CN114452582A - Preparation method and application of water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent - Google Patents
Preparation method and application of water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent Download PDFInfo
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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
- A62D1/0007—Solid extinguishing substances
- A62D1/0021—Microcapsules
Abstract
The invention discloses a preparation method and application of a water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent. The invention is prepared by compounding a surfactant serving as a main agent, an auxiliary agent and a solvent, and the temperature, the sequence, the speed, the pressure and the time are marked during preparation. Firstly, putting solvent distilled water into a circulating kettle with the constant temperature of 55-60 ℃, adding auxiliary agent sodium dodecyl benzene sulfonate, and stirring at medium speed until the auxiliary agent sodium dodecyl benzene sulfonate is completely dissolved; sequentially adding the following raw materials in parts by weight: span-20, span-80, Tween-85, 2-methyl-2, 4-pentanediol, ethyl oleate and polyethylene glycol; finally, pressurizing the circulating kettle for 0.7Mpa, and stirring for more than 480 minutes to obtain a finished product; the invention has neutral pH, complete biodegradation, targeted pressure and temperature characteristics, high cooling and oxygen isolating speed, high efficiency of wrapping smoke dust, hydrocarbon and harmful gas and emulsification, can quickly make methane and other explosive gases lose the explosive capacity, is suitable for various fire extinguishing equipment, and is used for the fields of gas control, smoke reduction and explosion suppression, various fire suppression and the like.
Description
Technical Field
The invention relates to a targeted high-molecular microcapsule water-based fire extinguishing additive, in particular to a preparation method and application of a water-based high-molecular microcapsule fire extinguishing smoke-reducing explosion suppressant.
Background
With the development of industry, new materials and new processes are more and more, flammable and explosive hazardous chemicals are more and more in the production process and life, the leakage reasons of fire, explosion and toxic and harmful substances are more and more complicated, the consequences are serious, and the social influence is severe. The method is particularly prominent in the fields of mines, petroleum and petrochemical industry, new energy and the like, secondary accidents such as toxic gas, smoke, heat, shock waves and fragments are easily generated in the accidents, and the life safety of people can be directly threatened. Meanwhile, the main point of research in the technical field of industrial safety is that not only is direct accident damage brought by explosion, but also secondary disasters such as fire caused by explosion can enable the explosion damage process to be continuous. The alternative linkage of the two, namely 'explosion caused by fire and fire caused by explosion' can generate more serious accident consequences. Meanwhile, due to the mobility of the mixed gas and the uncertainty of an ignition source, the working difficulty of explosion suppression and fire extinguishment is increased. How to rapidly and effectively extinguish fire, inhibit explosion and reduce loss to the maximum extent is always an important research direction in the technical field of safety production.
Water is the most common and cheap fire extinguishing agent, oxygen insulation, smoke reduction and explosion suppression material, and because the specific heat value of water is higher, the water can generate good cooling effect on combustion substances, and a large amount of water vapor is generated after heat absorption and vaporization to remove air in a combustion area, so that the water is used as the most common fire extinguishing agent. However, water has strong fluidity, and is easily re-combusted after being sprayed to a fire scene due to a large loss phenomenon. In high temperature fire fields such as class D fires, the fuel vaporizes before reaching the combustion zone. Therefore, for large or deflagration fires with large fire passing area, rapid fire, easy reignition and high difficulty in fighting fire, the water is difficult to extinguish in time. The improvement of the fire efficiency of water, the reduction of the loss rate in the releasing process and the enhancement of the effect of water on the comburent are the major hot points in the field of fire science at home and abroad at present.
The physical characteristics of latent heat of vaporization, viscosity, wetting power, adhesive force and the like of water are improved to improve the fire extinguishing performance of the water, the water fire extinguishing agent has positive significance for improving the effective oxygen-insulating and temperature-reducing capacity of the water, prolonging the retention time of the water in a combustion area, reducing the flow resistance of the surface of combustible, increasing the cooling protection area and the like, and can effectively save water and improve the fire extinguishing speed.
The emerging water mist technology in recent years has the characteristics of rapid fire extinguishing, low water consumption, small damage to protected objects and the like, and compared with the conventional fire extinguishing method, the water mist equipment has the advantages of low cost, simplicity, convenience, easy maintenance, no pollution to the environment due to the use of the water mist, and no ozone layer loss or greenhouse effect generation. When the fine water mist acts on flame, the mist drops quickly absorb heat and are vaporized into water vapor, the volume is enlarged by about 1700 times, and the vaporization can absorb a large amount of combustion reaction heat from the outside, so that the temperature of a combustion area is reduced, the reaction speed is reduced, and the expansion of combustion is well controlled.
The water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent can form a microcapsule coated explosive hydrocarbon when being added into water mist equipment, and achieves the effects of quickly extinguishing fire, reducing temperature, suppressing explosion, reducing smoke, isolating oxygen and coating.
Disclosure of Invention
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a fire-extinguishing smoke-reducing explosion-suppressing agent with water-base high-molecular microcapsule is prepared from surfactant, assistant and distilled water through proportional mixing, and features high temp, order of adding raw materials, stirring speed, pressure and time. The method specifically comprises the following steps:
(1) the preparation components are as follows: according to weight fraction, solvent 17 parts of distilled water; the main agent comprises 3 parts of span-20, 1.5 parts of span-80, 42.5 parts of Tween-80 and 3 parts of Tween-85; 12 parts of an auxiliary agent, namely 2-methyl-2, 4-pentanediol, 4 parts of ethyl oleate, 16 parts of polyethylene glycol and 1 part of sodium dodecyl benzene sulfonate;
(2) the main agent, the auxiliary agent and the solvent are put in sequence, and the constant-temperature stainless steel circulating reaction kettle is kept at the temperature of 50-55 ℃ for mixing and stirring;
(3) the main agent, the auxiliary agent and the solvent are added in sequence, and the main agent, the auxiliary agent and the solvent are sequentially a solvent: distilled water; auxiliary agent: sodium dodecylbenzenesulfonate; the main agent is as follows: span-20, span-80, tween-80 and tween-85; auxiliary agent: 2-methyl-2, 4-pentanediol, ethyl oleate, polyethylene glycol;
(4) the main agent, the auxiliary agent and the solvent are stirred at a medium speed in a constant-temperature stainless steel circulating reaction kettle until the main agent, the auxiliary agent and the solvent are completely dissolved, then the mixture is kept still for 10 to 11 minutes, and one raw material is put in again;
(5) after the main agent, the auxiliary agent and the solvent are put in and dissolved, standing for 25-30 minutes, keeping the stainless steel circulating reaction kettle at the constant temperature of 60-65 ℃ and the pressure of 0.6-0.8 Mpa, and stirring at a low speed for 480-500 minutes; the water-based polymer microcapsule fire extinguishing smoke-reducing explosion-suppressing agent is prepared.
In the scheme, the added first auxiliary agent is sodium dodecyl benzene sulfonate anionic surfactant and is added into the solvent in a second sequence.
In the scheme, the main agent is nonionic surfactant and is one or more of different components of span-20, span-80, Tween-80 and Tween-85.
In the scheme, the pH value of the compounded main agent and auxiliary agent is neutral, the compounded main agent and auxiliary agent are nontoxic and can be completely biodegraded, the HLB value of a formula compounding system is 10.43 +/-0.1, and the compounded main agent and auxiliary agent are completely water-soluble.
In the scheme, the solvent is distilled water and is put into the stainless steel circulating reaction kettle in a first sequence.
In the scheme, the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent comprises the following materials in parts by weight: 17 parts of a solvent, namely distilled water; the main agent comprises 3 parts of span-20, 1.5 parts of span-80, 42.5 parts of Tween-80 and 3 parts of Tween-85; 12 parts of an auxiliary agent, namely 2-methyl-2, 4-pentanediol, 4 parts of ethyl oleate, 16 parts of polyethylene glycol and 1 part of sodium dodecyl benzene sulfonate.
The preparation method and the application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent are characterized in that the feeding temperature of raw materials in the preparation process is controlled to be 55-60 ℃, and the temperature after feeding is controlled to be 60-65 ℃.
The preparation method and the application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent are characterized in that the adding and stirring speed of raw materials is medium speed in the preparation process, the mixture is kept still for 10-11 minutes before the next raw material is added, and the next raw material can be added after bubbles disappear.
The preparation method and the application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent are characterized in that the temperature is increased to 60-65 ℃ when the raw materials are kept still for 25-30 minutes after the feeding of the raw materials is finished.
The preparation method and the application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent are characterized in that the temperature is increased to 60-65 ℃ when the raw materials are kept still for 25-30 minutes after the raw materials are put in, the pressure is increased to 0.6-0.8 Mpa, and the raw materials are stirred at a low speed for 480-500 minutes.
Compared with the prior art, the invention has the beneficial effects that:
the invention can be used for extinguishing various fires, reducing smoke, suppressing explosion, cooling, retarding fire, removing toxic gas and wrapping explosive gas bags, can be canned into devices such as fire extinguishers, automatic fire extinguishing devices, water mist equipment, water spraying, fire hydrant systems, foam fire extinguishing systems and the like, and is mainly applicable to the fields comprising:
the system comprises various factories with fire hydrants, spraying systems or water mist systems and foam fire extinguishing systems, warehouses for storing hazardous chemicals, tank areas, office buildings, high-rise buildings, underground garages and the like. Because the combustible substance of the existing building space is more and more complicated, the existing water fire extinguishing measures can not rapidly inhibit explosion and extinguish fire, reduce temperature, prevent re-combustion and clear away toxic gas, can cause the waste of water sources, has higher possibility of generating secondary disaster accidents, and can cause the sheltering of escape sight of people because the smoke has low reducing speed. Because of the combustion of unknown chemicals, a large amount of toxic smog and combustible explosive gas are caused, which greatly harms the respiratory tract and nervous system of people, pollutes the environment, even causes the hazards of explosion, secondary generation of shock waves, bombing and collapsing, fragments and the like. The fire extinguishing agent has strong permeability and wettability, has extremely high efficiency particularly in the aspect of wrapping combustible steam, toxic gas and combustible free radicals in the bag, and can quickly extinguish new energy automobile fires, storage battery fires, deflagration, coal, petroleum and fire with big fire potential which is extremely difficult to control;
the fire extinguishing agent is used in combination with the water mist, can effectively extinguish electrical fire below 10KVA, can be widely applied to fire extinguishing of equipment and equipment for live working such as transformers, substations, electronic machine rooms, precision machine tools, engineering machinery, ships, containers, military equipment and the like, does not affect the equipment performance, and has the advantages of no fire extinguishing residue, low fire extinguishing cost and no pollution; the problems of annual pressure monitoring and inspection cost caused by using gas extinguishing agents such as heptafluoropropane, perfluorohexanone, hexafluoropropane, carbon dioxide, inert gas and the like are solved, and the fire prevention cost can be effectively reduced by using the fine water mist. The invention does not segregate and delaminate at normal temperature, can be normally used at-40 ℃ to 70 ℃ under the condition of adding the antifreezing agent, and can be stored and applied for a long time;
the invention can completely replace foam extinguishing agent, can be directly equipped with fire engine and foam extinguishing device, does not need to replace fittings and device, has no corrosion, does not need to refit equipment, and can be directly used. Compared with the traditional foam extinguishing agent, the film forming speed is higher, the functions are more, the pressure can be more than 7 kilograms, and the full-type fire can be suppressed by using the spraying and spraying gun heads. The fire extinguishing agent has the advantages that the fire extinguishing intensity is greatly reduced, the water consumption is reduced, the danger coefficient of fire suppression is reduced, explosive gas and toxic and harmful gas can be removed, the temperature in a suppression space can be rapidly reduced, smoke is reduced, and the fire extinguishing agent is a broad-spectrum and high-efficiency fire extinguishing agent;
the invention completely distinguishes the novel fire extinguishing agent from common chemical gas fire extinguishing, foam fire extinguishing, dry powder fire extinguishing and inert gas fire extinguishing agents, and a plurality of performance indexes are proved by detection and experiments of relevant national departments, the fire extinguishing agent is neutral and non-corrosive, has good encapsulation capacity on combustible free radicals, explosion steam, toxic gas and hydrocarbon, can emulsify hydrocarbon and combustion free radicals, prevents smoke from forming, reduces smoke dust and inhibits the generation of explosion gas, has outstanding capability of removing toxic gas, and is a high-efficiency ecological and non-toxic polymer micro-encapsulation fire extinguishing agent with integrated functions of temperature reduction, smoke reduction, explosion suppression, fire extinguishment, oxygen isolation and the like.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Example one
The embodiment provides a preparation method of a fire-extinguishing smoke-reducing explosion-suppressing agent of a water-based polymer microcapsule, wherein the water-based polymer microcapsule is prepared by compounding a main agent, an auxiliary agent and a solvent according to process design, and the preparation method specifically comprises the following steps:
(1) the preparation components are as follows: according to weight fraction, solvent 17 parts of distilled water; the main agent comprises 3 parts of span-20, 1.5 parts of span-80, 42.5 parts of Tween-80 and 3 parts of Tween-85; 12 parts of an auxiliary agent, namely 2-methyl-2, 4-pentanediol, 4 parts of ethyl oleate, 16 parts of polyethylene glycol and 1 part of sodium dodecyl benzene sulfonate;
(2) the main agent, the auxiliary agent and the solvent are put in sequence, and the constant-temperature stainless steel circulating reaction kettle is kept at the temperature of 50-55 ℃ for mixing and stirring;
(3) the main agent, the auxiliary agent and the solvent are added in sequence, and the main agent, the auxiliary agent and the solvent are sequentially a solvent: distilled water; auxiliary agent: sodium dodecylbenzenesulfonate; a main agent: span-20, span-80, tween-80 and tween-85; auxiliary agent: 2-methyl-2, 4-pentanediol, ethyl oleate, polyethylene glycol;
(4) the main agent, the auxiliary agent and the solvent are stirred at a medium speed in a constant-temperature stainless steel circulating reaction kettle until the main agent, the auxiliary agent and the solvent are completely dissolved, then the mixture is kept still for 10 to 11 minutes, and one raw material is put in again;
(5) after the main agent, the auxiliary agent and the solvent are put in and dissolved, standing for 25-30 minutes, keeping the stainless steel circulating reaction kettle at the constant temperature of 60-65 ℃ and the pressure of 0.6-0.8 Mpa, and stirring at a low speed for 480-500 minutes; preparing a water-based polymer microcapsule fire extinguishing smoke reducing explosion suppressant;
wherein, the formula mainly comprises a nonionic surfactant (main agent): span 20(S-20, hydrophile-lipophile balance 8.6), span 80(S-80, hydrophile-lipophile balance 4.3), Tween 80(T-80, hydrophile-lipophile balance 15.0), Tween 85(T-85, hydrophile-lipophile balance 11); the four nonionic surfactants were compounded through multiple rounds of orthogonal experiments. Through multi-round test, the emulsification and solubilization effects on the light lubricating oil are good, and the stability of a medicament system is high; the two emulsifiers, namely the span 80 and the Tween 80 in the formula respectively have good absorption effects on methane and combustible explosive gas; in order to ensure that the emulsifying capacity and the solubilizing effect are enhanced, two additional emulsifiers, namely span 20(S-20) and tween 85(T-85) are added, and the two series of products are compounded to enhance the strength of cysts and the strength of a mask so as to enable a cyst system to be more stable; a small amount of anionic surfactant sodium dodecyl benzene sulfonate (LAS) is added into the nonionic surfactant for compounding so as to enhance the emulsifying capacity and the solubilizing effect of the microcapsules. Because one end of the molecule of the microcapsule material is a hydrophilic polar end, the microcapsule material is easy to dissolve in water; the other end is a hydrophobic and oleophilic nonpolar end; and the two ends can move freely and flexibly, and can respectively hold oily combustible molecules and water for wrapping and neutralizing. After the microcapsule material is added into a water body, the surface tension of an aqueous solution or the surface (interface) tension of an oil-water system can be reduced. The surface tension of water is reduced to realize larger surface wetting to the fuel and enhance the penetration to the micropores of the fuel, so that the temperature of the fuel can be quickly reduced; the microcapsule material can form and maintain the microcapsules around liquid-phase and gas-phase fuel molecules at the same time, so that the fuel becomes an inert material and cannot be combusted, thereby reducing the concentration of fuel oil or chemicals;
the nonionic surfactant is soluble in water without dissociation, the lipophilic group in the molecule is approximately the same as that of the ionic surfactant, and the hydrophilic group is mainly composed of a certain number of oxygen-containing groups. The nonionic surfactant does not ionize in water, is an amphiphilic structure molecule taking hydroxyl (-OH) or ether bond (R-O-R') as a hydrophilic group, and has weak hydrophilicity due to the hydroxyl and ether bond, so that the molecule needs to contain a plurality of groups to show certain hydrophilicity, which is different from anionic and cationic surfactants which can show hydrophilicity only through one hydrophilic group. The nonionic surfactant has the characteristic of non-ionization in water, so that the nonionic surfactant is superior to an ionic surfactant in certain aspects, such as better solubility in water and organic solvents, high stability in a solution towel, and difficulty in being influenced by strong electrolyte inorganic salts, acid and alkali and the like. The surfactant has good compatibility with other types of surfactants, so the surfactant can be mixed well for use. The nonionic surfactant has good hard water resistance and low foaming property, so that the nonionic surfactant is suitable for being used as a special detergent. It has many properties such as dispersion, emulsification, foam, wetting, solubilization, etc., and thus has important applications in many fields;
the solubilizing power of ionic surfactants increases as the hydrocarbon chain grows, while the solubilizing power of nonionic surfactants increases as the oxyethylene chain decreases. Therefore, the surfactant with proper HLB value, large solubilizing quantity, no toxicity and no irritation is best used for the solubilizer. Non-ionic surfactants are preferred as solubilizers in view of the toxicity and irritation associated with surfactants. Because the hydrophilic-lipophilic balance (HLB) of the surfactant mixed compound system has additivity, the HLB value of the mixed system can be calculated by the HLB values of all the components and the corresponding mass fractions, the HLB value of the raw materials is as follows, 1-1
The HLB value of a compound system of the formula can be calculated to be 10.43 through the HLB value and the corresponding mass fraction of the corresponding raw materials of the formula, and the compound system belongs to an oil-in-water surfactant with wetting and spreading functions; the formula is shown in tables 1-2
The finished product prepared by the post-compounding process has fruity flavor and pink color, the pH value is 7.0 +/-0.6, the surface tension is 16dyn/cm, the specific gravity is 1.102 +/-0.2, and the finished product is completely dissolved in water and is not separated. The finished product has good stability, good water solubility, no segregation, good pressure resistance of chemical cocoons, stable emulsibility, wetting property and the like. After the antifreezing agent is added, the cold resistance is-40 ℃ to 70 ℃.
Example two
The embodiment provides an application of a water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent, wherein the product is combined with water for application, the proportion is adjusted according to different application requirements, the pressure of a spraying solution is more than or equal to 0.7Mpa, the proportion of the minimum finished product of the A-class fire is more than or equal to 0.25%, the proportion of the B-class fire is more than or equal to 0.5%, the proportion of the C-class fire is 3%, the proportion of the D-class fire is more than or equal to 7%, the proportion of the E-class fire is more than or equal to 1%, and the proportion of the F-class fire is more than or equal to 2%; the smoke reduction is more than or equal to 3 percent, and the explosion suppression is more than or equal to 5 percent;
the pressure of the fire extinguisher can be more than or equal to 0.7Mpa and less than 0.7Mpa, which can affect the water tension and the wrapping capacity of the dispersion capsule of the microcapsule and can be suitable for devices and equipment such as fire trucks, water foam devices, fire hydrant devices, water spraying systems, high-medium-low pressure water mist fire extinguishing systems, water system fire extinguishers and the like;
the invention relates to a water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent, which is a compound application of a nonionic surfactant and an auxiliary agent, takes the characteristics of water and a fire suppression principle into consideration, fully utilizes the characteristics of encapsulation, emulsified hydrocarbon and carbon particles of the nonionic surfactant, enhances the air isolation capability and the moisture and water tension change capability of the nonionic surfactant through the auxiliary agent and the processes of special calibration such as temperature, stirring speed, pressure, feeding sequence and the like, and combines devices such as fire-extinguishing equipment, equipment and the like to change water pressure to form the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent with pressure targeting and temperature targeting meanings;
the fire extinguishing agent can perform high-efficiency fire extinguishing from three angles of temperature reduction, oxygen isolation and combustion chain prevention, can be used as a full-energy water-based fire extinguishing agent for extinguishing A-type, B-type, C-type, D-type, E-type and F-type fires, and can also be independently used as a smoke reducing agent, a temperature reducing agent, a methane melting agent, a hydrogen sulfide degrading agent, an explosion steam control agent and the like. And can be dissolved in water with seawater, sewage, fresh water and pure water without affecting the basic performance of the product. The fire extinguishing agent can be used for extinguishing all kinds of fire disasters in land, ocean, water-deficient and drought areas and the like, and can also be used in the fields of coal mine, petroleum and petrochemical industry, production, storage and transportation of dangerous chemicals, ocean transportation, civil buildings, factories, subways, military equipment, vehicles and the like. The fire-fighting and safety production tool does not need to be changed, and the finished product can be used after being added. The coating is non-toxic, ecological, non-corrosive, biodegradable, and good in weather resistance, and can be stored for a long time;
the present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The invention discloses a preparation method and application of a water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent, which is characterized in that the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent is prepared by taking a surfactant as a main agent, and taking an auxiliary agent and distilled water as raw materials through compounding, and the preparation process comprises the following steps: (1) the preparation components are as follows: according to weight fraction, solvent 17 parts of distilled water; the main agent comprises 3 parts of span-20, 1.5 parts of span-80, 42.5 parts of Tween-80 and 3 parts of Tween-85; 12 parts of an auxiliary agent, namely 2-methyl-2, 4-pentanediol, 4 parts of ethyl oleate, 16 parts of polyethylene glycol and 1 part of sodium dodecyl benzene sulfonate; (2) the main agent, the auxiliary agent and the solvent are mixed and stirred in a constant-temperature stainless steel circulating reaction kettle at the temperature of 50-55 ℃; (3) the main agent, the auxiliary agent and the solvent are added in sequence, and the main agent, the auxiliary agent and the solvent are sequentially a solvent: distilled water; auxiliary agent: sodium dodecylbenzenesulfonate; a main agent: span-20, span-80, tween-80 and tween-85; auxiliary agent: 2-methyl-2, 4-pentanediol, ethyl oleate, polyethylene glycol; (4) the main agent, the auxiliary agent and the solvent are stirred at a medium speed in a constant-temperature stainless steel circulating reaction kettle until the main agent, the auxiliary agent and the solvent are completely dissolved, then the mixture is kept still for 10 to 11 minutes, and one raw material is put in again; (5) after the main agent, the auxiliary agent and the solvent are put in and dissolved, standing for 25-30 minutes, keeping the stainless steel circulating reaction kettle at the constant temperature of 60-65 ℃ and the pressure of 0.6-0.8 Mpa, and stirring at a low speed for 480-500 minutes; the water-based polymer microcapsule fire extinguishing smoke-reducing explosion-suppressing agent is prepared.
2. The preparation method and the application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent as claimed in claim 1, wherein the pH value of the compounded main agent and auxiliary agent is neutral, the compounded main agent and auxiliary agent are non-toxic and completely biodegradable, the HLB value of the formulated compound system is 10.43 +/-0.1, and the formulated compound system is completely water-soluble.
3. The preparation method and application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent as claimed in claim 1, wherein the main agent is a non-ionic surfactant which is one or more of different components of span-20, span-80, tween-80 and tween-85.
4. The preparation method and application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent as claimed in claim 1, wherein the solvent is distilled water and is put into a stainless steel circulating reaction kettle in a first order.
5. The preparation method and the application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent as claimed in claim 1, characterized in that the surfactant: the sodium dodecyl benzene sulfonate auxiliary agent is an anionic surfactant and is added into the solvent in a second sequence.
6. The preparation method and the application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent as claimed in claim 1, wherein the temperature of the raw material is controlled to be 55-60 ℃ during the preparation process, and the temperature is controlled to be 60-65 ℃ after the completion of the preparation process.
7. The preparation method and application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent according to claim 1, wherein the stirring speed of the raw materials in the preparation process is medium, the raw materials are kept still for 10-11 minutes before the next raw material is added, and the next raw material can be added after bubbles disappear.
8. The preparation method and application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent as claimed in claim 1, wherein the temperature is increased to 60-65 ℃ when the raw material is kept still for 25-30 minutes after the raw material is put into the capsule.
9. The preparation method and application of the water-based polymer microcapsule fire-extinguishing smoke-reducing explosion-suppressing agent according to claim 1, characterized in that after the raw materials are put into the device, the temperature is increased to 60-65 ℃ when the device stands still for 25-30 minutes, then the pressure is increased to 0.6-0.8 Mpa, and the device is kept stirring at low speed for 480-500 minutes.
10. According to weight fraction, solvent 17 parts of distilled water; the main agent comprises 3 parts of span-20, 1.5 parts of span-80, 42.5 parts of Tween-80 and 3 parts of Tween-85; the auxiliary agent comprises 12 parts of 2-methyl-2, 4-pentanediol, 4 parts of ethyl oleate, 16 parts of polyethylene glycol and 1 part of sodium dodecyl benzene sulfonate.
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| CN110960824A (en) * | 2019-12-19 | 2020-04-07 | 应急管理部天津消防研究所 | Hydrocarbon inflammable liquid flowing fire extinguishing agent |
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| CN101224375A (en) * | 2007-10-24 | 2008-07-23 | 中国矿业大学(北京) | Absorbent compounds for absorbing gaseous |
| CN110960824A (en) * | 2019-12-19 | 2020-04-07 | 应急管理部天津消防研究所 | Hydrocarbon inflammable liquid flowing fire extinguishing agent |
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