CN112642089A - Perfluorohexanone fire extinguishing bomb and preparation method thereof - Google Patents
Perfluorohexanone fire extinguishing bomb and preparation method thereof Download PDFInfo
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- CN112642089A CN112642089A CN202011510646.6A CN202011510646A CN112642089A CN 112642089 A CN112642089 A CN 112642089A CN 202011510646 A CN202011510646 A CN 202011510646A CN 112642089 A CN112642089 A CN 112642089A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0007—Solid extinguishing substances
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/06—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components
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Abstract
The invention discloses a perfluorohexanone fire extinguishing bomb and a preparation method thereof, wherein a bomb core is 98.2-98.8%, a fire extinguishing bomb shell is 1.2-1.8%, the sum of the mass percentages of the components is 100%, the fire extinguishing bomb shell is obtained by drying fire extinguishing bomb shell precursor liquid, and the fire extinguishing bomb shell precursor liquid consists of the following components in percentage by mass: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water 1: 0.4-0.6: 0.2-0.3: 0.03 to 0.07: 0.4-0.6: 0.01-0.02: 0.01-0.02: 0.3-0.5, wherein the bullet core comprises the following components in percentage by mass: silica micropowder: water is mixed according to the mass ratio of 1: 1.1-1.7: 0.01 to 0.03. The fire extinguishing bomb prepared by the invention effectively converts normal-temperature liquid perfluorohexanone into solid load.
Description
Technical Field
The invention belongs to the technical field of application of fire extinguishing agents, relates to a perfluorohexanone fire extinguishing bomb and further relates to a preparation method of the fire extinguishing bomb.
Background
The miniature fire extinguishing equipment such as fire extinguishing bomb, fire extinguishing ball and the like thrown in two years shows wide popularization and application trends. But different fire extinguishing media have different disadvantages such as being not suitable for all places, infecting the respiratory tract of a human body, causing environmental pollution and the like. Perfluorohexanone has attracted attention in recent years as a clean chemical gas fire extinguishing agent as an alternative product because of its many advantages such as high efficiency, cleanliness, environmental protection, and the like. The perfluorohexanone fire extinguishing agent has a boiling point of about 48 ℃ under standard atmospheric pressure, a freezing point of-108 ℃, an insulation strength of more than or equal to 110kv, is liquid at normal temperature and normal pressure, can be applied locally or submerged for fire extinguishing, has a fire extinguishing concentration of only 4-6%, can extinguish A, B, C, E, F types of fire, can be safely applied to places with people, has no residue after fire extinguishing, has an ozone loss potential value of 0 and a greenhouse effect value of 1, and ensures the safety and environmental protection of the fire extinguishing medium during and after use.
Disclosure of Invention
The first purpose of the invention is to provide a perfluorohexanone fire extinguishing bomb, which solves the problem that the application range of the fire extinguishing bomb in the prior art is limited.
The second purpose of the invention is to provide a preparation method of the perfluorohexanone fire extinguishing bomb.
The first technical scheme adopted by the invention is that the perfluorohexanone fire extinguishing bomb consists of the following components in percentage by mass: 98.2-98.8% of a bullet core and 1.2-1.8% of a shell of the fire extinguishing bullet, wherein the sum of the mass percentages of the components is 100%, the shell of the fire extinguishing bullet is obtained by drying a shell precursor liquid of the fire extinguishing bullet, and the shell precursor liquid of the fire extinguishing bullet comprises the following components in percentage by mass: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water 1: 0.4-0.6: 0.2-0.3: 0.03 to 0.07: 0.4-0.6: 0.01-0.02: 0.01-0.02: 0.3-0.5, wherein the bullet core comprises the following components in percentage by mass: silica micropowder: water is mixed according to the mass ratio of 1: 1.1-1.7: 0.01 to 0.03.
The first technical solution adopted by the present invention is further characterized in that,
the size of the fire extinguishing bomb is 0.3-1.2 cm3。
The gelatin can be replaced by any one of carrageenan, hydroxypropyl methylcellulose, polyvinyl alcohol or acrylic resin IV.
The particle size of the glass beads is 10-250 μm.
The second technical scheme adopted by the invention is as follows: a preparation method of a perfluorohexanone fire extinguishing bomb comprises the following specific operation steps:
step 1, preparing the bullet core: mixing perfluorohexanone: silica micropowder: water is mixed according to the mass ratio of 1: 1.1-1.7: 0.01-0.03 weight percent and mixing to form a solid core bullet;
step 2, preparing a precursor liquid of the shell of the fire extinguishing bomb: mixing gelatin: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water is mixed according to the mass ratio of 1: 0.4-0.6: 0.2-0.3: 0.03 to 0.07: 0.4-0.6: 0.01-0.02: 0.01-0.02: weighing 0.3-0.5, dissolving sorbitol, PEG400, hydroxypropyl starch, talcum powder and glass beads in water until the solution is clear, adding gelatin, sealing, swelling in the dark for 10-24 h, heating at 40-70 ℃, stirring for dissolving, and adding glycerol while hot to obtain a shell precursor solution of the fire extinguishing bomb;
step 3, immersing the core material prepared in the step 1 in the fire extinguishing bomb shell precursor liquid prepared in the step 2 for 1-3 seconds, and taking out to obtain a fire extinguishing bomb precursor;
and 4, putting the precursor prepared in the step 3 in a hot air environment at 35-45 ℃ for hardening to prepare the perfluorohexanone fire extinguishing bomb.
The second technical solution adopted by the present invention is further characterized in that,
and (3) after the glycerol is added in the step (2), carrying out ultrasonic treatment for 20-40 min after the mixture has certain fluidity to obtain a glue solution, wherein the viscosity of the glue solution is 2700-3200 MPa & s.
The invention has the beneficial effects that: the invention provides a perfluorohexanone fire extinguishing bomb which effectively converts normal-temperature liquid perfluorohexanone into a solid load. When the fire extinguishing bomb is used, the fire source is thrown into the fire extinguishing bomb, and the perfluorohexanone is quickly released under the action of the disintegrating agent after the fire extinguishing bomb is heated, so that the temperature of a fire extinguishing area is quickly reduced, and the fire extinguishing area is not harmfully affected. The safety and the environment-friendly property of the perfluorohexanone ensure that the perfluorohexanone can effectively cope with various fires such as solid, liquid, gas and the like.
Drawings
FIG. 1 is a graph showing the comparison of extinguishing time of perfluorohexanone extinguishing bomb of the present invention and other extinguishing materials on the market.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a perfluorohexanone fire extinguishing bomb which comprises the following components in percentage by mass: 98.2-98.8% of core and 1.2-1.8% of shell of fire extinguishing bomb, the sum of the mass percentages of the above components is 100%, and the size of the fire extinguishing bomb is 0.3-1.2 cm3. The shell of the fire extinguishing bomb is obtained by drying a shell precursor liquid of the fire extinguishing bomb, wherein the shell precursor liquid of the fire extinguishing bomb comprises the following components in percentage by mass: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water 1: 0.4-0.6: 0.2-0.3: 0.03 to 0.07: 0.4-0.6: 0.01-0.02: 0.01-0.02: 0.3 to 0.5. The bullet core consists of the following components in percentage by mass: silica micropowder: water is mixed according to the mass ratio of 1: 1.1-1.7: 0.01 to 0.03.
The invention relates to a preparation method of a perfluorohexanone fire extinguishing bomb, which is specifically carried out according to the following steps:
step 1, preparing the bullet core: weighing the prescribed amount of the bullet core components, mixing the components in percentage by weight: silica micropowder: water is mixed according to the mass ratio of 1: 1.1-1.7: 0.01-0.03 mixing to form a solid core bullet.
Step 2, preparing a precursor liquid of the shell of the fire extinguishing bomb: mixing gelatin: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water is mixed according to the mass ratio of 1: 0.4-0.6: 0.2-0.3: 0.03 to 0.07: 0.4-0.6: 0.01-0.02: 0.01-0.02: weighing 0.3-0.5, adding water to dissolve sorbitol, PEG400, hydroxypropyl starch, talcum powder and glass beads until the solution is clarified, adding gelatin, sealing, putting the mixture in a dark place to swell for 10-24 hours, heating and stirring at 40-70 ℃ to dissolve, adding glycerol while the mixture is hot, carrying out ultrasonic treatment for 20-40 min to remove bubbles after the mixture has certain fluidity, wherein the viscosity of the glue solution is 2700-3200 MPa.s.
Step 3, immersing the bullet core prepared in the step 1 in the fire extinguishing bullet shell precursor liquid prepared in the step 2 for 1-3 seconds, and taking out to obtain a fire extinguishing bullet precursor;
and 4, soaking the precursor prepared in the step 3 in a hot air environment at 35-45 ℃ for hardening to prepare the perfluorohexanone fire extinguishing bomb.
The gelatin can be replaced by carrageenan, hydroxypropyl methylcellulose, polyvinyl alcohol or acrylic resin IV.
The invention is characterized in that the glass microspheres have the particle size of 10-250 microns, and the glass microspheres with the particle size of 10-250 microns have the characteristics of light weight, low heat conduction, high strength, electric insulation and thermal stability; the talcum powder has high melting point, so that the flame retardant property of the filled material can be improved, and the shrinkage rate of the filled material can be effectively reduced; according to the invention, the glass beads and the talcum powder are added into the shell of the fire extinguishing bomb as the disintegrating agent, so that the perfluorohexanone contained in the bomb core can be effectively ensured to be rapidly dispersed in a fire extinguishing area after being heated.
The invention provides a perfluorohexanone fire extinguishing bomb which effectively converts normal-temperature liquid perfluorohexanone into a solid load. When the fire extinguishing bomb is used, a fire source is thrown into the fire extinguishing bomb, and after the fire extinguishing bomb is heated, perfluorohexanone is quickly released under the disintegration action of the talcum powder and the glass beads, so that the temperature of a fire extinguishing area is quickly reduced, and the fire extinguishing area is not harmfully affected. The safety and environmental protection of the perfluorohexanone ensure that the perfluorohexanone can effectively deal with various fires such as solid, liquid, gas and the like.
And (3) testing the fire extinguishing time:
fire extinguishing time comparison is carried out by selecting commercially available fire extinguishing sand, high-pressure water gun, liquid perfluorohexanone and the fire extinguishing bomb prepared by the method, and the comparison result is shown in figure 1 and corresponds to 1m3The fire extinguishing time required by the invention under the same fire extinguishing condition in the initial solid fire is shorter than that required by the existing fire extinguishing mode in the market.
The present invention will be described in detail with reference to examples.
Example 1:
step 1, preparing the bullet core: mixing perfluorohexanone: silica micropowder: water is mixed according to the mass ratio of 1: 1.1: 0.01 are weighed and mixed to form a solid core shot.
Step 2, preparing a precursor liquid of the shell of the fire extinguishing bomb: according to the gelatin: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water 1: 0.4: 0.2: 0.03: 0.4: 0.01: 0.01: weighing sorbitol, PEG400, hydroxypropyl starch, talcum powder and glass beads according to the mass ratio of 0.3, adding water according to the formula amount to dissolve until the solution is clear, adding weighed gelatin to enable the gelatin to be in contact with the solution components, sealing, putting the mixture into a dark place, swelling for 10h, heating and stirring at 40 ℃ to dissolve, adding glycerol when the mixture is hot, carrying out ultrasonic treatment for 20min to remove bubbles after the mixture has certain fluidity, and enabling the viscosity of the glue solution to be 2700MPa s.
Step 3, immersing the core material prepared in the step 1 in the precursor liquid of the shell of the fire extinguishing bomb prepared in the step 2 for 1s, and taking out to obtain a precursor of the fire extinguishing bomb;
and 4, placing the precursor prepared in the step 3 in a hot air environment at 35 ℃ for hardening to prepare the perfluorohexanone fire extinguishing bomb, wherein the mass percentage of the core to the shell of the fire extinguishing bomb in the fire extinguishing bomb is 98.8%: 1.2 percent and the size of the fire extinguishing bomb is 0.3cm3。
Example 2
Step 1, preparing the bullet core: mixing perfluorohexanone: silica micropowder: water is mixed according to the mass ratio of 1: 1.7: 0.03 was weighed and mixed to form a solid core shot.
Step 2, preparing a precursor liquid of the shell of the fire extinguishing bomb: mixing gelatin: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water 1: 0.6: 0.3: 0.07: 0.6: 0.02: 0.02: weighing 0.5 by mass, dissolving sorbitol, PEG400, hydroxypropyl starch, talcum powder and glass beads in a prescribed amount of water until the solution is clear, adding weighed gelatin, enabling the gelatin to be in contact with the solution components, sealing, putting the mixture in a dark place, swelling for 24 hours, heating and stirring at 70 ℃ for dissolving, adding glycerol when the mixture is hot, carrying out ultrasonic treatment for 40min after the mixture has certain fluidity, and removing bubbles, wherein the viscosity of the glue solution is 3200MPa & s.
Step 3, immersing the core material prepared in the step 1 in the precursor liquid of the shell of the fire extinguishing bomb prepared in the step 2 for 3s, and taking out to obtain a precursor of the fire extinguishing bomb;
and 4, placing the precursor prepared in the step 3 in a hot air environment at 45 ℃ for hardening to prepare the perfluorohexanone fire extinguishing bomb, wherein the mass percentage of the core to the shell of the fire extinguishing bomb is 98.2%: 1.8 percent and the size of the fire extinguishing bomb is 1.2cm3。
Example 3:
step 1, preparing the bullet core: mixing perfluorohexanone: silica micropowder: water is mixed according to the mass ratio of 1: 1.5: 0.02 are weighed and mixed to form a solid core.
Step 2, preparing a precursor liquid of the shell of the fire extinguishing bomb: mixing gelatin: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water is mixed according to the mass ratio of 1: 0.5: 0.25: 0.04: 0.4: 0.015: 0.015: weighing sorbitol, PEG400, hydroxypropyl starch, talcum powder and glass beads, adding water according to the prescription amount, dissolving until the solution is clear, adding weighed gelatin, enabling the gelatin to be in contact with the solution components, sealing, putting the mixture in a dark place, swelling for 15h, heating at 50 ℃, stirring and dissolving, adding glycerol when the mixture is hot, carrying out ultrasonic treatment for 30min after the mixture has certain fluidity, and removing bubbles, wherein the viscosity of the glue solution is 2900MPa s.
Step 3, immersing the core material prepared in the step 1 in the precursor liquid of the shell of the fire extinguishing bomb prepared in the step 2 for 2s, and taking out to obtain a precursor of the fire extinguishing bomb;
and 4, placing the precursor prepared in the step 3 in a hot air environment at 40 ℃ for hardening to prepare the perfluorohexanone fire extinguishing bomb, wherein the mass percentage of the core to the shell of the fire extinguishing bomb is 98.5%: 1.5 percent and the size of the fire extinguishing bomb is 0.7cm3。
Example 4:
step 1, preparing the bullet core: mixing perfluorohexanone: silica micropowder: water is mixed according to the mass ratio of 1: 1.1: 0.01 are weighed and mixed to form a solid core shot.
Step 2, preparing a precursor liquid of the shell of the fire extinguishing bomb: mixing carrageenan: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water is mixed according to the mass ratio of 1: 0.4: 0.2: 0.03: 0.4: 0.01: 0.01: 0.3, weighing sorbitol, PEG400, hydroxypropyl starch, talcum powder and glass beads, adding water according to the formula amount, dissolving until the solution is clear, adding weighed gelatin, enabling the gelatin to be in contact with the solution components, sealing, putting the mixture into a dark place, swelling for 10 hours, heating at 40 ℃, stirring and dissolving, adding glycerol when the mixture is hot, carrying out ultrasonic treatment for 20 minutes after the mixture has certain fluidity to remove bubbles, wherein the viscosity of the glue solution is 2700MPa s.
Step 3, immersing the core material prepared in the step 1 in the precursor liquid of the shell of the fire extinguishing bomb prepared in the step 2 for 1s, and taking out to obtain a precursor of the fire extinguishing bomb;
and 4, placing the precursor prepared in the step 3 in a hot air environment at 35 ℃ for hardening to prepare the perfluorohexanone fire extinguishing bomb, wherein the mass percentage of the core to the shell of the fire extinguishing bomb is 98.8%: 1.2 percent and the size of the fire extinguishing bomb is 0.3cm3。
Example 5:
step 1, preparing the bullet core: mixing perfluorohexanone: silica micropowder: water is mixed according to the mass ratio of 1: 1.7: 0.03 was weighed and mixed to form a solid core shot.
Step 2, preparing a precursor liquid of the shell of the fire extinguishing bomb: mixing hydroxypropyl methylcellulose: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water is mixed according to the mass ratio of 1: 0.6: 0.3: 0.07: 0.6: 0.02: 0.02: weighing 0.5, dissolving sorbitol, PEG400, hydroxypropyl starch, talcum powder and glass beads in water according to the formula amount until the solution is clear, adding weighed gelatin, enabling the gelatin to be in contact with the solution components, sealing, putting the mixture in a dark place, swelling for 24 hours, heating and stirring at 70 ℃ for dissolving, adding glycerol when the mixture is hot, carrying out ultrasonic treatment for 40min after the mixture has certain fluidity, removing bubbles, and enabling the viscosity of the glue solution to be 3200MPa & s.
Step 3, immersing the core material prepared in the step 1 in the precursor liquid of the shell of the fire extinguishing bomb prepared in the step 2 for 3s, and taking out to obtain a precursor of the fire extinguishing bomb;
and 4, placing the precursor prepared in the step 3 in a hot air environment at 45 ℃ for hardening to prepare the perfluorohexanone fire extinguishing bomb, wherein the mass percentage of the core to the fire extinguishing bomb is 98.2%: 1.8 percent and the size of the fire extinguishing bomb is 1.2cm3。
Example 6:
step 1, preparing the bullet core: mixing perfluorohexanone: silica micropowder: water is mixed according to the mass ratio of 1: 1.5: 0.02 are weighed and mixed to form a solid core.
Step 2, preparing a precursor liquid of the shell of the fire extinguishing bomb: mixing polyvinyl alcohol: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water is mixed according to the mass ratio of 1: 0.5: 0.25: 0.04: 0.4: 0.015: 0.015: weighing sorbitol, PEG400, hydroxypropyl starch, talcum powder and glass beads, adding water according to the prescription amount, dissolving until the solution is clear, adding weighed gelatin, enabling the gelatin to be in contact with the solution components, sealing, putting the mixture in a dark place, swelling for 15h, heating at 50 ℃, stirring and dissolving, adding glycerol when the mixture is hot, carrying out ultrasonic treatment for 30min after the mixture has certain fluidity, and removing bubbles, wherein the viscosity of the glue solution is 2900MPa s.
Step 3, immersing the core material prepared in the step 1 in the precursor liquid of the shell of the fire extinguishing bomb prepared in the step 2 for 2s, and taking out to obtain a precursor of the fire extinguishing bomb;
and 4, placing the precursor prepared in the step 3 in a hot air environment at 40 ℃ for hardening to prepare the perfluorohexanone fire extinguishing bomb, wherein the mass percentage of the core to the shell of the fire extinguishing bomb is 98.8%: 1.2 percent and the size of the fire extinguishing bomb is 0.7cm3。
Example 7:
step 1, preparing the bullet core: mixing perfluorohexanone: silica micropowder: water is mixed according to the mass ratio of 1: 1.1: 0.01 are weighed and mixed to form a solid core shot.
Step 2, preparing a precursor liquid of the shell of the fire extinguishing bomb: mixing acrylic resin IV: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water is mixed according to the mass ratio of 1: 0.4: 0.2: 0.03: 0.4: 0.01: 0.01: 0.3, weighing sorbitol, PEG400, hydroxypropyl starch, talcum powder and glass beads, adding water according to the formula amount, dissolving until the solution is clear, adding weighed gelatin, enabling the gelatin to be in contact with the solution components, sealing, putting the mixture into a dark place, swelling for 10 hours, heating at 40 ℃, stirring and dissolving, adding glycerol when the mixture is hot, carrying out ultrasonic treatment for 20 minutes after the mixture has certain fluidity to remove bubbles, wherein the viscosity of the glue solution is 2700MPa s.
Step 3, immersing the core material prepared in the step 1 in the precursor liquid of the shell of the fire extinguishing bomb prepared in the step 2 for 1s, and taking out to obtain a precursor of the fire extinguishing bomb;
and 4, placing the precursor prepared in the step 3 in a hot air environment at 35 ℃ for hardening to prepare the perfluorohexanone fire extinguishing bomb, wherein the mass percentage of the core to the shell of the fire extinguishing bomb is 98.8%: 1.2 percent and the size of the fire extinguishing bomb is 0.3cm3。
Case (2):
when a user in Xian City is engaged in the work of the veneer sheet for a long time, the perfluorohexanone fire extinguishing bomb obtained in the embodiment 3 is embedded into the veneer particle sheet to form a flame-retardant plate, so that the flame-retardant effect is effectively achieved.
The invention provides a preparation method and an application method of a perfluorohexanone fire extinguishing bomb, which utilize the characteristics that perfluorohexanone is used for removing residues after fire extinguishing and can be safely applied to places with people, and provides the preparation method and the application method of the perfluorohexanone fire extinguishing bomb.
Claims (6)
1. The perfluorohexanone fire extinguishing bomb is characterized by comprising the following components in percentage by mass: 98.2-98.8% of a bullet core and 1.2-1.8% of a shell of a fire extinguishing bullet, wherein the sum of the mass percentages of the components is 100%, the shell of the fire extinguishing bullet is obtained by drying a shell precursor liquid of the fire extinguishing bullet, and the shell precursor liquid of the fire extinguishing bullet comprises the following components in percentage by mass: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water 1: 0.4-0.6: 0.2-0.3: 0.03 to 0.07: 0.4-0.6: 0.01-0.02: 0.01-0.02: 0.3-0.5, wherein the bullet core consists of the following components in percentage by mass: silica micropowder: water is mixed according to the mass ratio of 1: 1.1-1.7: 0.01 to 0.03.
2. The perfluorohexanone fire extinguishing bomb according to claim 1, wherein the size of the fire extinguishing bomb is 0.3-1.2 cm3。
3. The perfluorohexanone fire extinguishing bomb according to claim 1, wherein the gelatin can be replaced by any one of carrageenan, hydroxypropyl methylcellulose, polyvinyl alcohol or acrylic resin IV.
4. The perfluorohexanone fire extinguishing bomb according to claim 1, wherein the glass beads have a particle size of 10-250 μm.
5. A preparation method of a perfluorohexanone fire extinguishing bomb is characterized by comprising the following specific operation steps:
step 1, preparing the bullet core: mixing perfluorohexanone: silica micropowder: water is mixed according to the mass ratio of 1: 1.1-1.7: 0.01-0.03 weight percent and mixing to form a solid core bullet;
step 2, preparing a shell of the fire extinguishing bomb: mixing gelatin: glycerol: sorbitol: PEG 400: hydroxypropyl starch: talc powder: glass beads: water is mixed according to the mass ratio of 1: 0.4-0.6: 0.2-0.3: 0.03 to 0.07: 0.4-0.6: 0.01-0.02: 0.01-0.02: weighing 0.3-0.5, dissolving sorbitol, PEG400, hydroxypropyl starch, talcum powder and glass beads in water until the solution is clear, adding gelatin, sealing, swelling in the dark for 10-24 h, heating at 40-70 ℃, stirring for dissolving, and adding glycerol while hot to obtain a shell precursor solution of the fire extinguishing bomb;
step 3, immersing the core material prepared in the step 1 in the fire extinguishing bomb shell precursor liquid prepared in the step 2 for 1-3 seconds, and taking out to obtain a fire extinguishing bomb precursor;
and 4, putting the precursor prepared in the step 3 in a hot air environment at 35-45 ℃ for hardening to prepare the perfluorohexanone fire extinguishing bomb.
6. The preparation method of the perfluorohexanone fire extinguishing bomb according to claim 5, wherein the glycerol is added in the step 2, and after the mixture has certain fluidity, the mixture is subjected to ultrasonic treatment for 20-40 min to obtain a glue solution, and the viscosity of the glue solution is 2700-3200 MPa-s.
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| CN114470604A (en) * | 2022-02-25 | 2022-05-13 | 消之源科技技术有限公司 | Protective material for actively extinguishing high-voltage electric arc |
| CN116271675A (en) * | 2023-03-22 | 2023-06-23 | 湖北火控安防科技有限公司 | Perfluoro-hexanone microcapsule fire extinguishing medium and preparation method thereof |
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| CN104127973A (en) * | 2014-06-30 | 2014-11-05 | 苏州萃智新技术开发有限公司 | Fire-extinguishing bomb |
| CN110448851A (en) * | 2019-09-05 | 2019-11-15 | 中国人民警察大学 | A kind of core-shell structured powder firing-fighting medium and its preparation method and application |
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| CN116271675A (en) * | 2023-03-22 | 2023-06-23 | 湖北火控安防科技有限公司 | Perfluoro-hexanone microcapsule fire extinguishing medium and preparation method thereof |
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