CN113289304B - Smoke-inhibiting perfluorohexanone fire extinguishing agent and preparation method thereof - Google Patents
Smoke-inhibiting perfluorohexanone fire extinguishing agent and preparation method thereof Download PDFInfo
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- CN113289304B CN113289304B CN202110673420.6A CN202110673420A CN113289304B CN 113289304 B CN113289304 B CN 113289304B CN 202110673420 A CN202110673420 A CN 202110673420A CN 113289304 B CN113289304 B CN 113289304B
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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
- A62D1/0028—Liquid extinguishing substances
- A62D1/005—Dispersions; Emulsions
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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 smoke-inhibiting perfluorohexanone fire extinguishing agent and a preparation method thereof, wherein the smoke-inhibiting perfluorohexanone fire extinguishing agent comprises the following steps: the perfluorohexanone, the halloysite nanotube and the bamboo charcoal powder are uniformly mixed, then the aluminum hydroxide, the magnesium hydroxide, the 1-benzyl benzimidazole tetrafluoroborate, the calcium stearate and the dihydroxybismuth nitrate are sequentially added and uniformly stirred to obtain the smoke-inhibiting perfluorohexanone fire extinguishing agent, the 1-benzyl benzimidazole tetrafluoroborate added in the invention is an excellent surfactant, most of inorganic/organic fire retardants in the whole system can be subjected to surface modification, the dispersibility of the fire retardant in the whole fire extinguishing agent is improved, the stability of the whole fire extinguishing agent system is maintained, the purposes of synergistic fire extinguishing and flame retarding are achieved, the halloysite nanotube and the bamboo charcoal powder are used as fire source dispersing agents, the spread of flame can be effectively inhibited, the fire extinguishing effect of the fire extinguishing agent is further improved, and meanwhile, the halloysite nanotube and the bamboo charcoal powder have rich pore structures, can adsorb the generated toxic gas and smoke.
Description
Technical Field
The invention relates to the technical field of fire extinguishing agent preparation, in particular to a smoke-inhibiting type perfluorohexanone fire extinguishing agent and a preparation method thereof.
Background
With the intensive research on fire extinguishing agent substitutes, the development of low-toxicity, low-smoke, green and environment-friendly fire extinguishing agents gradually becomes the development direction of the field of fire extinguishing agents, at present, fluoroalkyl substitutes have potential advantages, perfluorohexanone is particularly remarkable in the aspect of performance, perfluorohexanone belongs to fluorinated ketone compounds, is clear, colorless, odorless and low-toxicity liquid at normal temperature, has the relative molecular mass of 316.04 and has the density of about 1.6g/cm3The evaporation heat is only 4% of that of water, and the vapor pressure is 25 times of that of water, so that the fire extinguishing agent can absorb heat to gasify to achieve the fire extinguishing effect.
At present, the demand of plastic products is increasing day by day, polyvinyl chloride is one of the earliest industrialized plastic products, linear polymer is obtained by vinyl chloride monomer through free radical polymerization reaction under the action of initiator, compared with other plastic products, PVC is the second most common material in the building field because of the characteristics of flame retardancy, higher strength, chemical resistance, excellent electrical insulation and the like, and PVC can generate a large amount of corrosive toxic gas and smoke in the combustion process, once a fire disaster occurs, dense smoke containing a large amount of corrosive gas can threaten human beings.
Patent document CN112546528A discloses a stable perfluorohexanone milk and a preparation method thereof, which comprises the following components in percentage by mass: the emulsion comprises, by mass, 25-50% of polysorbate-8028.75, 25-50% of polyoxyethylene 40 hydrogenated castor oil aqueous solution, 12.5-37.5% of polyethylene glycol and 2.5-8.75% of perfluorohexanone, wherein the sum of the mass percentages of the components is 100%.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a smoke-inhibiting perfluorohexanone fire extinguishing agent and a preparation method thereof, and solves the technical problem that the existing fire extinguishing agent cannot achieve fire extinguishing, flame retarding and smoke inhibiting effects synergistically.
In order to achieve the purpose, the invention adopts the following technical scheme:
the smoke-inhibiting perfluorohexanone fire extinguishing agent is prepared from the following raw materials in parts by weight: 30-40 parts of perfluorohexanone, 10-15 parts of halloysite nanotubes, 12-14 parts of aluminum hydroxide, 8-9 parts of magnesium hydroxide, 22.5-23.5 parts of 1-benzyl benzimidazole tetrafluoroborate, 2.3-2.9 parts of calcium stearate, 2.3-2.9 parts of bismuth nitrate and 12.3-12.9 parts of bamboo charcoal powder.
Preferably, the preparation of the fire extinguishing agent comprises the following raw materials in parts by weight: 32-38 parts of perfluorohexanone, 12-13 parts of halloysite nanotubes, 12.5-13.5 parts of aluminum hydroxide, 8.5 parts of magnesium hydroxide, 23 parts of 1-benzyl benzimidazole tetrafluoroborate, 2.5 parts of calcium stearate, 2.5 parts of bismuth nitrate and 12.5 parts of bamboo charcoal powder.
Preferably, the particle size of the bamboo charcoal powder is less than 0.5 mm.
The invention also provides a preparation method of the smoke-inhibiting perfluorohexanone fire extinguishing agent, which comprises the following steps: and (2) uniformly mixing the perfluorohexanone, the halloysite nanotube and the bamboo charcoal powder, then sequentially adding aluminum hydroxide, magnesium hydroxide, 1-benzyl benzimidazole tetrafluoroborate, calcium stearate and dihydroxybismuth nitrate, and uniformly stirring and mixing to obtain the smoke-inhibiting perfluorohexanone fire extinguishing agent.
Preferably, the stirring temperature is 30-40 ℃ and the stirring time is 1-2 h.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention provides a smoke-inhibiting perfluorohexanone fire extinguishing agent and a preparation method thereof, wherein 1-benzyl benzimidazole tetrafluoroborate added in the invention is an excellent surfactant, and can carry out surface modification on most inorganic/organic fire retardants in the whole system, thereby improving the dispersibility of the fire retardants in the whole fire extinguishing agent, maintaining the stability of the whole fire extinguishing agent system and achieving the purposes of synergistic fire extinguishing and flame retarding.
(2) The invention provides a smoke-inhibiting type perfluorohexanone fire extinguishing agent and a preparation method thereof, the invention adopts perfluorohexanone as a main material of the fire extinguishing agent, adopts bamboo charcoal powder as a carbon source, the two materials can form a compact charcoal layer on the surface of combustible materials in a mutual matching manner to prevent flame from spreading, and the added aluminum hydroxide and magnesium hydroxide can be adsorbed on the surface of the charcoal layer, so that the smoke-inhibiting type perfluorohexanone fire extinguishing agent has good heat absorption effect, obviously improves the fire extinguishing effect of a dry powder fire extinguishing agent, and simultaneously improves the thermal stability of the dry powder fire extinguishing agent.
(3) The invention provides a smoke-inhibiting perfluorohexanone fire extinguishing agent and a preparation method thereof.
(4) The invention provides a smoke-suppressing perfluorohexanone fire extinguishing agent and a preparation method thereof.
Detailed Description
The present invention will be described in more detail with reference to specific preferred embodiments, but the present invention is not limited to the following embodiments.
It should be noted that, unless otherwise specified, the chemical reagents involved in the present invention are commercially available.
The sodium 1-benzylbenzimidazole tetrafluoroborate used in this example was prepared from "the synthesis of benzimidazole ionic liquids and their use in extraction and separation", procurage, university of Fujian university Master academic thesis ".
Example 1
A preparation method of a smoke-inhibiting perfluorohexanone fire extinguishing agent comprises the following steps:
30g of perfluorohexanone, 15g of halloysite nanotube and 12.5g of bamboo charcoal powder with the particle size of 0.3mm are uniformly mixed, then 12g of aluminum hydroxide, 8g of magnesium hydroxide, 22.5g of 1-benzylbenzimidazole sodium tetrafluoroborate, 2.5g of calcium stearate and 2.5g of bismuth subnitrate are sequentially added, and the mixture is stirred for 2 hours at the temperature of 30 ℃, so that the smoke-inhibiting perfluorohexanone fire extinguishing agent is obtained.
Example 2
A preparation method of a smoke-inhibiting perfluorohexanone fire extinguishing agent comprises the following steps:
40g of perfluorohexanone, 10g of halloysite nanotube and 12.3g of bamboo charcoal powder with the particle size of 0.4mm are uniformly mixed, then 14g of aluminum hydroxide, 8g of magnesium hydroxide, 23g of 1-benzyl benzimidazole sodium tetrafluoroborate, 2.7g of calcium stearate and 2.3g of dihydroxybismuth nitrate are sequentially added, and the mixture is stirred for 1 hour at the temperature of 35 ℃, so that the smoke-inhibiting perfluorohexanone fire extinguishing agent is obtained.
Example 3
A preparation method of a smoke-inhibiting perfluorohexanone fire extinguishing agent comprises the following steps:
32g of perfluorohexanone, 12g of halloysite nanotubes and 12.5g of bamboo charcoal powder with the particle size of 0.4mm are uniformly mixed, then 12.5g of aluminum hydroxide, 8.5g of magnesium hydroxide, 23g of 1-benzyl benzimidazole sodium tetrafluoroborate, 2.5g of calcium stearate and 2.5g of bismuth subnitrate are sequentially added, and the mixture is stirred for 1.5 hours at the temperature of 35 ℃ to obtain the smoke-suppressing perfluorohexanone fire extinguishing agent.
Example 4
A preparation method of a smoke-inhibiting perfluorohexanone fire extinguishing agent comprises the following steps:
uniformly mixing 35g of perfluorohexanone, 13g of halloysite nanotube and 12.5g of bamboo charcoal powder with the particle size of 0.3mm, then sequentially adding 13g of aluminum hydroxide, 8.5g of magnesium hydroxide, 23g of 1-benzylbenzimidazole sodium tetrafluoroborate, 2.5g of calcium stearate and 2.5g of bismuth subnitrate, and stirring at 40 ℃ for 1.5h to obtain the smoke-inhibiting perfluorohexanone fire extinguishing agent.
Example 5
A preparation method of a smoke-inhibiting perfluorohexanone fire extinguishing agent comprises the following steps:
uniformly mixing 36g of perfluorohexanone, 12.5g of halloysite nanotubes and 12.5g of bamboo charcoal powder with the particle size of 0.3mm, then sequentially adding 13.5g of aluminum hydroxide, 8.5g of magnesium hydroxide, 23g of 1-benzylbenzimidazole sodium tetrafluoroborate, 2.5g of calcium stearate and 2.5g of dihydroxybismuth nitrate, and stirring at 35 ℃ for 2 hours to obtain the smoke-suppressing perfluorohexanone fire extinguishing agent.
Comparative example 1
A preparation method of a smoke-inhibiting perfluorohexanone fire extinguishing agent comprises the following steps:
uniformly mixing 36g of perfluorohexanone, 12.5g of halloysite nanotubes and 12.5g of bamboo charcoal powder with the particle size of 0.3mm, then sequentially adding 13.5g of aluminum hydroxide, 8.5g of magnesium hydroxide, 2.5g of calcium stearate and 2.5g of bismuth nitrate, and stirring at 35 ℃ for 2 hours to obtain the perfluorohexanone fire extinguishing agent.
Comparative example 2
A preparation method of a smoke-inhibiting perfluorohexanone fire extinguishing agent comprises the following steps:
stirring 36g of perfluorohexanone, 13.5g of aluminum hydroxide, 8.5g of magnesium hydroxide, 23g of 1-benzylbenzimidazole sodium tetrafluoroborate, 2.5g of calcium stearate and 2.5g of bismuth dihydroxynitrate at 35 ℃ for 2 hours to obtain the perfluorohexanone fire extinguishing agent.
The fire extinguishing agents prepared in examples 1-5 and comparative examples 1-2 were subjected to fire extinguishing performance tests, which specifically included the following steps: according to the fire extinguishing performance test of GB17835-2008 water-based fire extinguishing agent, a class A fire extinguishing test model is determined to be a square wood crib under laboratory conditions, the wood crib is placed on a support during the test, a combustion disc containing 25mL of acetone is placed under the wood crib, the acetone is ignited, the combustion disc is drawn out when the acetone is burnt out, after the wood crib is allowed to burn freely for 1min, the fire extinguishing agents prepared in examples 1-5 and comparative examples 1-2 are respectively added into an electric sprayer to start fire extinguishing, and the test results are shown in the following table:
| example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 | Comparative example 2 | |
| Time of fire(s) | 10.36 | 10.29 | 9.76 | 9.68 | 9.23 | 13.15 | 14.26 |
| Smoke out condition | Is free of | Is free of | Is free of | Is free of | Is free of | Is free of | Is provided with |
It can be seen from the table that the fire extinguishing agent prepared by the embodiment can achieve the purpose of quickly extinguishing fire, and has good smoke suppression effect in the fire extinguishing process, 1-benzyl benzimidazole sodium tetrafluoroborate is not added in the comparative example 1, and the fire extinguishing time is obviously increased, because the addition of the 1-benzyl benzimidazole sodium tetrafluoroborate can improve the dispersibility of the fire retardant in the whole fire extinguishing agent, maintain the stability of the whole fire extinguishing agent system, achieve the purposes of synergistic fire extinguishing and fire retardation, and shorten the fire extinguishing time, the comparative example 2 is not added with halloysite nanotubes and bamboo charcoal powder, the fire extinguishing time is increased, and meanwhile, smoke is generated in the fire extinguishing process, which shows that the addition of halloysite nanotubes and bamboo charcoal powder can effectively inhibit the spread of fire, further improve the fire extinguishing effect of the fire extinguishing agent, and the halloysite nanotubes and bamboo charcoal powder have rich pore structures, can adsorb the generated toxic gas and smoke.
Finally, it is to be noted that: the above examples do not limit the invention in any way. It will be apparent to those skilled in the art that various modifications and improvements can be made to the present invention. Accordingly, any modification or improvement made without departing from the spirit of the present invention is within the scope of the claimed invention.
Claims (5)
1. The smoke-inhibiting perfluorohexanone fire extinguishing agent is characterized by comprising the following raw materials in parts by weight: 30-40 parts of perfluorohexanone, 10-15 parts of halloysite nanotubes, 12-14 parts of aluminum hydroxide, 8-9 parts of magnesium hydroxide, 22.5-23.5 parts of 1-benzyl benzimidazole sodium tetrafluoroborate, 2.3-2.9 parts of calcium stearate, 2.3-2.9 parts of bismuth nitrate and 12.3-12.9 parts of bamboo charcoal powder.
2. The smoke-suppressing perfluorohexanone fire extinguishing agent according to claim 1, wherein the fire extinguishing agent is prepared from the following raw materials in parts by weight: 32-38 parts of perfluorohexanone, 12-13 parts of halloysite nanotubes, 12.5-13.5 parts of aluminum hydroxide, 8.5 parts of magnesium hydroxide, 23 parts of 1-benzyl benzimidazole sodium tetrafluoroborate, 2.5 parts of calcium stearate, 2.5 parts of bismuth nitrate and 12.5 parts of bamboo charcoal powder.
3. The smoke suppressing perfluorohexanone fire extinguishing agent according to claim 1, wherein the bamboo charcoal powder has a particle size of less than 0.5 mm.
4. A process for the preparation of a smoke-suppressant perfluorohexanone fire-extinguishing agent according to any one of claims 1 to 3, comprising the steps of: and (2) uniformly mixing the perfluorohexanone, the halloysite nanotube and the bamboo charcoal powder, then sequentially adding aluminum hydroxide, magnesium hydroxide, 1-benzyl benzimidazole sodium tetrafluoroborate, calcium stearate and dihydroxybismuth nitrate, and uniformly stirring and mixing to obtain the smoke-inhibiting perfluorohexanone fire extinguishing agent.
5. A method for preparing the smoke-suppressing perfluorohexanone fire extinguishing agent according to claim 4, wherein the stirring temperature is 30-40 ℃ and the stirring time is 1-2 h.
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| CN114652994B (en) * | 2022-04-22 | 2023-05-16 | 山东科技大学 | Rapid sealing explosion-proof foaming agent for coal mine tunnel, generator and sealing explosion-proof method |
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| CN115558261B (en) * | 2022-09-28 | 2024-01-12 | 安徽元梦生物基材料科技有限公司 | Flame-retardant smoke-suppressing polylactic acid material and preparation method thereof |
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| CN107715364A (en) * | 2017-11-10 | 2018-02-23 | 蚌埠市龙泰消防有限公司 | A kind of smoke-inhibiting type powder extinguishing agent and preparation method thereof |
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