66results about How to "Improve foam stabilization performance" patented technology

The invention relates to high-performance foaming cement, which comprises cement slurry and foams, wherein the cement slurry is prepared from the following raw materials in parts by weight: 100 parts of cement, 10-30 parts of gypsum powder, 10-50 parts of active admixtures, 10-40 parts of mineral admixtures, 1-5 parts of re-dispersible gelatine powder, 0.5-1.5 parts of cellulose ether, 0.2-1.0 part of water reducing agent, 0.1-0.5 part of water repellent and 40-90 parts of water; and the foams are prepared from the following components in parts by weight: 1 part of foaming agent, 0.2-0.8 part of foam stabilizer and 30-50 parts of water. A preparation method of the high-performance foaming cement comprises the steps of: (1) preparing the cement slurry; (2) preparing the foams by using a foaming machine; and (3) mixing and uniformly stirring the cement slurry and the foams according to the weight ratio of 1:(0.1-1), and pouring and molding. The high-performance foaming cement disclosed by the invention has high closed porosity and small shrinkage value, and integrates the performances of heat insulation, sound insulation, water repellent, shock resistance, fire protection, durability, low carbon and environmental protection into a whole.

The invention relates to a clay foam stabilizing complex additive for foam flooding as well as a preparation method and an application of the clay foam stabilizing complex additive. The clay foam stabilizing complex additive comprises the following raw materials in parts by weight: 0.2-0.9 part of sodium dodecyl benzene sulfonate, 1-10 parts of clay particles and 100 parts of water, wherein the particle sizes of the clay particles range from 25mu m to 100mu m. The hydrophobic clay particles are added into the clay foam stabilizing complex additive for foam flooding, provided by the invention to ensure that the solid particles are attached on the surface of a liquid film and in a liquid film layer to form a rigid compact shell, so that the strength of the foam liquid film is enhanced, the liquid drainage of the liquid film is inhibited, the liquid film is prevented from thinning, and furthermore, the bubbling volume of the foam is increased, and the half-life period of the foam is prolonged.

The invention relates to ammonium stearate emulsion and a producing method thereof, belonging to the technical field of auxiliary chemicals. The ammonium stearate emulsion comprises the following components with the weight percentage: 15-35% of stearic acid, 6-14% of 20% ammonia water, 1-3% of lauryl sodium sulfate and the rest of water. The production technique is that a reaction vessel is sequentially added with the stearic acid, the lauryl sodium sulfate and the water according to the formulation amount, the temperature is regulated to be 10-25 DEG C; after being evenly stirred, the mixture in the reaction vessel is added with the ammonia water, and the mixing speed is adjusted; the prepared ammonium stearate liquid is absorbed into an emulsifying tank for emulsification, stands still for 1-2h, and then is filtered, so that the ammonium stearate emulsion is obtained. The invention is suitable for large scale continuous production, ensures the reaction to be very safe under normal temperature and pressure, and has the advantages of simple input equipment, saved cost, no pollution and emission in the whole production process, silvery white and lustrous finished products, excellent fluidness and stability, low product viscosity (being lower than or equal to 350cps), high purity, good dispersion effect and convenient use. The ammonium stearate emulsion can be fully dispersed in waterborne liquid, has about six-month shelf life and is hard to become thick after being placed for a long time.

The invention relates to a high-temperature-resistant and low-tension foam flooding agent for improving a recovery ratio of crude oil in a reservoir and a preparation method thereof. The high-temperature-resistant and low-tension foam flooding agent is prepared by continuously stirring salts of alkyl phenol polyoxyethylene ether, sodium alkyl sulfonate, sodium chloride and water at 20-60 DEG C until the salts of alkyl phenol polyoxyethylene ether, sodium alkyl sulfonate and sodium chloride are completely dissolved. The high-temperature-resistant and low-tension foam flooding agent disclosed by the invention has the characteristics of ultralow interfacial tension, strong foaming capability, good foam-stabilizing effect and high temperature resistance and good compatibility with formation water and the like and does not be decomposed at high temperatures of 250 DEG C. The ultralow interfacial tension between aqueous solution (of which the salinity is 0-10000mg / L) of the high-temperature-resistant and low-tension foam flooding agent with a concentration of 0.1-0.5wt% and crude oil can be less than 10<-2>mN / m. The high-temperature-resistant and low-tension foam flooding agent, disclosed by the invention, can be used in a high-temperature reservoir to improve the recovery ratio of crude oil.

The present invention provides a foam scrubbing agent used for water drainage and gas collection of a water-production gas well containing H2S gas. The foam scrubbing agent included the following raw materials: 10-30% of an anionic-nonionic surfactant, 20-40% of a zwitterionic surfactant, 5-15% of an anionic surfactant and balance of deionized water. The present invention also provides a preparation method of the foam scrubbing agent, and the preparation method is as follows: the anionic-nonionic surfactant and the zwitterionic surfactant are added into a stainless steel reaction kettle in one time, and the deionized water is added to obtain a liquid mixture, the liquid mixture is heated to 40-50 DE GC, and stirred, the anionic surfactant is slowly added into the liquid mixture, and stirred to obtain the foam scrubbing agent. The foam scrubbing agent can good foaming characteristic and foam stabilization characteristic in formation water dissolved with the H2S gas.

The invention relates to the technical field of fire extinguishing agents, in particular to a fire extinguishing agent composition, and a preparation method and application thereof. The fire extinguishing agent composition comprises an organic silicon surfactant, a hydrocarbon surfactant, an organic cosolvent, a foam additive and the like. The foam extinguishing agent has main advantages of not containing a fluorocarbon surfactant, and a polyether modified polysiloxane type organic silicon surfactant and / or a polyether trisiloxane organic silicon surfactant are / is used; on the basis of environmental protection, a compound of an anionic hydrocarbon surfactant, a nonionic hydrocarbon surfactant and an amphoteric hydrocarbon surfactant is adopted for compounding, so that better foam performance and fire extinguishing performance can be achieved; through joint adjustment and dosage matching of multiple components, low surface tension, good foaming performance and foam stabilizing performance and efficient fire extinguishing performance are achieved, and the defect that foaming performance and foam stabilizing performance of an organosilicon surfactant is relatively poor is overcome. .The fire extinguishing agent composition can achieve spreading boundary on an oil surface, can be degraded easily, is environmentally friendly, and is often applied to extinguishing oil fire.

The invention relates to a preparation method of a protein type cement foaming agent and concrete containing the foaming agent. The method includes: hydrolyzing chrome-containing leather shavings to obtain a leather shaving hydrolysate solution, and then subjecting the leather shaving hydrolysate solution to blistering compounding and foam-stabilizing compounding to obtain the protein type foaming agent, thus solving the high cost problem of protein type foaming agents; and applying the protein type foaming agent into cement to prepare foam concrete, drying the chrome-containing residue obtained by hydrolysis, and then adding the dried residue into the foam concrete. The invention provides a novel treatment approach for chrome-containing residue, and obtains a new formula for making foam concrete. The method provided by the invention utilizes leather shavings to prepare the foaming agent and concrete with high utility value, and also solves the pollution problem of leather shavings.

The invention discloses a disinfectant and its preparation method. The disinfectant comprises a compound glutaraldehyde solution and a foaming agent. Volume ratio of the compound glutaraldehyde solution to the foaming agent is 5:1. The compound glutaraldehyde solution comprises glutaraldehyde, benzalkonium chloride, double-chain quaternary ammonium salt A, double-chain quaternary ammonium salt B, a nonionic surfactant A and a nonionic surfactant B. The double-chain quaternary ammonium salt A and the double-chain quaternary ammonium salt B are different substances. The nonionic surfactant A and the nonionic surfactant B are different substances. By cooperatively using glutaraldehyde, two kinds of double-chain quaternary ammonium salts and two kinds of nonionic surfactants, the synergistic effect is achieved, effects are enhanced, and sterilization is comprehensive.

The invention relates to a foam concrete foaming agent and a preparation method thereof. The foaming agent is prepared from the following ingredients in parts by mass: 0.3 to 0.9 percent of anion active agents, 0.13 to 0.21 percent of methyl glucoside polyoxyethylene ether bi-olein, 0.01 to 0.04 percent of hydroxyethylcellulose and 0.02 to 0.05 percent of polypropylene crosslinking resin, wherein the anion active agents are one kind of materials from neopelex, sodium dodecyl sulfate or fatty acid polyoxyethylene ether sodium sulfate. According to the preparation method, the substances in the corresponding mass percentage are respectively taken, are mixed and are uniformly stirred to obtain the foam concrete foaming agent. The foam concrete foaming agent has the advantages that the raw materials can be easily obtained; the pollution is little; green and environment-friendly effects are achieved; the cost is low; the wide application can be realized; good economic benefits are realized; the parameters such as the foaming times, the settlement distance, the water bleeding quantity and the like of the foam concrete foaming agent are tested; relatively good effects are achieved.

A high-temperature-resistant low-tension foam oil-displacing agent comprises an anionic surfactant and a zwitterionic surfactant, wherein the mass concentration ratio of the anionic surfactant to the zwitterionic surfactant is (1-50):1. The invention further discloses an application of the high-temperature-resistant low-tension foam oil-displacing agent to tertiary oil recovery to increase the recovery efficiency of crude oil in a high-temperature oil reservoir with the formation temperature of 80-200 DEG C. The high-temperature-resistant low-tension foam oil-displacing agent provided by the invention has the characteristics of ultralow interfacial tension, high foaming capacity, good foam stabilizing effect, good high-temperature resistance and the like, cannot be decomposed at the high temperature of 300DEG C. Ultralow interfacial tension less than 10<-2>mN / m can be achieved between an aqueous solution of the high-temperature-resistant low-tension foam oil-displacing agent and crude oil, wherein the concentration of the aqueous solution of the high-temperature-resistant low-tension foam oil-displacing agent is 0.1-0.5wt%.

The invention discloses thermal insulation anti-cracking foam concrete. The thermal insulation anti-cracking foam concrete comprises the following raw materials: cement, glass beads, limestone flour, a composite foaming agent, metakaolin, basalt fiber, lignin fiber, alpha-methyl-2,4-pentanediol, vinyl acetate-ethylene copolymer, a water reducer, an early strength agent, a pumping aid and water, wherein the composite foaming agent contains the following raw materials: N-lauroyl-L-sodium glutamate, sodium dodecyl benzene sulfonate, fatty alcohol-polyoxyethylene ether, oleic acid, triethanolamine, lauryl diethanolamine, zeolite powder and water. The thermal insulation anti-cracking foam concrete has high strength, a good anti-cracking effect and excellent thermal insulation performance.

The invention discloses foaming agent for foam concrete, and preparation method and application of foaming agent. The foaming agent comprises components including, by weight ratio, from 35 to 45% of hydrogen peroxide, from 10 to 15% of liquid paraffin, from 2 to 3% of sodium stearate and the balance water, and the volume percentage concentration of the hydrogen peroxide ranges from 32% to 42%. The foaming agent is excellent in performance, high in strength and cheap in price, the foaming behavior of the foam concrete is improved, a foaming effect is further enhanced, and holes of a concrete product are uniform.

The invention discloses an environment friendly dry mortar admixture applicable to novel wall materials, and a preparation method thereof. The method comprises the steps: (1) lignosulphonate is added with water and mixed uniformly, the system pH value is adjusted to be 8.0 to 11.0, urea and formaldehyde are added, and the mixture reacts for 1 to 2 hours at the temperature of 80 to 100 DEG C; (2) the system pH value is adjusted to be 4.0 to 6.0, and the mixture reacts for 2 to 3 hours at the temperature of 80 to 100 DEG C; and (3) an oxidant is added, the mixture reacts for 1 to 2 hours at the temperature of 70 to 90 DEG C and is cooled to obtain the liquid product of the mortar admixture, and the powder product of the mortar admixture can be obtained after spray drying. The mortar admixture has simple preparation process and low production cost, is environment-friendly as the papermaking and pulping by-product, lignosulphonate, is taken as raw material, has high water reduction rate, appropriate retardation and air-entraining performance, and can cause the mortar to have good cohesiveness, anti-cracking and impermeability.

The invention relates to a foaming agent, in particular to a vegetable protein foaming agent and a preparing method thereof. The vegetable protein foaming agent is at least prepared from, by weight, 1-20 parts of vegetable protein, 0.1-1 part of stabilizer, 0.1-1 part of dispersing agent and 78-98.8 parts of water. The vegetable protein is one or more of saponin vegetable protein or tea saponin vegetable protein; the dispersing agent is an anionic surfactant; the stabilizer is one or more of acacia gum, cellulose and modified cellulose.

The invention discloses a light foamed soil for high speed railway station maintenance and change filling. The light foamed soil contains the following composition materials by weight: 240-280 parts of cement, 60-80 parts of an active mixed material, 120-140 parts of water, 2-6 parts of an expansive agent, 10-18 parts of a foam stabilizing agent, 6-12 parts of a foaming agent, 3-10 parts of a water repellent, and 4-8 parts of a micro-foam agent. The light foamed soil also includes ceramsite lightweight aggregate with an adding amount accounting for 10%-35% of the total volume. The obtained light foamed soil has the characteristics of compact filling, good foam stabilizing effect, high strength, difficult cracking and good flexibility, is lighter than general civil engineering materials, can avoid environment destruction caused by high fill and high cut and the like when applied to filling engineering construction, and under the circumstance of ensuring constant load, can greatly enhance the filling height, reduce the influence of filling on the foundation, and has very obvious load decreasing effect under the circumstance of insufficient ground bearing capacity.

The invention relates to the technical field of concrete and specifically discloses impermeable concrete. The impermeable concrete is prepared from the following raw materials in parts by weight: 400to 420 parts of Portland cement; 200 to 220 parts of medium-coarse sand, 320 to 340 parts of stones, 100 to 120 parts of fine sand, 100 to 120 parts of steel fibers, 80 to 120 parts of fly ash, 12 to20 parts of an organosilicon waterproofing agent, 2 to 3 parts of an air entraining agent, 1 to 2 parts of a water reducing agent, 80 to 100 parts of nano CaCO3 and 250 to 270 parts of water. The airentraining agent is obtained by carrying out an esterification reaction on hyperbranched polyamide-ester and rosin; the concrete has the advantages of good impermeability and good strength; the invention further provides a preparation method of the impermeable concrete.

The invention relates to a salt-resistant and acid-resistant drainage foaming agent composition for gas recovery, a preparation method and application thereof. It mainly solves the problem of excessive liquid accumulation in the development process of existing gas wells, which leads to the reduction of production or even the suspension of blowout of gas wells. Including the following components by mass fraction: (1) 1 part of imidazoline type amphoteric surfactant; (2) 0.2 to 20 parts of α-olefin sulfonate; (3) 0-10 parts of nanoparticles; wherein The imidazoline type amphoteric surfactant has molecular general formula shown in formula (I), described R 1 for C 8 ~C 30 fat base; R 2 for C 1 ~C 5 Any one of the alkylene or substituted alkylene; Y is the technical scheme of the anionic group that makes the molecules shown in formula (I) be electrically neutral, which solves this problem better, and can be applied to high salt content Drainage and gas recovery in sour gas fields.

The invention discloses a compound protein foaming agent, and belongs to the technical field of food manufacturing. Rice bran and brewer's grains serve as raw materials, crushing, reagent mixing, stirring and centrifuging, degreasing and other operations are conducted, mixed protein is made and acted on protein surface grafted glycosyl through enzymolysis and sugar liquor, the foam stability is improved, bacterial cellulose left in the mixed protein can form a hydrogen bond with the glycosyl, the contact area of gas and water is reduced, an interfacial film keeps good mechanical strength, andthe foam stability of the foaming agent is further improved. Accordingly, glycerin and absolute ethyl alcohol serve as a ball-milling medium to conduct ball milling on soybean protein, the action among tissue is improved, then, by cooperating with alkali liquor, the protein is degraded, the molecular weight is lowered, the number of active groups is further increased, and then the foam stability of the foaming agent can be effectively improved. The problem that an existing frequently-used foaming agent is poor in foamability and foam stability is solved.

The invention relates to the technical field of concrete admixtures, particularly to an air-entraining type monomer, an air-entraining type water reducing agent and a preparation method of the air-entraining type water reducing agent, wherein the air-entraining type monomer is prepared from unsaturated acyl chloride and hydroxyl alkyl quaternary ammonium salt through an esterification reaction. The water reducing agent comprises an air-entraining polymer, which comprises a polymer or copolymer derived from a monomer, and the monomer comprises the air-entraining type monomer. According to the invention, the air-entraining type monomer and the air-entraining type water reducing agent prepared from the air-entraining type monomer provided by the invention can improve the dispersion retentivity of concrete and the foam stabilizing performance of bubbles in the concrete, and the introduced long-chain alkyl quaternary ammonium salt structure has antibacterial and anticorrosive effects, and can prevent the water reducing agent from mildewing so as to prolongs the storage time, the curling of water reducing agent molecules in an alkaline environment is reduced, the retention time of molecular stretching conformation of the water reducing agent is prolonged, and a wide market application prospect is achieved.

The invention relates to the technical field of surfactants, in particular to a glucosamide-terminated polyether surfactant as well as a preparation method and application thereof. The preparation method of the glucosamide-terminated polyether surfactant comprises the following steps: (1) adding glucolactone and polyether amine M2070 into an organic solvent, and heating for reaction to obtain a crude product; and (2) adding the crude product into ethanol, cooling, recrystallizing, and carrying out rotary evaporation treatment to obtain the final product glucosamide-terminated polyether surfactant. The obtained surfactant not only has better surface performance than polyether amine, but also has the characteristics of small irritation to human, easiness in degradation and the like of a glycosyl surfactant, and in addition, the surfactant is relatively simple in synthesis process, relatively high in yield, suitable for industrial production and wide in application prospect.

The invention relates to the technical field of gas leak detection agents, in particular to an anti-freezing gas leakage detection aerosol and a preparation method thereof. The formula of the anti-freezing gas leakage detection aerosol comprises the following components in parts by weight: 1-8 parts of a foaming agent, 1-6 parts of a foam stabilizer, 0.1-2 parts of a metal corrosion inhibitor, 25-50 parts of an anti-freezing agent, 0.1-0.8 parts of a thickening agent, 1-10 parts of a propellant and 60-90 parts of deionized water. According to the anti-freezing type gas leakage detection aerosol, the anti-freezing effect is improved, meanwhile the defoaming effect brought by an anti-freezing agent is eliminated, the foaming and foam stabilizing performances of the gas leak detection agent can be improved under the condition that the anti-freezing performance is not affected, the foam stabilizing performance can reach 8 hours or above, the anti-freezing gas leakage detection aerosol canbe used at the low temperature of -35 DEG C, and it is guaranteed that the leakage condition of a pipeline is rapidly, accurately and effectively detected.

The invention discloses a micro-foam agent for oil field oil gas well cementation. The micro-foam agent is prepared from a micro-foam agent half-finished product and silicate clay mineral in the weight ratio of 1:25-35; the micro-foam agent half-finished product is prepared from the following components in parts by weight: 7-11 parts of rosin powder, 4-7 parts of silicate saponifier, 0.7-1.3 parts of high-temperature-resistant surfactant combination, 1.0-3.0 parts of well cementation reinforcing agent and 8-12 parts of water, wherein the silicate clay mineral is sepiolite clay or lithium-based bentonite; the silicate saponifier is sodium silicate or potassium silicate; the well cementation reinforcing agent is triisopropanolamine or triethanolamine; and the high-temperature-resistant surfactant combination consists of OP-10 and SP-80 in the weight ratio of 1:1 or APG (Alkyl Polyglucoside) and SP-80 in the weight ratio of 1:1. The invention also provides a preparation method of the micro-foam agent. Thus, a novel ultra-low density micro-foam well cementation cement slurry system with fine foam, high stability, simple preparation process and superior overall performance is established.

The invention provides an early-strength waterproof foaming agent for foam concrete. The foaming agent comprises the following raw materials in parts by weight: 100 parts of water; a foaming component, including 9 to 15 parts of potassium lauryl ether phosphate, 4 to 8 parts of lauramidopropyl hydroxysulfobetaine and 3 to 6 parts of coco fatty acid diethanolamide; a foam stabilizing component, including 1 to 2 parts of Arabic gum, 0.8 to 2 parts of pentasodium triphosphate and 0.5 to 1.2 parts of ammonium chloride; an early strength component, including 1.5 to 3 parts of sodium sulfate and 1 to 2.5 parts of sodium carbonate; and a waterproof component, including 1.2-2.5 parts of methyl sodium silicate. The early-strength waterproof foaming agent can improve foam stability and the stabilityof foam concrete slurry, increase the pouring height of disposable foam concrete, enhance construction efficiency and improve the early strength and the waterproofness of the foam concrete.

The invention belongs to the field of polymer foaming materials, and particularly relates to an ionic polyurethane hot melt adhesive foam product and a preparation method thereof. The ionic polyurethane hot melt adhesive foam product comprises a moisture cured polyurethane hot melt adhesive, an ionic polyurethane hot melt adhesive and water. The preparation method comprises the following steps: carrying out grafting reaction on an anionic surfactant containing active hydrogen and a polyurethane hot melt adhesive to prepare an ionic polymer containing an NCO active group, adding water at 35-95DEG C, and carrying out foaming reaction to prepare an ionic polyurethane foam product. Compared with the traditional polyurethane foam product, the cost is low. Due to grafting introduction of the anionic surfactant, after water is added, the hydrophilicity of a polymer system is improved, a certain self-emulsifying effect is achieved, the foam stability is improved, the foam combining probability is reduced, foam holes are more compact and uniform, and meanwhile the characteristics of low compression deformation, high resilience, excellent mechanical strength and the like are achieved.

The invention provides a foam scrubbing agent as well as a preparation method and application thereof. The foam scrubbing agent comprises a zwitterionic surfactant, a nonionic surfactant, an anionic surfactant, ammonium chloride, sodium nitrite and water. The foam scrubbing agent can be particularly applied to liquid drainage and gas production of a water outlet gas well.

The invention relates to ultralight foam concrete and a preparing method thereof. The ultralight foam concrete is prepared by adopting common Portland cement, quick-to-solid sulphate aluminium cement, sludge of concrete batching plant, polycarboxylate superplasticizer, re-dispersible latex powder, hydroxypropyl methyl cellulose ether, calcium stearate, sintered shale brick powder, polypropylene fiber, hydrogen peroxide, water and the like through stirring, mixing, foaming, pouring, molding, curing and the like. The ultralight foam concrete has the advantages of low cost, high use rate of waste, high foaming efficiency of hydrogen peroxide, and good physical and mechanical properties, and an effect of preparing the ultralight foam concrete by using building garbage and wastes is achieved. The ultralight foam concrete is used for roof thermal insulation, wall body cavity filling and building floor thermal insulation.

The invention provides a foaming composition as well as a preparation method and an application thereof. The foaming composition comprises a soapberry extract, hydrolyzed silk and silk collagen. The foaming composition disclosed by the embodiment of the invention at least has the following beneficial effects that the unique amino acid structure of the hydrolyzed silk enables hydrogen bonds in thehydrolyzed silk to be adsorbed on a foam interface, the foam spacing is shortened, and the water loss is slowed down, so that the foamability of the soapberry extract is enhanced, and a certain foam stabilizing effect is achieved. The small molecular structure of the silk collagen can form tight interface accumulation in a foam channel to weaken charge repulsion between foams, thereby achieving the effect of increasing foams. After the two components are compounded with the soapberry extract, an obvious synergistic effect is achieved on the foamability and the foam stability of the soapberry extract, and the foam amount is increased and lasts for a long time.

The invention relates to the field of oil exploitation, and discloses modified starch, a preparation method thereof, a microbubble drilling fluid and application. The preparation method comprises the following steps: (1) preparing starch and water into a gelatinized starch solution, preparing a first monomer, a second monomer, a third monomer and water into a monomer solution, and then mixing the gelatinized starch solution, the monomer solution and a hydrophilic emulsifier to prepare a water-phase solution; (2) mixing an oleophylic emulsifier with liquid paraffin, and emulsifying to obtain an oil phase solution; adding the aqueous phase solution into the oil phase solution to prepare a water-in-oil type inverse emulsion system; (3) in the presence of an initiator, carrying out graft copolymerization reaction on the water-in-oil type inverse emulsion system to obtain a reaction product system; and (4) carrying out demulsification, cleaning and subsequent treatment on the reaction product system to obtain the modified starch. The modified starch has excellent high-temperature foam stabilizing performance, can resist the temperature of 180 DEG C, and has better salt and calcium resistance.

The invention provides a composite foaming agent and a preparation method thereof, and relates-the technical field of foaming agents. The composite foaming agent comprises the following raw materials in parts by weight: 65-75 parts of triterpenoid saponin, 10-15 parts of lauryl sodium sulfate, 3-7 parts of a foam increasing component, 4-7 parts of a foam stabilizing component, 2-4 parts of a functional component and 8-11 parts of water. Triterpenoid saponin and lauryl sodium sulfate are used as foaming agent base materials, foam increasing components such as lauryl polyoxyethylene ether sodium sulfate, lauryl dimethyl amine oxide and decyl sodium sulfate and foam stabilizing components such as triethanolamine, sodium chloride and hydroxyethyl cellulose are added, and the foamability and foam stability of the foaming agent can be greatly improved; and meanwhile, tris(2, 3-dibromopropyl)isocyanurate is added into the foaming agent-serve as a flame-retardant functional component, and benzoic acid and isothiazolinone are added to serve as anti-corrosion functional components, so that the performance of the foaming agent is more perfect, and the foaming agent is worthy of being vigorously popularized.

The invention discloses a highly concentrated environment-friendly fluorine-free compressed air foam fire extinguishing agent. Its components and weight percentages are: foaming agent 10-25%, flow enhancer 5-18%, foam stabilizer 5-25%, antifreeze agent 8-15%, bactericide 0.3-1.2%, and the balance for water. The foam fire extinguishing agent of the present invention has the characteristics of high concentration, and the minimum mixing ratio can be as low as 0.5%. The freezing point can reach ‑35°C, and it can be used normally in a low temperature environment. The product is suitable for fresh water and sea water. The invention can quickly extinguish fires of non-water-soluble flammable liquids, has strong resurgence resistance, can also quickly extinguish solid material fires, and is applicable to a wide range of fire extinguishing objects. The product does not contain fluorosurfactants and ether components, each component can be rapidly biodegraded in the environment, and has no toxic effect on animals and plants in the environment, and has no pollution to the environment after use, and has no impact on human health.