenol A bisallyl ether, 3 g of 4-propylene thiosemicarbazide, and 0.003 g of allyl(cyclopentadienyl)nickel were mixed, and 200 g of DMF was added. After mixing, 0.05 g of photoinitiator was added, and the mixture was reacted under ultraviolet light with a maximum absorption wavelength of 280 nm; the reaction time was controlled to be 60 minutes;

[0119] B2: After the reaction is completed, DMF is removed by distillation to obtain a synergist.

[0120] The photoinitiator is photoinitiator 819.

[0121] Example 4

[0122] A water-based fire extinguishing agent composition, comprising the following components:

[0123] 7g fluorocarbon surfactant,

[0124] 10g hydrocarbon surfactant,

[0125] 58.7g deionized water

[0126] 15g antifreeze,

[0127] 1g antibacterial agent,

[0128] 1g thickener,

[0129] 7g buffer,

[0130] 0.3g synergist.

[0131] The mixing steps are:

[0132] S1: Add 7g of fluorocarbon surfactant, 10g of hydrocarbon surfactant, 0.3g of synergist and 58.7g of deionized water into a stirring kettle and stir at 400rpm for 30 minutes;

[0133] S2: Continue to add 15g of antifreeze agent, 1g of antibacterial agent, 1g of thickener, and 7g of buffer, and stir at 200rpm for 20 minutes to obtain a water-based fire extinguishing agent concentrate.

[0134] The fluorocarbon surfactant is hexafluoropropylene oxide trimer acid.

[0135] The hydrocarbon surfactant is APG0810.

[0136] The antifreeze agent is propylene glycol.

[0137] The antibacterial agent is sodium benzoate.

[0138] The thickener is xanthan gum.

[0139] The buffer is diammonium hydrogen phosphate.

[0140] The preparation method of the synergist:

[0141] B1: 15 g of ethylene glycol bis(thioglycolate), 0.03 g of tetrabromobisphenol A bisallyl ether, 5 g of 4-propylene thiosemicarbazide, and 0.03 g of allyl(cyclopentadienyl)nickel were mixed, 250 g of DMF was added, 0.3 g of photoinitiator was added after mixing, and the mixture was reacted under ultraviolet light with a maximum absorption wavelength of 280 nm; the reaction time was controlled to be 80 minutes;

[0142] B2: After the reaction is completed, DMF is removed by distillation to obtain a synergist.

[0143] The photoinitiator is photoinitiator 184.

[0144] Example 5

[0145] A water-based fire extinguishing agent composition, comprising the following components:

[0146] 7g fluorocarbon surfactant,

[0147] 10g hydrocarbon surfactant,

[0148] 53.4g deionized water

[0149] 20g antifreeze,

[0150] 2g antibacterial agent,

[0151] 0.1g thickener,

[0152] 7g buffer,

[0153] 0.5g synergist.

[0154] The mixing steps are:

[0155] S1: Add 7 g of fluorocarbon surfactant, 10 g of hydrocarbon surfactant, 0.5 g of synergist, and 53.4 g of deionized water into a stirring kettle, and stir at 500 rpm for 40 minutes;

[0156] S2: Continue to add 20g of antifreeze agent, 2g of antibacterial agent, 0.1g of thickener, and 7g of buffer, and stir at 300rpm for 30 minutes to obtain a water-based fire extinguishing agent concentrate.

[0157] The fluorocarbon surfactant is hexafluoropropylene oxide trimer acid.

[0158] The hydrocarbon surfactant is APG0810.

[0159] The antifreeze agent is ethylene glycol.

[0160] The antibacterial agent is potassium sorbate.

[0161] The thickener is xanthan gum.

[0162] The buffer is diammonium hydrogen phosphate.

[0163] The preparation method of the synergist:

[0164] B1: 20 g of ethylene glycol bis(thioglycolate), 0.05 g of tetrabromobisphenol A bisallyl ether, 7 g of 4-propylene thiosemicarbazide, and 0.06 g of allyl(cyclopentadienyl)nickel were mixed, 300 g of DMF was added, 0.5 g of photoinitiator was added after mixing, and the mixture was reacted under ultraviolet light with a maximum absorption wavelength of 280 nm; the reaction time was controlled to be 100 minutes;

[0165] B2: After the reaction is completed, DMF is removed by distillation to obtain a synergist.

[0166] The photoinitiator is photoinitiator ITX.

[0167] Example 6

[0168] A water-based fire extinguishing agent composition, comprising the following components:

[0169] 8g fluorocarbon surfactant,

[0170] 10g hydrocarbon surfactant,

[0171] 62g deionized water

[0172] 10g antifreeze,

[0173] 1g antibacterial agent,

[0174] 1g thickener,

[0175] 8g buffer.

[0176] The mixing steps are:

[0177] S1: Add 8 g of fluorocarbon surfactant, 10 g of hydrocarbon surfactant and 62 g of deionized water into a stirring kettle and stir at 300 rpm for 20 minutes;

[0178] S2: Continue to add 10g of antifreeze agent, 1g of antibacterial agent, 1g of thickener, and 8g of buffer, and stir at 100rpm for 30 minutes to obtain a water-based fire extinguishing agent concentrate.

[0179] The fluorocarbon surfactant is hexafluoropropylene oxide trimer acid.

[0180] The hydrocarbon surfactant is APG0814.

[0181] The antifreeze agent is ethylene glycol.

[0182] The antibacterial agent is sodium benzoate.

[0183] The thickener is xanthan gum.

[0184] The buffer is diammonium hydrogen phosphate.

[0185] Example 7

[0186] A water-based fire extinguishing agent composition, comprising the following components:

[0187] 8g fluorocarbon surfactant,

[0188] 10g hydrocarbon surfactant,

[0189] 58g deionized water

[0190] 10g antifreeze,

[0191] 1g antibacterial agent,

[0192] 5g thickener,

[0193] 8g buffer.

[0194] The mixing steps are:

[0195] S1: Add 8 g of fluorocarbon surfactant, 10 g of hydrocarbon surfactant and 58 g of deionized water into a stirring kettle and stir at 300 rpm for 20 minutes;

[0196] S2: Continue to add 10g of antifreeze agent, 1g of antibacterial agent, 5g of thickener, and 8g of buffer, and stir at 100rpm for 30 minutes to obtain a water-based fire extinguishing agent concentrate.

[0197] The fluorocarbon surfactant is hexafluoropropylene oxide trimer acid.

[0198] The hydrocarbon surfactant is APG0814.

[0199] The antifreeze agent is ethylene glycol.

[0200] The antibacterial agent is potassium sorbate.

[0201] The thickener is sodium alginate.

[0202] The buffer is diammonium hydrogen phosphate.

[0203] Comparative Example 1

[0204] A water-based fire extinguishing agent composition, comprising the following components:

[0205] 10g fluorocarbon surfactant,

[0206] 15g hydrocarbon surfactant,

[0207] 40g deionized water

[0208] 20g antifreeze,

[0209] 2g antibacterial agent,

[0210] 3g thickener,

[0211] 10g buffer,

[0212] The mixing steps are:

[0213] S1: Add 10 g of fluorocarbon surfactant, 15 g of hydrocarbon surfactant and 40 g of deionized water into a stirring kettle and stir at 300 rpm for 20 minutes;

[0214] S2: Continue to add 20g of antifreeze agent, 2g of antibacterial agent, 3g of thickener, and 10g of buffer, and stir at 100rpm for 30 minutes to obtain a water-based fire extinguishing agent concentrate.

[0215] The fluorocarbon surfactant is dodecyl betaine.

[0216] The hydrocarbon surfactant is SDS.

[0217] The antifreeze agent is ethylene glycol.

[0218] The antibacterial agent is potassium sorbate.

[0219] The thickener is aluminum sol.

[0220] The buffer is aluminum hypophosphite.

[0221] Comparative Example 2

[0222] A water-based fire extinguishing agent composition, comprising the following components:

[0223] 5g fluorocarbon surfactant,

[0224] 35g hydrocarbon surfactant,

[0225] 49.5g deionized water

[0226] 25g antifreeze,

[0227] 2g antibacterial agent,

[0228] 5g thickener,

[0229] 10g solvent,

[0230] The mixing steps are:

[0231] S1: Add 5 g of fluorocarbon surfactant, 35 g of hydrocarbon surfactant and 49.5 g of deionized water into a stirring kettle and stir at 300 rpm for 20 minutes;

[0232] S2: Continue to add 25g of antifreeze agent, 2g of antibacterial agent, 5g of thickener, and 10g of cosolvent, and stir at 100rpm for 30 minutes to obtain a water-based fire extinguishing agent concentrate.

[0233] The fluorocarbon surfactant is a fluorosilicone surfactant.

[0234] The hydrocarbon surfactant is 2% APG0810, 3% K12, and 30% LAB-35.

[0235] The antifreeze agent is ethylene glycol.

[0236] The antibacterial agent is sodium benzoate.

[0237] The thickener is 0.2g xanthan gum and 4.8g polyethylene glycol.

[0238] The cosolvent is 5% ethylene glycol butyl ether and 5% tetrasodium aminotri(methylenephosphonic acid).

[0239] Comparative Example 3

[0240] 10% of fluorosilicone surfactant was added, and the other conditions were the same as those in Comparative Example 2.

[0241] Surface tension mN / m <![CDATA[Corrosion rate mg / (d*dm 2 )]]> Example 1 17.4 5.8 Example 2 17.5 5.7 Example 3 18.6 5.4 Example 4 17.8 5.5 Example 5 17.9 5.3 Example 6 17.0 5.8 Example 7 17.1 5.8 Comparative Example 1 19.8 7.4 Comparative Example 2 22.1 6.8 Comparative Example 3 19.9 6.4

[0242] Through the data analysis of the above embodiments and comparative examples, the water-based fire extinguishing agent prepared by the present invention has lower surface tension and corrosion rate and higher fire extinguishing efficiency.

Claims

1. A water-based fire extinguishing agent composition, comprising the following components: By weight, 5-10 parts of fluorocarbon surfactant, 10-35 parts of hydrocarbon surfactant, 40-70 parts of deionized water, 10-20 parts antifreeze, 0.2-2 parts of antibacterial agent, 0.05-5 parts thickener, 5-10 parts buffer.

2. According to claim 1, the water-based fire extinguishing agent composition comprises the following steps: S1: Add 5-10 parts of fluorocarbon surfactant, 10-35 parts of hydrocarbon surfactant and 40-70 parts of deionized water into a stirring kettle, and stir at 300-500 rpm for 20-40 minutes; S2: Continue to add 10-20 parts of antifreeze agent, 0.2-2 parts of antibacterial agent, 0.05-5 parts of thickener, and 5-10 parts of buffer, and stir at a speed of 100-300 rpm for 15-30 minutes to obtain a water-based fire extinguishing agent concentrate.

3. A water-based fire extinguishing agent according to claim 1, characterized in that: The fluorocarbon surfactant is hexafluoropropylene oxide trimer acid.

4. A water-based fire extinguishing agent according to claim 1, characterized in that: The hydrocarbon surfactant is one of AES, SDS, TX-10, APG0810 and APG0814.

5. A water-based fire extinguishing agent according to claim 1, characterized in that: The antifreeze agent is propylene glycol or ethylene glycol.

6. A water-based fire extinguishing agent according to claim 1, characterized in that: The antibacterial agent is one of sodium benzoate, sodium benzoate and potassium sorbate.

7. A water-based fire extinguishing agent according to claim 1, characterized in that: The thickener is one of xanthan gum, modified starch, xanthan gum, sodium carboxymethyl cellulose, silica sol and aluminum sol.

8. A water-based fire extinguishing agent according to claim 1, characterized in that: The buffer is diammonium hydrogen phosphate or aluminum hypophosphite.

9. A water-based fire extinguishing agent according to claim 1, characterized in that: Add 0.05 to 0.5 parts of a synergist, the preparation method of the synergist is: B1: 10-20 parts of ethylene glycol bis(thioglycolate), 0.02-0.05 parts of tetrabromobisphenol A bisallyl ether, 3-7 parts of 4-propylene thiosemicarbazide, 0.003-0.06 parts of allyl(cyclopentadienyl)nickel are mixed, 200-300 parts of DMF are added, 0.05-0.5 parts of photoinitiator are added after mixing, and the mixture is reacted under ultraviolet light with a maximum absorption wavelength of 280 nm; the reaction time is controlled to be 60-100 minutes; B2: After the reaction is completed, DMF is removed by distillation to obtain a synergist.

10. A water-based fire extinguishing agent composition according to claim 9, characterized in that: The photoinitiator is one of photoinitiator 819, photoinitiator 184 and photoinitiator ITX.

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