CN111214800A

CN111214800A - Novel high-molecular water-based extinguishing agent and preparation method thereof

Info

Publication number: CN111214800A
Application number: CN201811414872.7A
Authority: CN
Inventors: 聂正清; 聂正芳; 拓明方; 马锐杰
Original assignee: Ningxia Wanhui Yunhe Fire Fighting Technology Co ltd
Current assignee: Ningxia Wanhui Yunhe Fire Fighting Technology Co ltd
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2020-06-02
Also published as: CN114042283A

Abstract

The invention discloses a novel high-molecular water-based fire extinguishing agent and a preparation method thereof, wherein the novel high-molecular water-based fire extinguishing agent is prepared from the following raw materials in parts by mass: 2-4 parts of ammonium polyphosphate, 6-8 parts of sodium carbonate, 6-8 parts of sodium silicate, 0.5-1 part of polyacrylamide, 2-4 parts of polyethylene glycol, 6-8 parts of dioctyl sodium sulfosuccinate, 12-16 parts of dodecyl betaine, 6-8 parts of sodium chloride, 5-9 parts of sodium benzoate, 7-13 parts of xanthan gum, 15-25 parts of n-butyl alcohol, 8-14 parts of a composite anti-freezing agent, 8-10 parts of a foaming agent, 6-10 parts of a surfactant, 8-14 parts of a surfactant and 80-100 parts of water. Has the advantages that: the fire extinguishing agent has the advantages of obvious oxygen isolation and suffocation effect, uniform component mixing, good stability, no precipitation along with the change of storage environment, no influence on the fire extinguishing effect after long-term storage, optimized proportion among components, optimal synergistic effect, capability of forming a water film on the surface of a combustion object, oxygen isolation, cooling, heat resistance and flame retardance, and extremely strong flame retardance and anti-recrudescence property.

Description

Novel high-molecular water-based extinguishing agent and preparation method thereof

Technical Field

The invention relates to the technical field of fire extinguishing agents, in particular to a novel high-molecular water-based fire extinguishing agent and a preparation method thereof.

Background

Substances that can effectively destroy combustion conditions and terminate combustion are called fire extinguishing agents. The fire extinguishing mechanism of the fire extinguishing agent is mainly cooling, suffocation, isolation and chemical inhibition. Most of the products produced by fire extinguishing agent manufacturers in China market at present are BC, ABC dry powder, aerosol, superfine dry powder, light water foam, protein and fluoroprotein common fire extinguishing agents.

BC. The ABC dry powder fire extinguishing agent has obvious limitation, is not suitable for a fire extinguishing system, only can be filled with dry powder fire extinguishers of various specifications, has weak capability of extinguishing A, B-class fire, small fire extinguishing area and no re-combustion resistance. The product is harmful to human body when used in a place with dense people, and can harm the health of people when used in large quantity, and suffocate people when used seriously. The protein, the fluorine protein and the light water foam fire extinguishing agent are successfully developed and researched in eighties, and the protein and fluorine protein products are black in color, have odor, are single in fire extinguishing, cannot extinguish A, C, E, F-type fire, are high in corrosivity and short in quality guarantee period (only two years).

Chinese patent discloses a fire extinguishing agent (200710120280.X) comprising: a fluorosurfactant, an emulsifier or fatty alcohol, a flame retardant, an anionic surfactant, a thickener, urea and water, and optionally, an antifreeze. Chinese patent discloses an environment-friendly water-based fire extinguishing agent (201610866037.1), which is prepared from the following main raw materials in parts by weight: foaming agent: 4-8 parts of alkyl glycoside, surfactant: 3-6.5 parts of sodium dodecyl benzene sulfonate, spreading anti-burning agent: 1-3 parts of polyethylene glycol, a tackifier: 0.5-1.5 parts of carboxymethyl cellulose, and an antifreeze agent: 8-16 parts of dipropylene glycol dimethyl ether, and a cosolvent: 3-6.5 parts of urea, and a wetting agent: 0.5-1.5 parts of sodium di (2-ethylhexyl) succinate sulfonate and 43-87 parts of water. Chinese patent discloses a water-based fire extinguishing agent (201510770682.9), which comprises 0.5-5% of inorganic salt, 0.1-1% of surfactant, 0.5-2% of foaming agent, 1-20% of fire retardant, 10-20% of antifreeze, 0.1-1% of penetrating agent, 1-2% of emulsifier and 65-85% of water.

But the fire extinguishing objects of the products are single, the re-ignition resistance is weak, and several special fires can not be extinguished at the same time,

an effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Aiming at the problems in the related art, the invention provides a novel high-molecular water-based fire extinguishing agent and a preparation method thereof, so as to overcome the technical problems in the prior related art.

The technical scheme of the invention is realized as follows:

according to one aspect of the present invention, a novel polymeric water-based fire extinguishing agent is provided.

The novel high-molecular water-based extinguishing agent is prepared from the following raw materials in parts by weight:

2-4 parts of ammonium polyphosphate, 6-8 parts of sodium carbonate, 6-8 parts of sodium silicate, 0.5-1 part of polyacrylamide, 2-4 parts of polyethylene glycol, 6-8 parts of dioctyl sodium sulfosuccinate, 12-16 parts of dodecyl betaine, 6-8 parts of sodium chloride, 5-9 parts of sodium benzoate, 7-13 parts of xanthan gum, 15-25 parts of n-butyl alcohol, 8-14 parts of a composite anti-freezing agent, 8-10 parts of a foaming agent, 6-10 parts of a surfactant, 8-14 parts of a surfactant and 80-100 parts of water.

Further, the surfactant comprises the following raw material components: 2-6 parts of hydrocarbon surfactant and 6-8 parts of carboxymethyl cellulose.

Further, the foaming agent comprises the following raw material components: 8-10 parts of alkyl glycoside.

Further, the surfactant comprises the following raw material components: 6-10 parts of sodium dodecyl benzene sulfonate.

Further, the composite antifreeze agent comprises the following raw material components: 2-4 parts of calcium chloride, 2-4 parts of ethanol and 4-6 parts of ethylene glycol.

According to another aspect of the present invention, a method for preparing a novel polymeric water-based fire extinguishing agent is provided.

The preparation method of the novel polymer water-based extinguishing agent comprises the following steps:

weighing all raw materials required by the novel high-molecular water-based extinguishing agent according to the parts by weight;

adding 2/3 of water into the stirring kettle, and heating to the budget temperature;

stirring and mixing the weighed ammonium polyphosphate, sodium carbonate, sodium silicate, polyacrylamide, polyethylene glycol, dioctyl sodium sulfosuccinate, dodecyl betaine, sodium chloride, sodium benzoate, xanthan gum and n-butyl alcohol to form a mixture I;

putting the first mixture into a stirring kettle which is heated to a certain temperature and contains 2/3 of water, and stirring to form a first mixed solution;

mixing 1/3 of water with the composite antifreeze agent, putting the mixture into the first mixed solution, and continuously stirring to form a second mixed solution;

mixing a hydrocarbon surfactant, carboxypropyl methyl cellulose, alkyl glycoside and sodium dodecyl benzene sulfonate to form a mixture II;

and slowly adding the mixture II into the mixed solution II, heating and stirring to form a finished product.

Further, 2/3 of the water is added into the stirring kettle and heated to 37 ℃.

Further, the first mixture is put into a stirring kettle with 2/3 of water and heated to a certain temperature, and stirring is carried out to form a first mixed solution, wherein the stirring speed is 60-90 revolutions per minute, and the stirring time is 50-70 minutes.

Further, the composite antifreeze agent is added into the mixed solution I and then is continuously stirred, the stirring speed of the formed mixed solution II is 30-50 revolutions per minute, and the stirring time is 30-50 minutes.

Further, slowly adding the mixture II into the mixed solution II, heating and stirring to form a finished product, adding the mixture II at the speed of 1/10 per 30 minutes of the mixture II, wherein the heating speed is 2 ℃ per 20 minutes, finally heating to 50 ℃, the stirring speed is 60-90 r/min, and the stirring time is 4.5 hours.

The invention adopts the following raw materials in parts:

ammonium polyphosphate: ammonium polyphosphate is also known as ammonium polyphosphate or condensed ammonium phosphate (APP). The ammonium polyphosphate is nontoxic and tasteless, does not generate corrosive gas, has small hygroscopicity and high thermal stability, and is a non-halogen flame retardant with excellent performance. But also has the corresponding disadvantages of larger hygroscopicity due to the smaller polymerization degree of the current process and great influence on the mechanical properties of engineering plastics. APP is widely applied to expansion type fireproof coatings, polyethylene, polypropylene, polyurethane, epoxy resin, rubber products, fiber boards, dry powder extinguishing agents and the like, and is a high-efficiency phosphorus non-halogen smoke-eliminating flame retardant which is safe to use. APP has high flame retardance, dimensional stability, hydrolysis resistance and heat resistance in polyurethane rigid foam. The generation amount of toxic and corrosive gases on the rigid polyurethane foam can be even compared with similar materials which are not flame-retardant. The amounts of carbon monoxide and hydrogen chloride produced are also much lower than halogen-containing polyurethane foams. Ammonium polyphosphate has an expansion flame-retardant function, so that the ammonium polyphosphate is more favorable for reducing smoke and resisting dripping, is solid, and is easy to disperse in polyol. In general, polyurethane components containing higher polyester polyols are more suitable for flame retarding with APP than polyether polyol components. The using amount is 5-20 parts. The APP is suitable for hard polyurethane foam plastics and polyester soft polyurethane foam plastics, and is also suitable for other resins, adhesives and coatings.

sodium carbonate (aluminum oxide), chemical formula Al2O3, is a high hardness compound, melting point is 2054 ℃, boiling point is 2980 ℃, and ionic crystal which can be ionized at high temperature is commonly used for manufacturing refractory materials, industrial sodium carbonate is prepared from bauxite (Al2O 3.3H 2O) and diaspore, Al2O3 with high purity requirement is generally prepared by a chemical method, Al2O3 has a plurality of homogeneous and heterogeneous crystals, more than 10 are known at present, and 3 crystal forms are mainly adopted, namely α -Al2O3, β -Al2O3 and gamma-Al2O3, wherein the structures are different and have different properties, and the crystal forms are almost completely converted into α -Al2O3 at the high temperature of more than 1300 ℃.

Sodium silicate: the sodium silicate is a water-soluble silicate, and the water solution is water glass, and is an ore binder. The chemical formula is R2O. nSiO2, wherein R2O is alkali metal oxide, and n is the ratio of the mole number of silicon dioxide and the mole number of the alkali metal oxide, and is called the mole number of the water glass. The water glass commonly used in construction is an aqueous solution of sodium silicate. (Na 2O. nSiO2), an analytical reagent, a fire retardant and a binder. Application A of water glass, and coating surface of material to improve weather resistance of material, wherein the density is 1.35g/cm³The water glass is used for impregnating or coating porous materials such as clay bricks, cement concrete, silicate concrete, stone and the like, so that the compactness, strength, impermeability, frost resistance, water resistance and the like of the materials can be improved. B. The water glass and the calcium chloride solution are alternately injected into the reinforced soilWhen the silicic acid gel is in the soil, the generated silicic acid gel is in a swelling state by absorbing water in the soil under a humid environment, so that the soil is solidified. C. Preparing the quick-setting waterproof agent. D. The water glass, the granulated blast furnace slag powder, the sand and the sodium fluosilicate are mixed according to a proper proportion and then directly pressed into the brick wall crack to play the roles of bonding and reinforcing. E. The sodium silicate aqueous solution can be used as the outer surface of the fire door. F. Can be used for manufacturing acid-resistant daub and used for linings of furnaces and cellars. Physicochemical Properties G preparation of silica gel

Polyacrylamide: polyacrylamide (PAM) is a linear high molecular polymer, and products are mainly divided into two forms, namely dry powder and colloid. The molecular weight can be divided into three types, namely low molecular weight (less than 100 ten thousand), medium molecular weight (200-400 ten thousand) and high molecular weight (more than 700 ten thousand) according to the average molecular weight. They can be classified into nonionic, anionic and cationic types according to their structures. The anion is mostly a hydrolyzed form (HPAM) of PAM. The main chain of the polyacrylamide is provided with a large amount of acylamino, the chemical activity is very high, a plurality of polyacrylamide derivatives can be prepared by modification, and the product is widely applied to industries such as papermaking, mineral separation, oil extraction, metallurgy, building materials, sewage treatment and the like. The polyacrylamide is used as a lubricant, a suspending agent, a clay stabilizer, an oil displacement agent, a fluid loss agent and a thickening agent, is widely applied to well drilling, acidification, fracturing, water plugging, well cementation, secondary oil recovery and tertiary oil recovery, and is an extremely important oilfield chemical. 1) The product can be selected according to the sludge property when the sludge dewatering device is used for sludge dewatering, sludge dewatering can be effectively carried out before sludge enters filter pressing, during dewatering, the generated flocs are large, filter cloth is not stuck, the sludge is not scattered during filter pressing, the flowing sludge cake is thick, the dewatering efficiency is high, and the water content of the sludge cake is below 80%. 2) The product is used for treating domestic sewage and organic wastewater, and shows positive electric property in a matching or alkaline medium, so that flocculation precipitation is carried out on sewage with negative charges of suspended particles in the sewage, and clarification is very effective. For example, waste water from grain production, paper making, municipal sewage plant, beer, monosodium glutamate plant, sugar production, high organic content, feed, textile printing and dyeing and the like, the effect of cationic polyacrylamide is several times or ten times higher than that of anionic, nonionic polyacrylamide or inorganic salts, because such waste water generally has negative charges. 3) The flocculant for treating tap water by using river water as a water source has the advantages of small using amount, good effect, low cost and better compound using effect especially with an inorganic flocculant, and can be used as a high-efficiency flocculant for water works in Yangtze river, yellow river and other watersheds. 4) Reinforcing agent for papermaking and other auxiliary agents. The retention rate of fillers, pigments and the like and the strength of paper are improved. 5) It can be used as chemical assistant in oil field, such as clay antiswelling agent and thickening agent for acidifying in oil field. 6) The sizing agent is used for spinning, and has the advantages of stable performance of sizing agent, less slurry falling, low fabric end breakage rate and smooth cloth cover. The product is nontoxic when being packed and stored, and is moisture-proof and rainproof, and can avoid sunshine. And (3) storage period: for 2 years, 25kg paper bag (Plastic bag inside and plastic bag outside plastic bag)

Polyethylene glycol: the series products are non-toxic, non-irritant, slightly bitter in taste, good in water solubility and good in compatibility with a plurality of organic matter components. They have excellent lubricity, moisture retention, dispersibility, adhesives, antistatic agents, softeners and the like, and are widely applied in industries such as cosmetics, pharmacy, chemical fibers, rubber, plastics, paper making, paint, electroplating, pesticides, metal processing, food processing and the like, and polyethylene glycol fatty acid esters are widely applied in the cosmetic industry and the pharmaceutical industry. Polyethylene glycol has many excellent properties: water-soluble, non-volatile, physiologically inert, mild, lubricious, and moisturized, soft, pleasant after-feel, etc. The polyethylene glycol can be selected in different relative molecular mass fractions to alter the viscosity, hygroscopicity and texture of the product. Polyethylene glycols having a low relative molecular mass (Mr < 2000) are suitable for use as humectants and consistency regulators, in creams, lotions, toothpaste, shaving creams and the like, and also in non-cleansing hair care preparations to impart silky luster to the hair. Polyethylene glycol having a high relative molecular mass (Mr > 2000) is suitable for lipstick, deodorant stick, soap, shaving soap, foundation, and cosmetic. Polyethylene glycol is also used as a suspending agent and thickener in cleaning agents. In the pharmaceutical industry, as bases for ointments, creams, ointments, lotions and suppositories. Polyethylene glycols (e.g., polyethylene glycol NF, Dow chemical Co) commercially available for food and pharmaceutical use are more suitable for cosmetic use. The application of methoxy polyethylene glycol and polypropylene glycol is similar to that of polyethylene glycol. Polyethylene glycol is widely used in various pharmaceutical preparations such as injections, topical preparations, ophthalmic preparations, oral and rectal preparations. The solid polyethylene glycol can be added with liquid polyethylene glycol to adjust viscosity, and can be used for topical ointment; polyethylene glycol mixtures may be used as suppository bases; aqueous solutions of polyethylene glycol may be used as suspending agents or to adjust the viscosity of other suspension media; the combination of polyethylene glycol and other emulsifiers can increase the stability of the emulsion. In addition, polyethylene glycol is also used as a film coating agent, a tablet lubricant, a controlled release material, and the like.

Dioctyl sodium sulfosuccinate: the dioctyl sodium sulfosuccinate is a chemical substance, and the molecular formula of the dioctyl sodium sulfosuccinate is C20H37O7 SNa. An anionic surfactant. Is widely used as an emulsifier and a detergent for shampoos, detergents, toothpastes and the like. Has excellent foaming property, wetting property and cleaning property. Has no toxicity and little irritation to skin. Is stable in hard water and can promote the formation of oil-in-water type emulsifier

Dodecyl betaine: dodecyl betaine is a chemical substance with the molecular formula of C16H33NO 2. The compound can be used for preparing shampoos, foam baths, sensitive skin preparations, children detergents and the like, can also be used as fibers, fabric softeners, antistatic agents, calcium soap dispersants, sterilization and disinfection detergents, gel emulsifiers for rubber industry, rabbit wool fulling agents, fire-extinguishing foam agents and the like, and also can be used as a synergist of a pesticide glyphosate.

Sodium chloride: sodium chloride (Sodium chloride), chemical formula NaCl, colorless cubic crystal or fine crystal powder, and has good taste. The appearance is white crystal, the source of the crystal is mainly seawater, and the crystal is the main component of the salt. Is easily soluble in water and glycerol, and slightly soluble in ethanol (alcohol) and liquid ammonia; insoluble in concentrated hydrochloric acid. Impure sodium chloride is deliquescent in air. [1] The stability is good, the water solution is neutral, the hydrogen, chlorine and caustic soda (sodium hydroxide) and other chemical products (generally called chlor-alkali industry) are produced by the method of electrolyzing saturated sodium chloride solution in industry, and the product can be used for ore smelting (producing active metal sodium by electrolyzing melted sodium chloride crystal), and can be used for preparing physiological saline in medical treatment and can be used for seasoning in life.

Sodium benzoate: sodium benzoate (sodium benzoate) is a white granular or crystalline powder, odorless or slightly benzoin-smelling, slightly sweet in taste, and astringent in taste. Also known as sodium benzoate, relative molecular mass 144.12. Is stable in air, is easily soluble in water, has pH of 8, and is soluble in ethanol. Benzoic acid and its salts are broad spectrum antimicrobial agents, but its antimicrobial effectiveness depends on the PH of the food product. The sterilizing and bacteriostatic effects are enhanced along with the increase of the acidity of the medium, and the sterilizing and bacteriostatic effects are lost in an alkaline medium. The optimum pH value for corrosion prevention is 2.5-4.0. [ USE I ] is mainly used as food preservative, and also used for preparing medicines, dyes and the like. [ USE II ] is used in the pharmaceutical industry and in plant genetic research, and also as a dye intermediate, a bactericide, and a preservative. [ USE III ] preservatives; an antimicrobial agent. [ USE IV ] sodium benzoate is also an important acid-type food preservative. When used, the compound is converted into the effective form of benzoic acid. The range and amount of use is referred to benzoic acid. In addition, the compound can also be used as a preservative of feed. [ USE V ] the product is useful as a food additive (antiseptic), a bactericide in the pharmaceutical industry, a mordant in the dye industry, a plasticizer in the plastic industry, and an intermediate for organic synthesis such as perfume. [ APPLICATION VI ] the compound is used as a cosolvent for serum bilirubin test, a food additive (antiseptic), a bactericide in the pharmaceutical industry, a mordant in the dye industry, a plasticizer in the plastic industry, and also used as an intermediate for organic synthesis such as perfume.

Xanthan gum: xanthan gum is also called xanthan gum, Xanthomonas polysaccharide, it is a kind of monospore polysaccharide produced by fermentation of pseudoxanthomonas, take carbohydrate as the main raw material by the yellow unicellular bacteria of wild rape of black rot of cabbage, through the biological engineering technique of aerobic fermentation, cut off 1, 6-glycosidic bond, open the branched chain, after according to 1, 4-bonding to become a kind of acidic extracellular heteropolysaccharide that the straight chain makes up. Xanthomonas campestris, black rot, was isolated in 1952 from the research institute of northern Pirilage, Illinois, Ministry of agriculture and obtained by converting cabbage extracts into water-soluble acidic extracellular heteropolysaccharides. Xanthan gum is an extracellular microbial multi-pool produced by fermentation of saccharides with xanthomonas sp. Due to the special structure and colloid characteristics of macromolecules, the modified starch has multiple functions, can be used as an emulsifier, a stabilizer, a gel thickener, a sizing agent, a film forming agent and the like, and is widely applied to various fields of national economy. Are used in industry as stabilizers, thickeners and processing aids for a variety of purposes including making canned and bottled food, bakery food, dairy products, frozen food, salad dressings, beverages, brewing, candies, pastry recipes and the like. When the food is prepared, the food is easy to flow, pour and pour, and reduce energy consumption.

N-butanol: n-butanol, a colorless, transparent, alcoholic liquid, is a solvent for various paints and a raw material for making plasticizer dibutyl phthalate, is also used for making butyl acrylate, butyl acetate, butyl glycol ether, and is used as an organic synthesis intermediate and an extractant for biochemical drugs, and is also used for making surfactants. The plasticizer is mainly used for manufacturing n-butyl ester plasticizers of phthalic acid, aliphatic dibasic acid and phosphoric acid, is widely used in various plastic and rubber products, and is also a raw material for preparing butyraldehyde, butyric acid, butylamine, butyl lactate and the like in organic synthesis. Also can be used as an extracting agent of grease, medicines (such as antibiotics, hormones and vitamins) and spices, an additive of alkyd resin paint, and the like, and can also be used as a solvent and a dewaxing agent of organic dye and printing ink. The method is used for producing butyl acetate, dibutyl phthalate and phosphoric acid plasticizers, and is also used for producing melamine resin, acrylic acid, epoxy varnish and the like; as chromatographic reagents, also for organic synthesis, etc.; it can be used for preparing edible essence such as banana, butter, whisky, cheese, etc.

Calcium chloride: calcium chloride, a salt of elemental chlorine and elemental calcium, has the chemical formula CaCl 2. Slightly bitter and tasteless. It is typically an ionic halide that is white, hard, in small pieces or particles at room temperature. Common applications include brines used in refrigeration equipment, road ice melting agents, and desiccants. Anhydrous calcium chloride must be stored hermetically in a container because it is susceptible to deliquescence by absorbing moisture in air [5 ]. The calcium chloride and the hydrate and solution thereof have important application values in the aspects of food manufacture, building materials, medicine, biology and the like. The calcium chloride has outstanding adsorption capacity and low desorption temperature for ammonia, and has great application prospect in the aspect of adsorption and separation of synthetic ammonia. However, calcium chloride is difficult to form a stable porous material, has a small contact area with gaseous ammonia, and is likely to expand and agglomerate during adsorption and desorption, making it difficult to put it into practical use in this respect. The calcium chloride is loaded on the carrier with high specific surface area, so that the contact area of the calcium chloride and the gas ammonia can be greatly increased. Related researches show that the composite adsorbent prepared by loading calcium chloride on the molecular sieve has better adsorption performance and stability than a single adsorbent.

Ethanol: ethanol (ethanol), an organic compound, of formula C2H6O, of formula CH3CH2OH or C2H5OH, commonly known as alcohol, is the most common monohydric alcohol. The ethanol is a flammable and volatile colorless transparent liquid at normal temperature and normal pressure, has low toxicity, and can not be directly drunk as a pure liquid; has special fragrance and slight irritation; slightly sweet and accompanied by pungent and spicy taste. Inflammable, its vapor can form explosive mixture with air, and it can be dissolved in water in any ratio. Is miscible with chloroform, diethyl ether, methanol, acetone and most other organic solvents, and has a relative density (d15.56) of 0.816. The ethanol has wide application range, and can be used for preparing acetic acid, beverages, essence, dye, fuel and the like. In medical treatment, ethanol with the volume fraction of 70-75% is also commonly used as a disinfectant and the like, and has wide application in national defense chemical industry, medical treatment and health, food industry, industrial and agricultural production. Ethanol and dimethyl ether (i.e., methyl ether) are functional isomers of each other. In 2017, 10 and 27, the list of carcinogens published by the international cancer research institution of the world health organization is preliminarily collated for reference, and ethanol in alcoholic beverages is in the list of carcinogens.

Ethylene glycol: ethylene glycol (ethylene glycol) is also known as "glycol" or "1, 2-ethylene glycol", abbreviated as EG. The simplest diol has the chemical formula (CH2OH) 2. Ethylene glycol is a colorless, odorless, sweet liquid that is toxic to animals and is lethal to humans at a dose of about 1.6 g/kg. Ethylene glycol is miscible with water and acetone, but has low solubility in ethers. Used as solvent, antifreezing agent and raw material for synthesizing terylene. Polyethylene glycol (PEG), a high polymer of ethylene glycol, is a phase transfer catalyst and is also used for cell fusion; the nitrate is an explosive. It is mainly used for preparing polyester terylene, polyester resin, moisture absorbent, plasticizer, surfactant, synthetic fiber, cosmetics and explosive, and also used as solvent for dye, printing ink, etc., antifreeze agent for preparing engine and gas dehydrating agent, and can be used for preparing wetting agent for resin, glass paper, fiber, leather and adhesive. Can produce synthetic resin PET, fiber grade PET is polyester fiber, and bottle grade PET is used for manufacturing mineral water bottles and the like. Alkyd resins, glyoxal and the like can also be produced and are also used as antifreeze agents. In addition to being used as antifreeze for automobiles, it is also used for the transport of industrial refrigeration, commonly referred to as coolant, and can also be used as a condensing agent as well as water. The ethylene glycol methyl ether series products are high-grade organic solvents with excellent performance, and are used as solvents and diluents for printing ink, industrial cleaning agents, coatings (nitrocellulose lacquer, varnish and enamel paint), copper-clad plates, printing and dyeing and the like; can be used as raw materials for producing chemical products such as pesticide intermediates, medicine intermediates and synthetic brake fluid; used as electrolyte of electrolytic capacitor, tanning chemical fiber dye, etc. It is used as textile assistant, synthetic liquid dye, and raw material of desulfurizing agent in chemical fertilizer and oil refining production.

Alkyl glycoside: the alkyl glycoside refers to an alkyl glycoside (APG) synthesized from glucose and fatty alcohol, and refers to a glycoside having a sugar unit of 2 or more in a complex glycoside compound, and is collectively referred to as alkyl polyglycoside (or alkyl polyglycoside). In general, the alkyl polyglycoside has a polymerization degree n of 1.1 to 3, and R is a C8 to C16 alkyl group. APG is white solid powder or light yellow oily liquid at normal temperature, has high solubility in water and is difficult to dissolve in common organic solvents.

Sodium dodecylbenzenesulfonate: sodium dodecyl benzene sulfonate, abbreviated as SDBS, is a sodium dodecyl benzene sulfonate, a white or yellowish powdery or flaky solid. Is difficult to volatilize and easy to dissolve in water, and is dissolved in water to form a semitransparent solution. Stable chemical properties to alkali, dilute acid and hard water, and low toxicity. Are commonly used anionic surfactants.

Hydrocarbon surfactant: surfactant (surfactant) is a substance added in a small amount to change the interface state of a solution system obviously. Has fixed hydrophilic and lipophilic groups and can be directionally arranged on the surface of the solution. The molecular structure of the surfactant has amphipathy: one end is a hydrophilic group, and the other end is a hydrophobic group; the hydrophilic group is often a polar group, such as carboxylic acid, sulfonic acid, sulfuric acid, amino or amino groups and salts thereof, hydroxyl, amide, ether linkages, and the like may also be used as the polar hydrophilic group; and the hydrophobic group is often a non-polar hydrocarbon chain, such as a hydrocarbon chain of 8 or more carbon atoms. The surfactant is divided into ionic surfactant (including cationic surfactant and anionic surfactant), nonionic surfactant, amphoteric surfactant, compound surfactant, other surfactants, etc.

Carboxypropyl methyl cellulose: hydroxypropyl methylcellulose (INN name: Hypromellose), also known as Hypromellose (abbreviated as HPMC), is a species of non-ionic cellulose mixed ether. It is a semi-synthetic, inactive, viscoelastic polymer, commonly used in ophthalmology as a lubricant, or in oral pharmaceuticals as an adjuvant or excipient, commonly found in a variety of different commercial products. As a food additive, hypromellose may play the following roles: emulsifier, thickener, suspending agent and animal gelatin substitute. Its code "food code" (E code) is E464. The product is used as thickener, dispersant, binder, excipient, oil-resistant coating, filler, emulsifier and stabilizer in textile industry. But also widely applied to the industries of synthetic resin, petrochemical industry, ceramics, papermaking, leather, medicine, food, cosmetics and the like.

The invention has the beneficial effects that: the water-based fire extinguishing agent can effectively control various types of fire, has low surface tension, strong foaming force, stable foam, good wettability, excellent compound performance, small irritation to human bodies and quick biodegradation; the excellent emulsifying property of the sodium dodecyl benzene sulfonate enables the fire extinguishing agent and the organic solution which is on fire to react with each other to form emulsion, the concentration of the flammable steam is diluted, the foam is generated after the emulsion is applied and heated, the generated foam is rich and compact, the generation is rapid, the oxygen-isolating and suffocation effect is obvious, the components are uniformly mixed, the stability is good, the precipitation cannot occur along with the change of the storage environment, the fire extinguishing effect is not influenced after the foam is stored for a long time, the proportion among all the components is optimized, the optimal synergistic effect is achieved, a water film can be formed on the surface of a combustion object, oxygen is isolated, cooling, heat resistance and flame retardance are realized, and the flame retardance and the resistance are extremely strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a flow chart of a method for preparing a novel polymer water-based fire extinguishing agent according to an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

According to an embodiment of the present invention, a novel polymer water-based fire extinguishing agent is provided.

Wherein the surfactant comprises the following raw material components: 2-6 parts of hydrocarbon surfactant and 6-8 parts of carboxymethyl cellulose.

The foaming agent comprises the following raw material components: 8-10 parts of alkyl glycoside.

The surfactant comprises the following raw material components: 6-10 parts of sodium dodecyl benzene sulfonate.

The composite antifreeze agent comprises the following raw material components: 2-4 parts of calcium chloride, 2-4 parts of ethanol and 4-6 parts of ethylene glycol.

In order to clearly understand the technical scheme of the invention, the technical scheme of the invention is described in detail through specific examples.

Example one

A novel high-molecular water-based extinguishing agent is prepared from the following raw materials in parts by mass:

2g of ammonium polyphosphate, 6g of sodium carbonate, 6g of sodium silicate, 10g of polyacrylamide, 2g of polyethylene glycol, 6g of dioctyl sodium sulfosuccinate, 12g of dodecyl betaine, 6g of sodium chloride, 5g of sodium benzoate, 7g of xanthan gum, 15g of n-butanol, 8g of a composite antifreeze agent, 8g of a foaming agent, 6g of a surfactant, 8g of a surfactant and 80g of water.

Wherein the surfactant comprises the following raw material components: 2g of hydrocarbon surfactant and 6g of carboxypropylmethyl cellulose.

The foaming agent comprises the following raw material components: and 8g of alkyl glycoside.

The surfactant comprises the following raw material components: 6g of sodium dodecyl benzene sulfonate.

The composite antifreeze agent comprises the following raw material components: 2g of calcium chloride, 2g of ethanol and 4g of ethylene glycol.

adding 53g of water into a stirring kettle, and heating to the estimated temperature;

2g of weighed ammonium polyphosphate, 6g of sodium carbonate, 6g of sodium silicate, 10g of polyacrylamide, 2g of polyethylene glycol, 6g of dioctyl sodium sulfosuccinate, 12g of dodecyl betaine, 6g of sodium chloride, 5g of sodium benzoate, 7g of xanthan gum and 15g of n-butyl alcohol are stirred and mixed to form a mixture I;

putting the first mixture into a stirring kettle which is heated to a certain temperature and is filled with 53g of water, and stirring to form a first mixed solution;

mixing 27g of water with the composite antifreeze agent, putting the mixture into the first mixed solution, and continuously stirring to form a second mixed solution;

2g of hydrocarbon surfactant, 6g of carboxymethyl cellulose, 8g of alkyl glycoside and 6g of sodium dodecyl benzene sulfonate are mixed to form a second mixture;

Example two

3g of ammonium polyphosphate, 7g of sodium carbonate, 7g of sodium silicate, 11g of polyacrylamide, 3g of polyethylene glycol, 7g of dioctyl sodium sulfosuccinate, 14g of dodecyl betaine, 7g of sodium chloride, 7g of sodium benzoate, 10g of xanthan gum, 20g of n-butanol, 11g of a composite antifreeze agent, 9g of a foaming agent, 8g of a surfactant, 11g of a surfactant and 90g of water.

Wherein the surfactant comprises the following raw material components: 4g of hydrocarbon surfactant and 7g of carboxypropyl methyl cellulose.

The foaming agent comprises the following raw material components: and 9g of alkyl glycoside.

The surfactant comprises the following raw material components: 8g of sodium dodecyl benzene sulfonate.

The composite antifreeze agent comprises the following raw material components: 3g of calcium chloride, 3g of ethanol and 5g of ethylene glycol.

adding 60g of water into a stirring kettle, and heating to the estimated temperature;

3g of weighed ammonium polyphosphate, 7g of sodium carbonate, 7g of sodium silicate, 11g of polyacrylamide, 3g of polyethylene glycol, 7g of dioctyl sodium sulfosuccinate, 14g of dodecyl betaine, 7g of sodium chloride, 7g of sodium benzoate, 10g of xanthan gum and 20g of n-butyl alcohol are stirred and mixed to form a mixture I;

putting the first mixture into a stirring kettle which is heated to a certain temperature and contains 60g of water, and stirring to form a first mixed solution;

mixing 30g of water with the composite antifreeze agent, putting the mixture into the first mixed solution, and continuously stirring to form a second mixed solution;

mixing 4g of hydrocarbon surfactant, 7g of carboxymethyl cellulose, 9g of alkyl glycoside and 8g of sodium dodecyl benzene sulfonate to form a mixture II;

EXAMPLE III

4g of ammonium polyphosphate, 8g of sodium carbonate, 8g of sodium silicate, 12g of polyacrylamide, 4g of polyethylene glycol, 8g of dioctyl sodium sulfosuccinate, 16g of dodecyl betaine, 8g of sodium chloride, 9g of sodium benzoate, 13g of xanthan gum, 25g of n-butanol, 14g of a composite antifreeze agent, 10g of a foaming agent, 10g of a surfactant, 14g of a surfactant and 100g of water.

Wherein the surfactant comprises the following raw material components: 6g of hydrocarbon surfactant and 8g of carboxypropylmethyl cellulose.

The foaming agent comprises the following raw material components: 10g of alkyl glycoside.

The surfactant comprises the following raw material components: 10g of sodium dodecyl benzene sulfonate.

The composite antifreeze agent comprises the following raw material components: 4g of calcium chloride, 4g of ethanol and 6g of ethylene glycol.

adding 65g of water into a stirring kettle, and heating to the estimated temperature;

4g of weighed ammonium polyphosphate, 8g of sodium carbonate, 8g of sodium silicate, 12g of polyacrylamide, 4g of polyethylene glycol, 9g of dioctyl sodium sulfosuccinate, 16g of dodecyl betaine, 8g of sodium chloride, 9g of sodium benzoate, 13g of xanthan gum and 25g of n-butyl alcohol are stirred and mixed to form a mixture I;

putting the first mixture into a stirring kettle which is heated to a certain temperature and contains 65g of water, and stirring to form a first mixed solution;

mixing 35g of water with the composite antifreeze agent, putting the mixture into the first mixed solution, and continuously stirring to form a second mixed solution;

mixing 6g of hydrocarbon surfactant, 8g of carboxymethyl cellulose, 10g of alkyl glycoside and 10g of sodium dodecyl benzene sulfonate to form a second mixture;

For the convenience of understanding the above technical solution of the present invention, the following detailed description is made on the flow of the above solution of the present invention with reference to the accompanying drawings, and specifically is as follows:

according to the embodiment of the invention, the preparation method of the novel high-molecular water-based fire extinguishing agent is also provided.

As shown in figure 1, in the actual production process, the preparation of the novel high-molecular water-based fire extinguishing agent comprises the following steps:

s101, weighing raw materials required by the novel high-molecular water-based fire extinguishing agent according to the parts by weight;

step S103, adding 2/3 of water into the stirring kettle, and heating to the budget temperature;

step S105, stirring and mixing the weighed ammonium polyphosphate, sodium carbonate, sodium silicate, polyacrylamide, polyethylene glycol, dioctyl sodium sulfosuccinate, dodecyl betaine, sodium chloride, sodium benzoate, xanthan gum and n-butyl alcohol to form a mixture I;

step S107, putting the first mixture into a stirring kettle which is heated to a certain temperature and is provided with 2/3 of water, and stirring to form a first mixed solution;

step S109, mixing 1/3 of water with the composite antifreeze agent, putting the mixture into the mixed solution I, and continuously stirring to form mixed solution II;

step S111, mixing a hydrocarbon surfactant, carboxypropyl methyl cellulose, alkyl glycoside and sodium dodecyl benzene sulfonate to form a second mixture;

and step S113, slowly adding the mixture II into the mixed solution II, heating and stirring to form a finished product.

In one embodiment, 2/3 of the above water is added to a stirred tank and the temperature is raised to 37 ℃.

In one embodiment, the first mixture is put into a stirring kettle with 2/3 of water and heated to a certain temperature, and stirring is carried out to form a first mixed solution, wherein the stirring speed is 60-90 revolutions per minute, and the stirring time is 50-70 minutes.

In one embodiment, the composite antifreeze agent is added into the first mixed solution and then stirred continuously, the stirring speed of the second mixed solution is 30-50 revolutions per minute, and the stirring time is 30-50 minutes.

In one embodiment, the mixture II is slowly added into the mixed solution II, the mixture II is heated and stirred to form a finished product, the speed of adding the mixture II is 1/10 of the speed of adding the mixture II every 30 minutes, the temperature is raised to 50 ℃ every 20 minutes, the stirring speed is 60-90 r/min, and the stirring time is 4.5 hours.

In conclusion, by means of the technical scheme, various types of fire disasters can be effectively controlled, and the water-based fire extinguishing agent is low in surface tension, strong in foaming force, stable in foam, good in wettability, excellent in compound performance, small in irritation to a human body and capable of being biodegraded rapidly; the excellent emulsifying property of the sodium dodecyl benzene sulfonate enables the fire extinguishing agent and the organic solution which is on fire to react with each other to form emulsion, the concentration of the flammable steam is diluted, the foam is generated after the emulsion is applied and heated, the generated foam is rich and compact, the generation is rapid, the oxygen-isolating and suffocation effect is obvious, the components are uniformly mixed, the stability is good, the precipitation cannot occur along with the change of the storage environment, the fire extinguishing effect is not influenced after the foam is stored for a long time, the proportion among all the components is optimized, the optimal synergistic effect is achieved, a water film can be formed on the surface of a combustion object, oxygen is isolated, cooling, heat resistance and flame retardance are realized, and the flame retardance and the resistance are extremely strong.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A novel high-molecular water-based extinguishing agent is characterized by being prepared from the following raw materials in parts by mass:

2. The novel polymer water-based fire extinguishing agent according to claim 1, wherein the surfactant comprises the following raw material components: 2-6 parts of hydrocarbon surfactant and 6-8 parts of carboxymethyl cellulose.

3. The novel polymer water-based fire extinguishing agent as claimed in claim 2, wherein the foaming agent comprises the following raw material components: 8-10 parts of alkyl glycoside.

4. The novel polymer water-based fire extinguishing agent according to claim 3, wherein the surfactant comprises the following raw material components: 6-10 parts of sodium dodecyl benzene sulfonate.

5. The novel high-molecular water-based fire extinguishing agent as claimed in claim 4, wherein the composite antifreeze agent comprises the following raw material components: 2-4 parts of calcium chloride, 2-4 parts of ethanol and 4-6 parts of ethylene glycol.

6. A method for producing a novel polymer water-based fire extinguishing agent, which is used for producing the novel polymer water-based fire extinguishing agent according to claim 5, comprising the steps of:

7. The method of claim 6, wherein 2/3 of the water is added to the stirring vessel and heated to 37 ℃.

8. The method of claim 6, wherein the first mixture is stirred in a stirred tank with 2/3 of water at a constant temperature for 50-70 minutes at a stirring speed of 60-90 rpm.

9. The method for preparing a novel polymer water-based fire extinguishing agent according to claim 6, wherein the compound antifreeze is added to the first mixed solution and then stirred continuously, the stirring speed of the second mixed solution is 30-50 rpm, and the stirring time is 30-50 minutes.

10. The method of claim 6, wherein the mixture II is slowly added to the mixture II and heated and stirred to form a final product, and the mixture II is added at a rate of 1/10 per 30 minutes of the mixture II, wherein the temperature is raised at a rate of 2 ℃ per 20 minutes, and finally raised to 50 °, the stirring rate is 60 to 90 rpm, and the stirring time is 4.5 hours.