CN111202938B - Water-based fire extinguishing agent, preparation method thereof and fire extinguisher - Google Patents
Water-based fire extinguishing agent, preparation method thereof and fire extinguisher Download PDFInfo
- Publication number
- CN111202938B CN111202938B CN202010067160.3A CN202010067160A CN111202938B CN 111202938 B CN111202938 B CN 111202938B CN 202010067160 A CN202010067160 A CN 202010067160A CN 111202938 B CN111202938 B CN 111202938B
- Authority
- CN
- China
- Prior art keywords
- water
- flame retardant
- fire extinguishing
- surfactant
- extinguishing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0028—Liquid extinguishing substances
- A62D1/0035—Aqueous solutions
- A62D1/0042—"Wet" water, i.e. containing surfactant
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The invention discloses a water-based fire extinguishing agent, a preparation method thereof and a fire extinguisher, and belongs to the technical field of fire-fighting equipment. The water-based fire extinguishing agent is mainly prepared from the following raw materials in parts by weight: 3.1-4.5 parts of hydrocarbon surfactant, 1.2-1.8 parts of fluorocarbon surfactant, 1.85-2.2 parts of tackifier, 0.72-0.85 part of flame retardant, 1-2 parts of antifreeze, 1.5-1.8 parts of stabilizer and 820 parts of water 610-; the flame retardant is at least one of melamine cyanurate, aluminum hypophosphite, diethyl aluminum phosphinate, ammonium polyphosphate, aluminum hydroxide and zinc borate. The water-based fire extinguishing agent disclosed by the invention is added with the hydrocarbon surfactant and the fluorocarbon surfactant, so that the synergistic effect of the hydrocarbon surfactant and the fluorocarbon surfactant can be fully exerted, the surfactant is prevented from precipitating, the uniformity and the stability of the fire extinguishing agent are improved, and the burning resistance of the fire extinguishing agent is improved to a certain extent.
Description
Technical Field
The invention relates to the technical field of fire-fighting equipment, in particular to a water-based fire extinguishing agent, a preparation method thereof and a fire extinguisher.
Background
The fire can cause huge loss to people's lives and properties, and at present, along with the rapid increase of urban population density, various activities of people greatly increase the risk of fire, and how to reduce the probability of fire or reduce the damage degree of fire is an important problem facing urban development. To avoid fire, it is necessary to enhance the safety and flame retardant properties of buildings and devices. If a fire disaster happens carelessly, the fire source can be extinguished in time when the fire disaster just begins, and the fire disaster is eliminated in the cradle stage; if the fire spreads, effective means are required to control the fire. Fire extinguishers and large-scale fire-fighting equipment are common fire-fighting appliances after a fire occurs, and the fire extinguishing agent determines the fire extinguishing effect.
The Chinese patent with application publication number CN106267635A discloses a water-based multifunctional flame-retardant fire extinguisher, which comprises the following liquid fire extinguishing agents in percentage by mass: 400-520 parts of purified water, 20-40 parts of urea, 10-25 parts of potassium carbonate, 15-50 parts of ammonium sulfate, 10-35 parts of sodium bicarbonate, 15-30 parts of 6% AFFF/AR fire extinguishing agent, 5-15 parts of dodecyl dimethyl betaine and 90-140 parts of anti-freezing liquid. The fire extinguishing agent contains surfactant and commodity fire extinguishing agent, and has rich foam and high dispersion flowability. However, the fire extinguishing agent contains a single type of surfactant, so that the foam has poor film forming property and film strength, and the overall burning resistance of the fire extinguishing agent is poor.
Disclosure of Invention
In view of the disadvantages of the prior art, a first object of the present invention is to provide a water-based fire extinguishing agent having a long burning-resistant time.
The second purpose of the invention is to provide a preparation method of the water-based fire extinguishing agent, and the prepared water-based fire extinguishing agent has better uniformity and stability.
A third object of the present invention is to provide a fire extinguisher having high fire extinguishing efficiency.
In order to achieve the first object, the invention provides the following technical scheme:
a water-based fire extinguishing agent is mainly prepared from the following raw materials in parts by weight: 3.1-4.5 parts of hydrocarbon surfactant, 1.2-1.8 parts of fluorocarbon surfactant, 1.85-2.2 parts of tackifier, 0.72-0.85 part of flame retardant, 1-2 parts of antifreeze, 0.75-0.9 part of stabilizer and 820 parts of water 610-; the flame retardant is at least one of melamine cyanurate, aluminum hypophosphite, diethyl aluminum phosphinate, ammonium polyphosphate, aluminum hydroxide and zinc borate.
By adopting the technical scheme, besides the hydrocarbon surfactant, the fluorocarbon surfactant is added into the water-based fire extinguishing agent, the strong electron-withdrawing capability of fluorine atoms can make the adsorbability of carbon chains of the fluorocarbon surfactant stronger, the phenomenon that similar hydrocarbon surfactants are easy to generate electricity neutralization and precipitate is avoided, the film forming property and the film forming strength of the water-based fire extinguishing agent are improved, the foam is not easy to break when being subjected to external force, the existence time of the foam is prolonged, the gas permeability is reduced, and the burning resistance of the fire extinguishing agent is greatly improved. The fluorocarbon surfactant and the hydrocarbon surfactant have synergistic effect, can promote the adsorption between the fluorocarbon surfactant and the hydrocarbon surfactant, are favorable for forming micelle, further increase the viscosity and strength of the film and improve the burning resistance of the fire extinguishing agent. The fire extinguishing agent is also added with a fire retardant, and the fire retardant can be uniformly distributed on the surface of a comburent along with a film to prevent the combustion reaction from continuing.
The invention is further configured to: the water-based fire extinguishing agent is mainly prepared from the following raw materials in parts by weight: 3.25-4.5 parts of hydrocarbon surfactant, 1.25-1.8 parts of fluorocarbon surfactant, 2.0-2.2 parts of tackifier, 0.75-0.85 part of flame retardant, 1.2-1.95 parts of antifreeze, 0.8-0.9 part of stabilizer and 820 parts of water 660-; the flame retardant is at least one of melamine cyanurate, aluminum hypophosphite, diethyl aluminum phosphinate, ammonium polyphosphate, aluminum hydroxide and zinc borate.
By adopting the technical scheme, the proportion of each raw material is further optimized, the relative proportion of the fire retardant is improved, and the burning resistance of the fire extinguishing agent is further improved.
The invention is further configured to: the flame retardant is formed by combining at least one of aluminum hypophosphite, aluminum diethylphosphinate, ammonium polyphosphate, aluminum hydroxide and zinc borate with melamine cyanurate.
By adopting the technical scheme, the flame retardant contains melamine cyanurate and other flame retardant substances, wherein the aluminum hypophosphite, the aluminum diethylphosphinate and the ammonium polyphosphate contain rich phosphorus, and can act synergistically with the melamine cyanurate to play different flame retardant mechanisms and improve the flame retardant effect; and the aluminum hydroxide and the zinc borate are used as inorganic flame retardants, so that the flowability of the fire extinguishing agent can be controlled, and the fire extinguishing effect is further improved.
The invention is further configured to: the hydrocarbon surfactant is at least one of cetyl trimethyl ammonium bromide, cetyl trimethyl ammonium chloride, dodecyl diethanolamide and dodecyl dihydroxyethyl betaine.
By adopting the technical scheme, the adopted hydrocarbon surfactants are relatively strong in polarity, can be well combined with the fluorocarbon surfactant, avoid generating electric neutralization and precipitation, and improve the stability of the fire extinguishing agent.
The invention is further configured to: the tackifier is at least one of starch grafted acrylamide polymer, cooked rubber powder and kaolin.
Through adopting above-mentioned technical scheme, the viscosity that the tackifier can improve foam and membrane, and then improves the mechanical strength of membrane, increases the live time of foam. The starch grafted acrylamide polymer and the cooked rubber powder can play a role in crosslinking macromolecular compounds, so that the strength of the film is improved; the kaolin can increase the viscosity, and can further improve the flow resistance and the burning resistance time of the fire extinguishing agent.
The invention is further configured to: the antifreezing agent is at least one of ethylene glycol and propylene glycol.
By adopting the technical scheme, because a large amount of water is added into the fire extinguishing agent, the fire extinguishing agent is added with an antifreezing agent in order to be used in a low-temperature environment. The ethylene glycol and the propylene glycol are used as the antifreezing agent, and can be better combined with the surfactant, so that the dispersion uniformity of the antifreezing agent in the fire extinguishing agent is improved, and the freezing resistance of the fire extinguishing agent is further improved.
The invention is further configured to: the stabilizer is at least one of dimethyl phthalate and propylene glycol methyl ether.
By adopting the technical scheme, the two stabilizers have good compatibility, the dispersion uniformity of other raw materials can be improved, and the stability of the fire extinguishing agent is further improved.
In order to achieve the second object, the invention provides the following technical scheme:
the preparation method of the water-based fire extinguishing agent comprises the following steps:
1) uniformly mixing a hydrocarbon surfactant, a flame retardant and water to prepare a flame retardant liquid;
uniformly mixing a fluorocarbon surfactant, a tackifier, a stabilizer, an antifreezing agent and water to prepare a glue solution;
2) uniformly mixing the flame retardant liquid prepared in the step 1) with the glue solution to prepare a mother solution, and diluting the mother solution to obtain the flame retardant rubber.
By adopting the technical scheme, the hydrocarbon surfactant and the fire retardant are mixed firstly, and the fluorocarbon surfactant and the tackifier are mixed uniformly, so that the fire retardant and the tackifier are dispersed uniformly to the maximum extent under the action of the surfactant respectively, and then the obtained fire retardant liquid and glue liquid are mixed uniformly, and the uniformity of the fire extinguishing agent is greatly improved.
The invention is further configured to: in the step 1), the hydrocarbon surfactant, the flame retardant and the water are uniformly mixed, namely the hydrocarbon surfactant and the water are uniformly mixed, and then the flame retardant is added and uniformly mixed to prepare the flame retardant liquid.
By adopting the technical scheme, the hydrocarbon surfactant is uniformly mixed with water to form fluid with certain viscosity, and when the flame retardant is added, agglomeration is avoided when inorganic substances are added, so that the inorganic substances are difficult to disperse uniformly.
The invention is further configured to: the step 1) of uniformly mixing the fluorocarbon surfactant, the tackifier, the stabilizer, the antifreezing agent and the water is to uniformly mix the fluorocarbon surfactant and the water, then add the tackifier and uniformly mix, and then add the stabilizer and the antifreezing agent and uniformly mix to obtain the glue solution.
By adopting the technical scheme, the fluorocarbon surfactant is uniformly mixed with water to obtain the fluid with higher viscosity, so that the subsequent addition of the tackifier can be avoided from agglomeration, and the uniformity of the fire extinguishing agent is further improved.
In order to achieve the third object, the invention provides the following technical solutions:
a fire extinguisher comprises a pressure vessel and a fire extinguishing agent arranged in the pressure vessel, wherein the fire extinguishing agent is a water-based fire extinguishing agent as described above.
By adopting the technical scheme, the fire extinguisher provided by the invention adopts the water-based fire extinguishing agent, so that the fire extinguishing efficiency is higher, and the fire extinguishing effect is better.
In conclusion, the invention has the following beneficial effects:
firstly, the water-based fire extinguishing agent disclosed by the invention is added with the hydrocarbon surfactant and the fluorocarbon surfactant, so that the synergistic effect of the hydrocarbon surfactant and the fluorocarbon surfactant can be fully exerted, the surfactant is prevented from precipitating, the uniformity and the stability of the fire extinguishing agent are improved, and the burning resistance of the fire extinguishing agent is also improved to a certain extent.
Secondly, the water-based fire extinguishing agent disclosed by the invention adopts the synergistic effect of multiple fire retardants, fully exerts different flame-retardant mechanisms of various fire retardants, improves the fire extinguishing effect of the fire extinguishing agent, and also improves the application range of the water-based fire extinguishing agent.
Detailed Description
The present invention will be described in further detail with reference to examples.
The starch graft acrylamide copolymers used in the following examples were prepared by a process comprising the steps of: uniformly mixing cassava starch and water according to the mass ratio of 1:20, preserving heat at 65 ℃ for 45min to prepare gelatinized starch, then adding an acrylamide monomer with the mass of 1.5 times of that of the starch and a small amount of ammonium persulfate, and carrying out mixing reaction for 3 h.
The chamotte rubber powder is M20 chamotte rubber powder produced by Guangzhou Gaoshi industry Co.
The flame retardant is preferably formed by combining at least one of aluminum hypophosphite, aluminum diethylphosphinate, ammonium polyphosphate, aluminum hydroxide and zinc borate with melamine cyanurate. The mass ratio of at least one of aluminum hypophosphite, aluminum diethylphosphinate, ammonium polyphosphate, aluminum hydroxide and zinc borate to melamine cyanurate is preferably 6-8:2-4, and more preferably 8: 2. More preferably, the flame retardant is formed by mixing a flame retardant A, a flame retardant B and a flame retardant C, wherein the flame retardant A is melamine cyanurate, the flame retardant B is at least one of aluminum hypophosphite, aluminum diethylphosphinate and ammonium polyphosphate, and the flame retardant C is at least one of aluminum hydroxide and zinc borate. The mass ratio of the flame retardant A to the flame retardant B to the flame retardant C is 2:5-7: 1-3.
Preferably, the tackifier is prepared by combining at least one of cooked rubber powder and kaolin and a starch grafted acrylamide polymer in a mass ratio of 2-4: 5. The stabilizer is preferably composed of dimethyl phthalate and propylene glycol methyl ether according to the mass ratio of 2-5: 1.
The preparation method of the water-based fire extinguishing agent comprises the following steps: 1) uniformly mixing a hydrocarbon surfactant, a flame retardant and water to prepare a flame retardant liquid; uniformly mixing a fluorocarbon surfactant, a tackifier, a stabilizer, an antifreezing agent and water to prepare a glue solution; 2) uniformly mixing the flame retardant liquid prepared in the step 1) with the glue solution to prepare a mother solution, and diluting the mother solution to obtain the flame retardant rubber.
In the step 1), the hydrocarbon surfactant, the flame retardant and the water are uniformly mixed, namely the hydrocarbon surfactant and the water are uniformly mixed, and then the flame retardant is added and uniformly mixed to prepare the flame retardant liquid. The step 1) of uniformly mixing the hydrocarbon surfactant with the water is to mix the hydrocarbon surfactant with the water and stir the mixture for 1-2-3min at the rotating speed of 2000-3000 rpm. After the flame retardant is added, stirring is carried out for 1-2min at the rotating speed of 500-800 rpm. Adding a flame retardant, stirring, and cooling to room temperature to obtain the flame retardant liquid.
The step 1) of uniformly mixing the fluorocarbon surfactant, the tackifier, the stabilizer, the antifreezing agent and the water is to uniformly mix the fluorocarbon surfactant and the water, then add the tackifier and uniformly mix, and then add the stabilizer and the antifreezing agent and uniformly mix to obtain the glue solution. The step 1) of uniformly mixing the fluorocarbon surfactant with the water is to mix the fluorocarbon surfactant with the water and stir at the rotation speed of 1200-1500-1800rpm for 1-2 min. After the tackifier is added, stirring is carried out for 1-2min at the rotation speed of 800-. After the stabilizer and the antifreeze are added, the mixture is stirred for 3-5min at the rotating speed of 300-500 rpm. Adding a stabilizer and an antifreeze, stirring, and cooling to room temperature to obtain a glue solution.
In the step 2), the flame retardant liquid and the glue solution are uniformly mixed and stirred for 2-3min at the rotating speed of 800-.
The mother liquor dilution is to mix the mother liquor with water and stir at 100-150rpm for 3-5 min.
Example 1
The water-based fire extinguishing agent of the embodiment is prepared from the following raw materials in parts by weight: 3.10kg of hydrocarbon surfactant, 1.20kg of fluorocarbon surfactant, 1.85kg of tackifier, 0.72kg of flame retardant, 1.05kg of antifreeze, 0.75kg of stabilizer and 620kg of water.
Wherein the hydrocarbon surfactant is cetyl trimethyl ammonium bromide, and the fluorocarbon surfactant is FS-31 type fluorocarbon surfactant produced by DuPont company. The tackifier is kaolin. The antifreezing agent is propylene glycol. The stabilizer is dimethyl phthalate. The flame retardant is melamine cyanurate.
The preparation method of the water-based fire extinguishing agent comprises the following steps:
1) adding 50kg of water into a high-speed stirrer, then adding a hydrocarbon surfactant, stirring at the rotating speed of 2000rpm for 3min, then adding a flame retardant, stirring at the rotating speed of 500rpm for 2min, and cooling to room temperature to obtain flame retardant liquid;
adding 20kg of water into a high-speed stirrer, then adding a fluorocarbon surfactant, stirring for 2min at the rotating speed of 1500rpm, then adding a tackifier, stirring for 3min at the rotating speed of 800rpm, then adding a stabilizer and an antifreeze, stirring for 3min at the rotating speed of 500rpm, and cooling to room temperature to obtain a glue solution;
2) adding the flame retardant liquid and the glue solution prepared in the step 1) into a high-speed stirrer, and stirring at the rotating speed of 800rpm for 2min to prepare a mother solution;
3) transferring the mother liquor prepared in the step 2) to a stirring dispersion tank, adding 550kg of water, and stirring at the rotating speed of 100rpm for 5min to obtain the product.
The fire extinguisher of the embodiment is a water-based fire extinguisher, and comprises a pressure steel cylinder, wherein the water-based fire extinguishing agent is filled in the pressure steel cylinder.
Example 2
The water-based fire extinguishing agent of the embodiment is prepared from the following raw materials in parts by weight: 3.25kg of hydrocarbon surfactant, 1.25kg of fluorocarbon surfactant, 2.00kg of tackifier, 0.75kg of flame retardant, 1.20kg of antifreeze, 0.9kg of stabilizer and 666kg of water.
Wherein the hydrocarbon surfactant is hexadecyl trimethyl ammonium chloride, and the fluorocarbon surfactant is FS-31 type fluorocarbon surfactant produced by DuPont company. The tackifier is cooked rubber powder. The antifreezing agent is ethylene glycol. The stabilizer consists of dimethyl phthalate and propylene glycol methyl ether according to the mass ratio of 2: 1. The flame retardant is zinc borate.
The preparation method of the water-based fire extinguishing agent comprises the following steps:
1) adding 50kg of water into a high-speed stirrer, then adding a hydrocarbon surfactant, stirring at the rotating speed of 3000rpm for 1min, then adding a flame retardant, stirring at the rotating speed of 800rpm for 1min, and cooling to room temperature to obtain flame retardant liquid;
adding 16kg of water into a high-speed stirrer, then adding a fluorocarbon surfactant, stirring at the rotation speed of 1800rpm for 1min, then adding a tackifier, stirring at the rotation speed of 1000rpm for 1min, then adding a stabilizer and an antifreeze, stirring at the rotation speed of 300rpm for 5min, and cooling to room temperature to obtain a glue solution;
2) adding the flame retardant liquid and the glue solution prepared in the step 1) into a high-speed stirrer, and stirring at the rotating speed of 1000rpm for 2min to prepare a mother solution;
3) transferring the mother liquor prepared in the step 2) to a stirring dispersion tank, adding 600kg of water, and stirring at the rotating speed of 150rpm for 3min to obtain the product.
The fire extinguisher of the embodiment is a water-based fire extinguisher, and comprises a pressure steel cylinder, wherein the water-based fire extinguishing agent is filled in the pressure steel cylinder.
Example 3
The water-based fire extinguishing agent of the embodiment is prepared from the following raw materials in parts by weight: 3.50kg of hydrocarbon surfactant, 1.50kg of fluorocarbon surfactant, 2.20kg of tackifier, 0.80kg of flame retardant, 1.50kg of antifreeze, 0.85kg of stabilizer and 700kg of water.
Wherein the hydrocarbon surfactant is hexadecyl trimethyl ammonium chloride, and the fluorocarbon surfactant is FS-31 type fluorocarbon surfactant produced by DuPont company. The tackifier is starch grafted acrylamide polymer. The antifreezing agent is propylene glycol. The stabilizer consists of dimethyl phthalate and propylene glycol methyl ether according to the mass ratio of 3: 1. The flame retardant is composed of melamine cyanurate and aluminum phosphinate according to the mass ratio of 2: 8.
The preparation method of the water-based fire extinguishing agent comprises the following steps:
1) adding 60kg of water into a high-speed stirrer, adding a hydrocarbon surfactant, stirring at the rotating speed of 2500rpm for 2min, adding a flame retardant, stirring at the rotating speed of 750rpm for 1min, and cooling to room temperature to obtain flame retardant liquid;
adding 30kg of water into a high-speed stirrer, then adding a fluorocarbon surfactant, stirring for 2min at the rotating speed of 1200rpm, then adding a tackifier, stirring for 1min at the rotating speed of 800rpm, then adding a stabilizer and an antifreeze, stirring for 5min at the rotating speed of 400rpm, and cooling to room temperature to obtain a glue solution;
2) adding the flame retardant liquid and the glue solution prepared in the step 1) into a high-speed stirrer, and stirring at the rotating speed of 900rpm for 2min to prepare a mother solution;
3) transferring the mother liquor prepared in the step 2) to a stirring dispersion tank, adding 610kg of water, and stirring at the rotating speed of 120rpm for 4min to obtain the product.
The fire extinguisher of the embodiment is a water-based fire extinguisher, and comprises a pressure steel cylinder, wherein the water-based fire extinguishing agent is filled in the pressure steel cylinder.
Example 4
The water-based fire extinguishing agent of the embodiment is prepared from the following raw materials in parts by weight: 4.10kg of hydrocarbon surfactant, 1.80kg of fluorocarbon surfactant, 2.05kg of tackifier, 0.85kg of flame retardant, 1.68kg of antifreeze, 0.82kg of stabilizer and 788kg of water.
Wherein the hydrocarbon surfactant is dodecyl diethanolamide, and the fluorocarbon surfactant is FS-31 type fluorocarbon surfactant produced by DuPont company. The tackifier is formed by mixing starch grafted acrylamide polymer and cooked rubber powder according to the mass ratio of 5: 3. The antifreezing agent is propylene glycol. The stabilizer consists of dimethyl phthalate and propylene glycol methyl ether according to the mass ratio of 5:1. The flame retardant is composed of melamine cyanurate, aluminum diethylphosphinate and aluminum hydroxide according to the mass ratio of 2:6: 2.
The preparation method of the water-based fire extinguishing agent comprises the following steps:
1) adding 60kg of water into a high-speed stirrer, then adding a hydrocarbon surfactant, stirring at the rotating speed of 2800rpm for 1min, then adding a flame retardant, stirring at the rotating speed of 700rpm for 1min, and cooling to room temperature to obtain flame retardant liquid;
adding 28kg of water into a high-speed stirrer, then adding a fluorocarbon surfactant, stirring at the rotating speed of 1500rpm for 1.5min, then adding a tackifier, stirring at the rotating speed of 850rpm for 1.5min, then adding a stabilizer and an antifreeze, stirring at the rotating speed of 300rpm for 5min, and cooling to room temperature to obtain a glue solution;
2) adding the flame retardant liquid and the glue solution prepared in the step 1) into a high-speed stirrer, and stirring at the rotating speed of 850rpm for 3min to prepare a mother solution;
3) transferring the mother liquor prepared in the step 2) to a stirring dispersion tank, adding 700kg of water, and stirring at the rotating speed of 120rpm for 4min to obtain the product.
The fire extinguisher of the embodiment is a water-based fire extinguisher, and comprises a pressure steel cylinder, wherein the water-based fire extinguishing agent is filled in the pressure steel cylinder.
Example 5
The water-based fire extinguishing agent of the embodiment is prepared from the following raw materials in parts by weight: 4.50kg of hydrocarbon surfactant, 1.60kg of fluorocarbon surfactant, 2.05kg of tackifier, 0.78kg of flame retardant, 1.95kg of antifreeze, 0.85kg of stabilizer and 817kg of water.
Wherein the hydrocarbon surfactant is dodecyl dihydroxy ethyl betaine, and the fluorocarbon surfactant is FS-31 type fluorocarbon surfactant produced by DuPont company. The tackifier is formed by mixing starch grafted acrylamide polymer and cooked rubber powder in a mass ratio of 2: 1. The antifreezing agent is propylene glycol. The stabilizer consists of dimethyl phthalate and propylene glycol methyl ether according to the mass ratio of 3: 1. The flame retardant is composed of melamine cyanurate, aluminum diethylphosphinate, ammonium polyphosphate and aluminum hydroxide according to the mass ratio of 2:5:2: 1.
The preparation method of the water-based fire extinguishing agent comprises the following steps:
1) adding 65kg of water into a high-speed stirrer, adding a hydrocarbon surfactant, stirring at the rotating speed of 2500rpm for 2min, adding a flame retardant, stirring at the rotating speed of 600rpm for 2min, and cooling to room temperature to obtain flame retardant liquid;
adding 32kg of water into a high-speed stirrer, then adding a fluorocarbon surfactant, stirring at the rotating speed of 1600rpm for 1min, then adding a tackifier, stirring at the rotating speed of 900rpm for 1min, then adding a stabilizer and an antifreeze, stirring at the rotating speed of 300rpm for 5min, and cooling to room temperature to obtain a glue solution;
2) adding the flame retardant liquid and the glue solution prepared in the step 1) into a high-speed stirrer, and stirring at the rotating speed of 900rpm for 2.5min to prepare a mother solution;
3) transferring the mother liquor prepared in the step 2) to a stirring dispersion tank, adding 720kg of water, and stirring at the rotating speed of 120rpm for 4min to obtain the product.
The fire extinguisher of the embodiment is a water-based fire extinguisher, and comprises a pressure steel cylinder, wherein the water-based fire extinguishing agent is filled in the pressure steel cylinder.
Example 6
The water-based fire extinguishing agent of the embodiment is prepared from the following raw materials in parts by weight: 4.25kg of hydrocarbon surfactant, 1.75kg of fluorocarbon surfactant, 2.05kg of tackifier, 0.78kg of flame retardant, 1.68kg of antifreeze, 0.85kg of stabilizer and 790kg of water.
Wherein the hydrocarbon surfactant is dodecyl dihydroxy ethyl betaine, and the fluorocarbon surfactant is FS-31 type fluorocarbon surfactant produced by DuPont company. The tackifier is prepared by mixing starch grafted acrylamide polymer, cooked rubber powder and kaolin according to the mass ratio of 5:2: 1. The antifreezing agent is propylene glycol. The stabilizer consists of dimethyl phthalate and propylene glycol methyl ether according to the mass ratio of 3: 1. The flame retardant is composed of melamine cyanurate, aluminum diethylphosphinate, aluminum hydroxide and zinc borate according to the mass ratio of 2:5:1.5: 1.5.
The preparation method of the water-based fire extinguishing agent comprises the following steps:
1) adding 60kg of water into a high-speed stirrer, adding a hydrocarbon surfactant, stirring at the rotating speed of 2500rpm for 2min, adding a flame retardant, stirring at the rotating speed of 600rpm for 2min, and cooling to room temperature to obtain flame retardant liquid;
adding 30kg of water into a high-speed stirrer, then adding a fluorocarbon surfactant, stirring for 2min at the rotating speed of 1500rpm, then adding a tackifier, stirring for 2min at the rotating speed of 800rpm, then adding a stabilizer and an antifreeze, stirring for 5min at the rotating speed of 300rpm, and cooling to room temperature to obtain a glue solution;
2) adding the flame retardant liquid and the glue solution prepared in the step 1) into a high-speed stirrer, and stirring at the rotating speed of 800rpm for 3min to prepare a mother solution;
3) transferring the mother liquor prepared in the step 2) to a stirring dispersion tank, adding 700kg of water, and stirring at the rotating speed of 120rpm for 4min to obtain the product.
Comparative example 1
The comparative example differs from example 1 only in that the starting materials do not contain fluorocarbon surfactants.
The method for preparing the water-based fire extinguishing agent of this comparative example and the fire extinguisher refer to example 1.
Comparative example 2
This comparative example differs from example 1 only in that the preparation method of the water-based fire extinguishing agent comprises the steps of:
1) adding 100kg of water into a high-speed stirrer, then adding a hydrocarbon surfactant, a fluorocarbon surfactant, a flame retardant, a tackifier, a stabilizer and an antifreezing agent, and stirring at the rotating speed of 800rpm for 2min to prepare a mother solution;
2) transferring the mother liquor prepared in the step 1) to a stirring dispersion tank, adding 520kg of water, and stirring at the rotating speed of 100rpm for 5min to obtain the product.
Test examples
The water-based fire extinguishing agents and fire extinguishers obtained in examples 1 to 6 and comparative examples 1 to 2 were tested for the expansion ratio, fire extinguishing time and burning resistance time according to the methods in GB17427-1998 aqueous film-forming foam fire extinguisher, and the results are shown in the following tables.
TABLE 1 comparison of Performance of Water-based fire extinguishing Agents prepared in examples 1-6 and comparative examples 1-2
| Expansion ratio of foam | Time of fire extinguishing/s | 25% burn resistance time/min | |
| Example 1 | 8.9 | 31.7 | 17.7 |
| Example 2 | 9.1 | 27.5 | 18.2 |
| Example 3 | 9.3 | 24.3 | 18.5 |
| Example 4 | 9.3 | 22.7 | 19.1 |
| Example 5 | 9.5 | 22.3 | 19.3 |
| Example 6 | 9.6 | 21.1 | 19.8 |
| Comparative example 1 | 8.3 | 35.5 | 17.2 |
| Comparative example 2 | 7.8 | 32.8 | 17.9 |
As shown in the table, the water-based fire extinguishing agent prepared by the invention has higher foaming times, shorter fire extinguishing time which can reach 21.1-31.7s, and very good fire extinguishing performance. The burning resistance time is greatly enhanced and can reach 17.7-19.8 min.
Claims (1)
1. A preparation method of a water-based fire extinguishing agent is characterized by comprising the following steps: the water-based fire extinguishing agent is prepared from the following raw materials in parts by weight: 4.1-4.25 parts of hydrocarbon surfactant, 1.75-1.8 parts of fluorocarbon surfactant, 2.05 parts of tackifier, 0.78-0.85 part of flame retardant, 1.68 parts of antifreeze, 0.82-0.85 part of stabilizer and 790 parts of water 788-; the tackifier is prepared by combining at least one of cooked rubber powder and kaolin with a starch grafted acrylamide polymer in a mass ratio of 3: 5; the starch graft acrylamide copolymer is prepared by a method comprising the following steps: uniformly mixing cassava starch and water according to the mass ratio of 1:20, preserving heat at 65 ℃ for 45min to prepare gelatinized starch, then adding an acrylamide monomer with the mass 1.5 times that of the starch and a small amount of ammonium persulfate, and carrying out mixed reaction for 3 h; the stabilizer consists of dimethyl phthalate and propylene glycol methyl ether according to the mass ratio of 3-5: 1; the flame retardant is formed by mixing a flame retardant A, a flame retardant B and a flame retardant C, wherein the flame retardant A is melamine cyanurate, the flame retardant B is aluminum diethylphosphinate, and the flame retardant C is at least one of aluminum hydroxide and zinc borate; the mass ratio of the flame retardant A to the flame retardant B to the flame retardant C is 2:5-6: 2-3; the antifreezing agent is propylene glycol; the hydrocarbon surfactant is at least one of dodecyl diethanolamide and dodecyl dihydroxy ethyl betaine;
the preparation method of the water-based fire extinguishing agent comprises the following steps:
1) uniformly mixing a hydrocarbon surfactant, a flame retardant and water to prepare a flame retardant liquid;
uniformly mixing a fluorocarbon surfactant, a tackifier, a stabilizer, an antifreezing agent and water to prepare a glue solution;
2) uniformly mixing the flame retardant liquid prepared in the step 1) with the glue solution to prepare a mother solution, and diluting the mother solution to obtain the flame retardant rubber;
uniformly mixing the hydrocarbon surfactant, the flame retardant and water in the step 1), namely uniformly mixing the hydrocarbon surfactant and the water, then adding the flame retardant and uniformly mixing to prepare flame retardant liquid;
step 1), uniformly mixing the hydrocarbon surfactant and water, namely mixing the hydrocarbon surfactant and the water and stirring at the rotating speed of 2500-2800rpm for 1-2 min; after adding the flame retardant, stirring at the rotating speed of 600-700rpm for 1-2 min; adding a flame retardant, stirring, and cooling to room temperature to obtain a flame retardant liquid;
uniformly mixing the fluorocarbon surfactant, the tackifier, the stabilizer, the antifreezing agent and water in the step 1), namely uniformly mixing the fluorocarbon surfactant and the water, then adding the tackifier and uniformly mixing, and then adding the stabilizer and the antifreezing agent and uniformly mixing to obtain a glue solution;
in the step 1), the fluorocarbon surfactant and water are uniformly mixed, namely the fluorocarbon surfactant and water are mixed and stirred at the rotating speed of 1500rpm for 1-2 min; after the tackifier is added, stirring at the rotation speed of 800-; stirring at the rotating speed of 300-500rpm for 3-5min after adding the stabilizer and the antifreeze; adding a stabilizer and an antifreezing agent, stirring, and cooling to room temperature to obtain a glue solution;
in the step 2), the flame retardant liquid and the glue solution are uniformly mixed and stirred for 2-3min at the rotating speed of 800-;
the mother liquor dilution is to mix the mother liquor with water and stir at 100-150rpm for 3-5 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067160.3A CN111202938B (en) | 2020-01-20 | 2020-01-20 | Water-based fire extinguishing agent, preparation method thereof and fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067160.3A CN111202938B (en) | 2020-01-20 | 2020-01-20 | Water-based fire extinguishing agent, preparation method thereof and fire extinguisher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111202938A CN111202938A (en) | 2020-05-29 |
| CN111202938B true CN111202938B (en) | 2021-06-11 |
Family
ID=70781032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010067160.3A Active CN111202938B (en) | 2020-01-20 | 2020-01-20 | Water-based fire extinguishing agent, preparation method thereof and fire extinguisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111202938B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113209541B (en) * | 2021-05-15 | 2022-01-28 | 江苏阜民新材料有限公司 | Novel lithium battery fire extinguishing agent and preparation method thereof |
| CN114437580A (en) * | 2022-03-29 | 2022-05-06 | 深圳添德景行科技有限公司 | Graphene composite magnesium hydroxide modified fire retardant for fire fighting and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE786933A (en) * | 1971-07-28 | 1973-01-29 | Hoechst Ag | FIRE EXTINGUISHING AGENT |
| CN101125243A (en) * | 2007-09-10 | 2008-02-20 | 只茂海 | A kind general multi-purpose foam fire-extinguishing agent |
| CN104117176A (en) * | 2014-07-23 | 2014-10-29 | 安徽天元消防科技有限公司 | Aqueous film-forming foam extinguishing agent special for fire extinguishing bullet and throwing type fire extinguisher |
| CN104606838A (en) * | 2015-02-11 | 2015-05-13 | 中国石油化工股份有限公司 | Foam extinguishing agent capable of automatically foaming and preparation method of foam extinguishing agent |
| CN105749478A (en) * | 2016-01-12 | 2016-07-13 | 山东创能机械科技有限公司 | Ready-to-use type additive of water-based extinguishing agent and application method of the additive |
| CN109045545A (en) * | 2018-09-04 | 2018-12-21 | 魏景霞 | A kind of water base extinguishment additive agent |
-
2020
- 2020-01-20 CN CN202010067160.3A patent/CN111202938B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE786933A (en) * | 1971-07-28 | 1973-01-29 | Hoechst Ag | FIRE EXTINGUISHING AGENT |
| CN101125243A (en) * | 2007-09-10 | 2008-02-20 | 只茂海 | A kind general multi-purpose foam fire-extinguishing agent |
| CN104117176A (en) * | 2014-07-23 | 2014-10-29 | 安徽天元消防科技有限公司 | Aqueous film-forming foam extinguishing agent special for fire extinguishing bullet and throwing type fire extinguisher |
| CN104606838A (en) * | 2015-02-11 | 2015-05-13 | 中国石油化工股份有限公司 | Foam extinguishing agent capable of automatically foaming and preparation method of foam extinguishing agent |
| CN105749478A (en) * | 2016-01-12 | 2016-07-13 | 山东创能机械科技有限公司 | Ready-to-use type additive of water-based extinguishing agent and application method of the additive |
| CN109045545A (en) * | 2018-09-04 | 2018-12-21 | 魏景霞 | A kind of water base extinguishment additive agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111202938A (en) | 2020-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111202938B (en) | Water-based fire extinguishing agent, preparation method thereof and fire extinguisher | |
| CN102276970B (en) | Halogen-free antiflaming thin-film polycarbonate material and preparation method thereof | |
| CN110433445B (en) | Low-temperature water-based extinguishing agent and preparation method thereof | |
| CN110193163B (en) | Water-based extinguishing agent with adjustable proportion and preparation method thereof | |
| CN109260644A (en) | A kind of water-based extinguishing agent and preparation method thereof | |
| CN104804213A (en) | Preparation method of in-situ halogen-free flame-retardant expandable polystyrene | |
| CN104558483B (en) | A kind of spray coating type polyurethane rigid foam and preparation method thereof | |
| CN105802193A (en) | Halogen-free flame-retardant microcellular foam polyurethane material | |
| CN108976937A (en) | A kind of high flame retardant F-C paint and preparation method thereof | |
| CN109280259A (en) | A kind of distribution regulation is added with the EVA/PA6 flame retardant composite material and preparation method of OMMT | |
| CN114621490B (en) | Expandable composite graphite flame-retardant polystyrene bead and preparation method thereof | |
| CN115490915B (en) | Flame retardant, preparation method thereof and rigid polyurethane foam | |
| CN106492393B (en) | Fire extinguishing agent, preparation method and application thereof | |
| CN113493587A (en) | Flame-retardant EPS composite foam containing expandable graphite and preparation method thereof | |
| CN110551241B (en) | Preparation method of flame-retardant polyolefin and product thereof | |
| CN103709589A (en) | Mica-ABS (Acrylonitrile Butadiene Styrene) flame-retardant insulation material and preparation method thereof | |
| CN111202937B (en) | Dry powder fire extinguisher and preparation method thereof | |
| CN110760021B (en) | Vinyl chloride polymerization terminator with good low-temperature fluidity, and preparation method and application thereof | |
| CN106492394B (en) | Fire extinguishing agent, preparation method and application thereof | |
| CN111135521A (en) | Cold-resistant water-based extinguishing agent suitable for being used at-30 ℃ and preparation method thereof | |
| CN110917551A (en) | Water sand dry powder extinguishing agent | |
| CN115317844B (en) | Fireproof composition and preparation method thereof | |
| CN117797440A (en) | Low-temperature-resistant environment-friendly water-based extinguishing agent and preparation method thereof | |
| CN117085289A (en) | Temperature-sensitive foam extinguishing agent, preparation method and application thereof | |
| CN107812339A (en) | A kind of mountain fire extinguishing chemical of anti-resume combustion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |