906results about "Fire extinguisher" patented technology

A long-term fire retarding biochemical liquid composition including: a dispersing agent realized in the form of a major amount of water, for dispersing alkali metal ions dissolved in the water; a major amount of a first fire retarding agent realized in the form of a primary alkali metal salt of a nonpolymeric saturated carboxylic acid, for example, tripotassium citrate, for providing metal potassium ions dispersed in the water when the at least one alkali metal salt is dissolved in the water to form a mixed retardant solution; a minor amount of a second fire retarding agent realized in the form of a secondary alkali metal salt of a nonpolymeric saturated carboxylic acid, for example, potassium, sodium, calcium and / or magnesium benzoate, for providing benzoate ions dispersed in the water when the secondary alkali metal salt is dissolved in the mixed retardant solution, for functioning as a secondary fire retardant agent.

The invention discloses an aerogel fire extinguishing agent for fire fighting, a fire extinguishing device and a releasing method.The aerogel fire extinguishing agent for fire fighting is prepared from, by mass, 8-12 parts of silicon dioxide aerogel powder, 40-45 parts of perfluorohexanone, 1.5-2 parts of zinc molybdate, 0.8-1.2 parts of nano cerium oxide, 2-3 parts of hyperbranched polysiloxane and 0.2-0.3 part of 18-crown-6 ether. Solid-phase silicon dioxide aerogel powder is matched with liquid-phase perfluorohexanone, zinc molybdate, nano cerium oxide, hyperbranched polysiloxane, 18-crown-6 ether and the like are compounded to serve as auxiliaries, efficient fire extinguishing can be conducted on precise electrical elements, residues are few, loss of instruments and equipment is small, and the fire extinguishing agent is suitable for being applied to the electrical field.

The invention relates to the field of battery fire extinguishing agents, in particular to a hydrogel fire extinguishing agent for battery fire and a preparation method of the hydrogel fire extinguishing agent. The hydrogel fire extinguishing agent for the battery fire disasters has viscosity variability, the components of the fire extinguishing agent are screened and compounded, the thermal reversible gel and the thermal irreversible gel are added, and the slow carbon forming gel and the water-retaining agent glycerinum are further added; the hydrogel fire extinguishing agent is in a flowing state with high viscosity and high flowability at normal temperature, and the inactivator is quickly converted into a gel state with high adhesion and non-flowability when encountering high temperature, so that the use of the hydrogel fire extinguishing agent is facilitated; and the hydrogel fire extinguishing agent can be ensured to cover the battery in fire for a long time to prevent the battery from reburning.

The invention discloses forest steppe fire extinguishing barrier foam and a preparation method thereof.The foam is prepared from 5%-20% of a material A, 0.5%-0.8% of a material B, 1.8%-3% of a coagulant and the balance water through a foam generation system; the material A is prepared from 1 to 10 parts of organic aggregate and 100 to 200 parts of inorganic aggregate; the material B is composed of 2-7 parts of a composite surfactant and 1-6 parts of a cross-linking agent; the coagulant is carbon dioxide gas. The inorganic aggregate is condensed under the action of hydrogen ions generated by dissolution of carbon dioxide to form colloidal particles, the colloidal particles are polymerized and crosslinked with the organic aggregate to form a gel skeleton of a three-dimensional network structure, the foam is converted into gel foam, and a heat-insulating and anti-burning barrier layer is formed on the surface of a combustible. The fire extinguishing agent is high in fire extinguishing efficiency, good in heat insulation effect and environment-friendly, and has wide application prospects in forest and grassland fire disasters.

The invention belongs to the technical field of fire-extinguishing building materials, and discloses a microencapsulated efficient automatic fire-extinguishing patch and a preparation method thereof.The fire-extinguishing patch contains a fire-extinguishing microcapsule, the fire-extinguishing microcapsule is of a double-layer structure, the inner layer contains gelatin, kaolin, perfluorohexanone, sodium hexametaphosphate, resorcinol and glutaraldehyde, and the outer layer contains gelatin, kaolin, perfluorohexanone, sodium hexametaphosphate, resorcinol and glutaraldehyde; and the outer layer comprises a vinylidene fluoride-acrylic acid copolymer and glutaraldehyde. According to the invention, the flaky kaolin is used for enhancing the formaldehyde-free phenolic aldehyde inner layer and the vinylidene fluoride-acrylic acid copolymer outer layer to form a double-layer shell layer with high air tightness, so that the compactness and long-term stability of the shell layer of the microcapsule are greatly improved.

The invention discloses wide-temperature-range self-repairing gradient ceramic fire extinguishing foam, a preparation method and application of the foam in an electrochemical energy storage device, and belongs to the technical field of new energy battery safety. Aiming at the technical bottleneck of a traditional fire extinguishing material in coping with a thermal runaway fire disaster of an electrochemical energy storage device, the defects of an existing material in the aspects of extreme temperature adaptability, electrolyte compatibility and long-acting flame retardance are overcome through unique three-layer gradient structure design and material innovation; the technical bottlenecks of wide temperature range stability, an intelligent response mechanism and after-combustion blocking capacity are broken through, the ultra-wide temperature range structural stability from-50 DEG C to 1600 DEG C is achieved, millisecond-level response to different electrolytes is achieved, and a self-repairing barrier after fire extinguishment can be built. The innovation point is that the gradient ceramic structure design, the dynamic response mechanism and the self-repairing circulating system are adopted, so that the equal-depth fire reignition rate of the lithium battery can be obviously reduced, and the application prospect is wide.

The invention relates to the technical field of fire extinguishing microcapsules, in particular to a high-airtightness perfluorohexanone fire extinguishing microcapsule and a preparation method and application thereof.The perfluorohexanone fire extinguishing microcapsule comprises a composite shell layer and a fire extinguishing core, and the composite shell layer is made of ethylene-vinyl alcohol copolymer resin and silicon dioxide nanoparticles; the fire extinguishing core is a perfluorohexanone fire extinguishing agent and is applied to preparation of indoor fire extinguishing pastes, fireproof coatings and polyurethane adhesive materials. According to the perfluorohexanone fire extinguishing microcapsule disclosed by the invention, the diffusion of low-polarity perfluorohexanone is effectively prevented by utilizing the strong hydrogen-bond interaction between hydroxyl groups in the ethylene-vinyl alcohol copolymer resin, and especially under the condition of relatively high temperature, the perfluorohexanone fire extinguishing microcapsule has a good fire extinguishing effect. The problem that an existing perfluorohexanone fire extinguishing microcapsule is poor in long-term air tightness under the condition of high encapsulation efficiency is effectively solved, and meanwhile harmful substances such as formaldehyde cannot be generated.

The invention provides energy storage battery immersed cooling liquid based on fluorinated nanofluid and a preparation method, and belongs to the technical field of heat management of energy storage equipment, the energy storage battery immersed cooling liquid comprises 74-84% of perfluoropolyether base liquid, 10-15% of surface modified boron nitride nanosheets, 5-8% of microencapsulated perfluorohexanone and 1-3% of polydimethylsiloxane modified silicon dioxide. Microencapsulated perfluorohexanone is integrated into the cooling liquid to achieve the dual functions of heat dissipation and fire extinguishment, and synergistic effects are generated in the aspects of heat conduction, insulation, fire extinguishment and the like through combined use of the perfluoropolyether base liquid, the surface modified boron nitride nanosheets, the microencapsulated perfluorohexanone and polydimethylsiloxane modified silicon dioxide and specific modification performance of the perfluoropolyether base liquid, the surface modified boron nitride nanosheets, the microencapsulated perfluorohexanone and the polydimethylsiloxane modified silicon dioxide. And experimental data can prove that the comprehensive performance of the material has substantive features and remarkable progress in the aspects of heat conductivity coefficient improvement, fire extinguishing time and the like.

The invention relates to the technical field of lithium ion battery fire extinguishing agents, and discloses a compound lithium ion battery fire extinguishing agent and a preparation method thereof.The compound lithium ion battery fire extinguishing agent is prepared from, by mass, 30-35 parts of vermiculite, 5-7 parts of fire extinguishing filler, 6-8 parts of modified zeolite, 0.5-1 part of a stabilizer, 1.5-2 parts of a dispersing agent, 1-2 parts of a thickening agent, 1-3 parts of a foaming agent and 40-50 parts of water. The fire extinguishing filler can form a barrier layer on the surface of the battery to prevent oxygen and heat transfer and achieve the fire extinguishing purpose, and starch and polydopamine in the fire extinguishing filler can form compact carbon layers, so that wrapped combustible molecules are distributed among the carbon layers, oxygen is further isolated, and the fire extinguishing efficiency is improved; the modified zeolite can complete fire extinguishing through a physical and chemical synergistic effect, and can form silicon dioxide to be distributed on the surface of the zeolite in the fire extinguishing process, so that the situation that the zeolite is subjected to thermal shock and thermal stress to cause collapse of a zeolite framework and influence the fire extinguishing performance is avoided.

The invention provides a perfluoroethanone microcapsule and a preparation method thereof, and belongs to the technical field of fire extinguishing materials, the perfluoroethanone microcapsule comprises a core and a shell layer; the core comprises perfluorohexanone and fumed silica; the shell layer comprises isophorone diisocyanate, diethylenetriamine and a chlorine-containing monomer, and the isophorone diisocyanate, the diethylenetriamine and the chlorine-containing monomer are subjected to an interfacial polymerization reaction to form a polyurea-polyurethane hybrid network; the mass ratio of the shell to the core of the microcapsule is 1: (5-20); the anhydrous microcapsule core is constructed through an oil-in-oil type anhydrous interfacial polymerization system, so that the hydrolysis side reaction is fundamentally avoided, the microcapsule has higher stable encapsulation efficiency, and the reliability and long-term effectiveness of the product in the storage and use processes are ensured.

The invention discloses a fire extinguishing microcapsule and a preparation method thereof, and belongs to the technical field of fire extinguishing. The fire extinguishing microcapsule comprises a capsule core and a capsule shell, wherein the capsule core comprises a water-based fire extinguishing agent and a fluorine-based fire extinguishing agent which are mutually insoluble; the capsule shell is coated outside the capsule core; wherein the mass ratio of the water-based fire extinguishing agent to the fluorine-based fire extinguishing agent is K1, and K1 is larger than or equal to 0.5 and smaller than or equal to 2. The fluorine-based fire extinguishing agent is preferentially gasified to break through the capsule shell to be released due to the characteristics of low boiling point and high vapor pressure so as to quickly block the chain reaction of combustion, the water-based fire extinguishing agent is secondarily released after being heated and expanded, continuous cooling is realized through vaporization heat absorption, self-driven staged release is realized by utilizing the physical property difference of the fluorine-based fire extinguishing agent and the water-based fire extinguishing agent, and the overall fire extinguishing efficiency of the fire extinguishing microcapsule is improved.

The invention provides a temperature-sensitive hydrogel additive, a preparation method thereof and a hydrogel fire extinguishing agent. The temperature-sensitive hydrogel fire extinguishing additive comprises the following raw materials: a temperature-sensitive substance, a thickening agent, a cross-linking monomer, an initiator and a cross-linking agent in a mass ratio of (0.3-1.7): (0.2-0.9): (2-10): (0.1-0.3): (0.01-0.05), the temperature-sensitive substance is methyl cellulose and / or carboxymethyl cellulose, the thickening agent is carboxymethyl chitosan and / or chitosan, and the cross-linking monomer is acrylic acid. The temperature-sensitive type hydrogel fire extinguishing agent additive for the lithium battery fire disasters solves the problems that an existing fire extinguishing agent is weak in cooling capacity, low in fire extinguishing efficiency, poor in adhesiveness, high in reburning rate, not environmentally friendly in material and the like when coping with the lithium battery fire disasters, and can rapidly release water to absorb heat and cool under the high-temperature condition; meanwhile, a compact closed film layer is formed on the surface of the battery to isolate oxygen from being in contact with electrolyte, so that reburning is effectively prevented.

The invention discloses a special gradient flame-retardant explosion suppressant for a high-energy-density ternary lithium battery, and relates to the technical field of safety protection of new energy batteries, the gradient flame-retardant explosion suppressant comprises the following components by mass: 30% of trimethyl phosphate, 16% of dimethyl methylphosphonate, 13% of triphenyl phosphate, 32% of a solvent, and 9% of a composite stabilizer; the compound stabilizer is prepared from 2, 6-di-tert-butyl-4-methylphenol, diisooctyl adipate and dibutyl sebacate according to the mass ratio of 2 to 1 to 1. The invention also provides a preparation method of the gradient flame-retardant explosion suppressant. Through formula optimization, especially adjustment of the composite stabilizer and reinforcement of a raw material pretreatment process, the explosion suppressant can be stably stored and operated within the range of-40 DEG C to 50 DEG C, the application limitation in extremely cold and high-temperature areas is solved, and the explosion suppressant is suitable for most of extreme temperature environments in the world.

The invention discloses a fire extinguishing microcapsule and a preparation method thereof, and belongs to the technical field of fire extinguishing. The fire extinguishing microcapsule comprises a capsule core and a capsule shell, and the raw material for preparing the capsule core comprises a water-based fire extinguishing agent; the capsule shell comprises an interfacial polymerization layer and a UV curing layer which are sequentially arranged from inside to outside, and the water-based fire extinguishing agent is wrapped in the interfacial polymerization layer. On one hand, the interfacial polymerization layer is a film formed through interfacial polymerization reaction, namely, the interfacial polymerization layer is formed by utilizing the hydrophilicity of the water-based fire extinguishing agent and the lipophilicity of the capsule shell, so that the sealing performance and the flexibility are improved; and on the other hand, the UV curing layer is formed by curing the raw materials for preparing the capsule shell through cross-linking under ultraviolet irradiation, so that the impact resistance and the deformation resistance of the capsule shell can be enhanced, and the mechanical strength and the high temperature resistance of the capsule shell are improved. In addition, the UV curing layer on the outer side and the interfacial polymerization layer on the inner side are sequentially formed in stages, the mechanical strength of the capsule shell is improved, and meanwhile the possibility of permeation loss of the water-based fire extinguishing agent is reduced.

The invention provides a hydrogel fire extinguishing additive, a preparation method thereof and a fire extinguishing agent. The hydrogel fire extinguishing additive comprises the following raw materials in parts by mass: 1-3 parts of a gelatinizing agent, 1-4 parts of a thickening agent, 1-3 parts of a stabilizer, 2-5 parts of a cross-linking agent, 1-3 parts of a surfactant, 2-6 parts of a phosphorus flame retardant and 3-5 parts of an antifreeze agent. The gelatinizing agent is selected from one or more of methyl cellulose, hydroxypropyl methyl cellulose and hydroxyethyl cellulose; the thickening agent is selected from one or more of sodium carboxymethyl cellulose, konjac glucomannan, sodium alginate, sodium polyacrylate and xanthan gum; the cross-linking agent is selected from one or more of calcium chloride, magnesium sulfate, calcium sulfate, magnesium chloride, potassium chloride and sodium nitrate. The temperature and pH double-response hydrogel fire extinguishing agent provided by the invention has the characteristics of quick response capability, high-temperature stability, good environmental adaptability, safety and environmental protection, and can be well used for efficient extinguishing and continuous cooling control of a lithium ion battery fire.

The application discloses a high-efficiency environment-friendly foam extinguishing agent for a converter station or a transformer substation and a preparation method thereof. A structural formula of a quaternary ammonium salt modified tetrasiloxane surfactant used in the extinguishing agent is shown in the specification. The surface tension of the quaternary ammonium salt modified tetrasiloxane surfactant is less than or equal to 20.8 mN / m. The quaternary ammonium salt modified tetrasiloxane surfactant can be specifically applied to development of the high-efficiency environment-friendly foam extinguishing agent for the converter station or the transformer substation. The high-efficiency environment-friendly foam extinguishing agent has excellent foaming performance, stability, extinguishing performance and film forming performance.

The invention discloses an aqueous film-forming foam extinguishing agent based on a short fluorocarbon chain, and relates to the technical field of extinguishing agents. The invention discloses an aqueous film-forming foam extinguishing agent based on a short fluorocarbon chain. The cleaning agent is prepared from the following raw materials in parts by weight: 8 to 12 parts of modified short fluorocarbon chain surfactant, 5 to 8 parts of dodecyl dimethyl betaine, 50 to 60 parts of deionized water, 2 to 4 parts of modified guar gum, 4 to 6 parts of ethylene glycol, 1 to 2 parts of benzotriazole, 0.5 to 1 part of sodium bicarbonate, 0.3 to 0.5 part of polydimethylsiloxane, 3 to 5 parts of decabromodiphenyl ethane and 1 to 2 parts of sodium carboxymethyl cellulose. 0.5 to 1 part of disodium ethylene diamine tetraacetate, 0.2 to 0.4 part of isothiazolinone and 0.5 to 1 part of nano silicon dioxide. According to the aqueous film-forming foam extinguishing agent based on the short fluorocarbon chain, the modified short fluorocarbon chain surfactant and the nano silicon dioxide cooperate, so that a film is formed quickly and compactly, and the extinguishing efficiency is high; the modified guar gum improves the foam stability, and the foam holding time is long; the raw material ratio is scientific, and both equipment protection and fire control are considered; the preparation process is rigorous, the product quality is stable, and various fire extinguishing scenes are adapted.

The invention belongs to the field of mixers, and particularly relates to a static mixer, a preparation method, a water-based fire extinguishing agent continuous production device and a production process. The static mixer comprises a plurality of continuous mixing elements; each mixing element comprises three triangular blades, namely a first triangular blade, a second triangular blade and a third triangular blade, and the second triangular blade and the third triangular blade are respectively connected with two angle edges of the first triangular blade; and the second triangular blade and the third triangular blade are arranged in opposite directions. According to the static mixer designed by the technical scheme of the invention, rapid mixing among fluids is realized, continuous operation in whole-flow pipeline reaction is realized, the problems of long stirring time and non-uniform mixing in current intermittent operation are solved, the working intensity of operators can be reduced, and the production efficiency is improved.

The invention discloses a preparation method of a double-initiation composite double-shell fire-extinguishing microcapsule, which comprises the following steps: firstly, preparing a fire-extinguishing microsphere with a core-shell structure, the capsule core emulsion comprising a fire-extinguishing core material and a surfactant; the inner shell layer solution comprises a temperature-sensitive material, a flame retardant, a cross-linking agent and a dispersing agent, and the LCST of the temperature-sensitive material is 55-65 DEG C. Then, the double-shell fire extinguishing microcapsule is prepared, and an outer shell solution comprises a photosensitive material, a flame retardant, a photoinitiator and a cross-linking agent; according to the invention, the construction of the double-layer shell layer is realized through two-step coating, and the prepared fire extinguishing microcapsule has a photo-thermal dual-initiation function and can be used for precise prevention and control of complex scenes such as electrical fire, forest fire and industrial plant fire.

The present invention relates to a fire-extinguishing composition and a battery pack comprising same. The fire-extinguishing composition comprises an inorganic compound and a polybasic acid compound in a predetermined content ratio and has the viscosity at room temperature controlled to be within a predetermined range and thus, when a thermal event occurs in the battery pack, enables a fire-extinguishing film to be uniformly formed at the spot where the event has occurred, thereby having high cooling and smothering effects for fire-extinguishing. In addition, the battery pack comprising same enables rapidly detecting a spot where a thermal event has occurred and directly and intensively spraying the fire-extinguishing composition on said spot and thus has the advantages of not only enabling the easy prevention of the spreading of the thermal event but also enabling the reduction of the time required to resolve the event.

The invention discloses a micro-fluidic technology-based double-shell microcapsule fire extinguishing agent and a preparation method thereof, and belongs to the technical field of fire extinguishing agents. A low-boiling-point liquid fire extinguishing agent serves as a capsule core, a polyurethane material prepared through the microfluidic technology serves as a first layer shell, flame-retardant materials such as melamine formaldehyde resin serve as a second layer shell, the capsule core is coated with the first layer shell, the first layer shell is coated with the second layer shell, and the double-shell microcapsule fire extinguishing agent based on the microfluidic technology is obtained. Microencapsulation of the low-boiling-point liquid fire extinguishing agent can be well achieved through the micro-fluidic technology, the obtained single-shell-layer microcapsule fire extinguishing agent is complete in structure, compact in shell layer, uniform in particle size and good in dispersity, the good flame retardant effect can be achieved through introduction of the second-layer shell resin type flame retardant material, and the heat stability of the microcapsule fire extinguishing agent is improved.

The invention discloses a preparation method of an environment-friendly lithium battery fire extinguishing agent based on nanofiber gel, and relates to the technical field of fire extinguishing. When the environment-friendly lithium battery fire extinguishing agent is prepared, nano sodium carboxymethyl cellulose reacts with N-isopropylacrylamide and N, N-methylene bisacrylamide to prepare semi-interpenetrating network hydrogel; the semi-interpenetrating network hydrogel and calcium lactate are cross-linked, and nano sodium carboxymethyl cellulose hydrogel is prepared; and mixing and stirring the nano sodium carboxymethyl cellulose hydrogel, the modified silicon carbide and a flame retardant to prepare the environment-friendly lithium battery fire extinguishing agent. The prepared environment-friendly lithium battery fire extinguishing agent has good fire extinguishing performance.

The invention relates to the technical field of fire-fighting materials, in particular to a fire-retardant thermosensitive self-crosslinking hydrogel fire extinguishing agent and a preparation method thereof. In order to solve the technical problems that an existing hydrogel fire extinguishing agent is limited in fire retardance effect, and especially for a high-temperature fire source, the existing hydrogel fire extinguishing agent is difficult to achieve a good fire retardance effect, the invention discloses a fire retardance type thermosensitive self-crosslinking hydrogel fire extinguishing agent which comprises the following components in percentage by mass: 0.05-1% of aryl sulfonylated carboxymethyl cellulose, 0.05-1% of a cross-linking agent, 0.05-1% of a cross-linking agent and the balance of water. 0.1%-2% of a first thickening agent; 0.1%-2% of a second thickening agent; 0.3 to 3 percent of a surfactant; 0.5-5% of a first flame retardant; 0.5 to 5% of a second flame retardant; and the other component is a solvent. The fire-retardant thermosensitive self-crosslinking hydrogel fire extinguishing agent can be used for rapid extinguishing and after-combustion inhibition of a high-temperature (less than or equal to 700 DEG C) fire source. And a good fire retardant effect is achieved.

The invention belongs to the technical field of coal mine fire prevention and extinguishing, and particularly relates to a composite synergist for improving the grouting performance of fly ash and a preparation method and application of the composite synergist. The composite synergist for improving the grouting performance of the fly ash comprises the following raw materials in parts by weight: 40-60 parts of a dispersing agent, 15-25 parts of a hydrophilic modifier, 15-25 parts of a thickening agent and 5-15 parts of a water-retaining agent. The hydrophilic modifier contained in the composite synergist can firstly improve the surface property of fly ash through chemical bonding, and an ideal platform is provided for efficient adsorption of a dispersing agent; meanwhile, the electrostatic stabilization mechanism provided by the dispersing agent and the steric hindrance mechanism provided by the thickening stabilizer form a dual stabilization system, so that the long-term stability of the slurry under dynamic transportation and static storage is ensured. In addition, the water-retaining agent and the thickening agent jointly construct a three-dimensional water-retaining network, so that water can be effectively locked, and slurry dehydration and particle sedimentation are delayed; the synergistic effect of all the components solves the technical problems that the fly ash slurry is poor in hydrophilicity, easy to settle, easy to block pipes, fast in dehydration and the like.

The invention discloses a microcapsule fire blanket, and relates to the technical field of fire extinguishing devices. The carpet comprises a carpet body, and the surface of the carpet body is covered with fire extinguishing microcapsules and refrigerating microcapsules; the fire extinguishing microcapsule and the refrigeration microcapsule are both of a shell-core structure, the mass ratio of a shell to a core material of the refrigeration microcapsule is 1: (1-9), and the core material comprises but is not limited to one of an F500 aqueous solution, an inorganic salt aqueous solution, pure water or seawater. The fire extinguishing microcapsules are heated and broken to spray out a fire extinguishing agent, chemical fire extinguishing is achieved, meanwhile, the refrigeration microcapsules are heated and broken to spray out a core material F500 aqueous solution, an inorganic salt aqueous solution, pure water or seawater to form water mist, physical cooling is achieved, and the overall fire extinguishing effect is effectively improved through the combined action of the two. And the fire extinguishing blanket is matched to cover a fire source to realize physical isolation of oxygen, so that the overall fire extinguishing efficiency is effectively improved.

The invention discloses a water-based fire extinguishing agent based on inorganic silicon dioxide aerogel loaded metal oxide nanoparticles, a preparation method and application. The fire extinguishing agent is prepared from, by mass, 1%-5% of silicon dioxide aerogel loaded metal oxide nanoparticles, 1%-10% of a foaming agent, 0.1%-2% of a stabilizer, 1%-10% of a flame retardant, 0.5%-5% of an anti-freezing agent, 0.1%-1% of a preservative and the balance water. The silicon dioxide aerogel loaded metal oxide nano-particles are prepared by the following steps: preparing a silicon dioxide aerogel skeleton, preparing metal oxide nano-particles, and modifying, loading and drying silane. The preparation method comprises the following steps: firstly preparing a dispersion liquid A containing the composite particles and a solution B containing the functional additive, and then carrying out mixing and ultrasonic treatment to obtain the product. The fire extinguishing agent can rapidly extinguish 314Ah lithium iron phosphate battery fire, efficiently consumes HF / CO and other gases, and is stable in system, environmentally friendly and suitable for battery fire prevention and control.

The invention relates to the technical field of fire extinguishing agents, in particular to a multiphase gel general fire extinguishing agent and a using method thereof. The multiphase gel general fire extinguishing agent comprises a component X and a component Y. The component X and the component Y are both aqueous solutions and are stored separately, the component X comprises 1-10 wt% of water-soluble polymers, and the component Y comprises 0.1-5 wt% of a cross-linking agent. According to the fire extinguishing agent, the water-soluble polymer in the component X and the cross-linking agent in the component Y can react to form a three-dimensional polymer network, meanwhile, water in the solution is completely wrapped in the three-dimensional polymer network, a multi-phase hydrogel product is formed, the mass ratio of the water is very high (90-99%), and the mass ratio of the three-dimensional polymer network is very low (0.05-0.5%). The multiphase gel general fire extinguishing agent provided by the invention has the advantages of good stability, strong water-retaining property, strong burning resistance, strong adhesion, good adaptability, wide applicability, good environmental protection property, recoverable film and the like.

The invention discloses an attached fireproof fire extinguishing pad which comprises a first fire extinguishing layer, a second fire extinguishing layer, a heat insulation layer and an adhesive layer which are fixedly connected in sequence. The first fire extinguishing layer and the second fire extinguishing layer are both composed of adhesives and fire extinguishing microcapsules, and each fire extinguishing microcapsule comprises a capsule shell composed of macromolecule resin, low-melting-point paraffin and expanded graphite and a perfluorohexanone capsule core packaged in the capsule shell. The content of an adhesive in the first fire extinguishing layer is high, and the content of fire extinguishing microcapsules is low; and the second fire extinguishing layer is relatively low in adhesive content and relatively high in fire extinguishing micro-capsule content. When in use, the fireproof fire-extinguishing pad is attached to a protective surface through the adhesive layer, and the first fire-extinguishing layer faces a fire position. When a fire occurs, the surface adhesive is heated and melted, the fire extinguishing micro-capsules are released, the micro-capsules are heated and blasted to release perfluorohexanone, and first-time rapid fire extinguishing is achieved. And if the fire behavior is continuous, the second layer is started immediately after the first layer is used up, and a larger dosage of fire extinguishing agent is provided for supplementary fire extinguishing, so that the reliability and continuity of fire extinguishing are remarkably improved.

The invention discloses a preparation method of an active fire extinguishing microcapsule, and particularly relates to a fire extinguishing technology, the preparation method comprises the following steps: mixing a first monomer, a second monomer and a fluorinated acrylate monomer, adding an initiator, uniformly mixing, heating and polymerizing to obtain a shell material, dissolving the shell material in an organic solvent to obtain a solution, adding an emulsifier and perfluorohexanone at a low temperature, stirring to obtain an emulsion, and drying to obtain the active fire extinguishing microcapsule. Adding a surfactant aqueous solution into the emulsion, continuously stirring after low-temperature high-speed stirring to obtain a three-phase suspension, heating, standing, collecting and drying to obtain an active fire extinguishing microcapsule finished product. According to the preparation method of the active fire extinguishing microcapsule disclosed by the invention, the active fire extinguishing microcapsule has an efficient active fire extinguishing function, and when encountering high temperature, the microcapsule can be broken to quickly release an efficient fire extinguishing core material perfluorohexanone contained in the microcapsule, so that flame spreading is directly inhibited at the initial stage of a fire; the perfluorohexanone is used as an efficient fire extinguishing agent, the usage amount is small, and pollution to the environment is reduced.

The present invention relates to a flame retardant fire extinguishing tape containing a flame retardant and fire extinguishing fluid microcapsules, and a method for manufacturing same. More specifically, the present invention relates to: a flame retardant fire extinguishing tape in which a fire extinguishing pad layer in which an acrylate oligomer, fire extinguishing fluid microcapsules, and a flame retardant are mixed is formed on a flame retardant adhesive layer; and a method for manufacturing same. The present invention relates to: a flame retardant fire extinguishing tape containing a flame retardant and fire extinguishing fluid microcapsules, wherein the fire spreading prevention effect of the fire extinguishing fluid microcapsules is improved by preventing the fire extinguishing fluid microcapsules from being rapidly gasified; and a method for manufacturing same.