CN115814326B - Fire extinguishing agent and preparation method and application thereof - Google Patents
Fire extinguishing agent and preparation method and application thereof Download PDFInfo
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- CN115814326B CN115814326B CN202211478435.8A CN202211478435A CN115814326B CN 115814326 B CN115814326 B CN 115814326B CN 202211478435 A CN202211478435 A CN 202211478435A CN 115814326 B CN115814326 B CN 115814326B
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- Fire-Extinguishing Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a fire extinguishing agent, a preparation method and application thereof. The fire extinguishing agent comprises a plant modified flame retardant, a natural emulsion-increasing agent, a bio-based surfactant, an antipruritic and detumescent agent, a bacteriostatic agent, a pH regulator and water. The fire extinguishing agent can isolate air well, extinguish fire rapidly, has excellent permeability, effectively prevents re-combustion, can not produce harmful substances in the fire extinguishing process, affects the health of firefighters, can also have good effects of wetting, detumescence, anti-inflammation and relieving stinging on skin, and meanwhile, each component of the fire extinguishing agent is natural or degradable substances, effectively protects environment and personnel safety, and can achieve good self-rescue escape effect especially in the aspect of being used for firefighter self-rescue.
Description
Technical Field
The invention belongs to the technical field of fire extinguishing agents, and particularly relates to a fire extinguishing agent, a preparation method and application thereof.
Background
The fire disaster has the characteristics of large range, tragic, long time, strong fire and the like, and the dangerous moment can fall on the head of a firefighter, so that the firefighter not only needs to ensure the safety of others, but also needs to ensure the safety of the firefighter, and can better defend the safety of others because of the safety of the firefighter. However, no special fire-fighting self-rescue fire extinguishing agent exists in the market at present. In the existing common extinguishing agent, a large amount of smoke-like dust is sprayed out of a dry powder extinguisher, and the dust sprayed out of the dry powder extinguisher can be quickly settled to achieve the aim of extinguishing fire, but if the fire extinguisher is directly sprayed to a person, a large amount of particulate dust can be sucked into the lung, so that a firefighter can suffocate; the halogen fire extinguishing agent can decompose toxic compounds at high temperature, and a gas mask is required to be worn when the halogen fire extinguishing agent is used, so that the halogen fire extinguishing agent has certain toxicity, is harmful to human bodies, and is not suitable for being used as a self-rescue fire extinguishing agent for firefighters; the aerosol fire extinguishing agent releases combustion reaction products, the reaction products contain solids and gases, the gases disperse solid particles to form aerosol, the controllability is poor, and high-temperature injury is easily caused to personnel and objects, so that the visibility of firefighters is greatly reduced, and the firefighters are more unfavorable for self-rescue and escape; the organophosphorus fire extinguishing agent has high toxicity and high corrosiveness, and is easy to cause permanent poisoning of firefighters in a long-time fire extinguishing process.
The most suitable fire-fighting self-rescue fire extinguishing agent is a water-based fire extinguishing agent, and for the water mist self-rescue fire extinguishing agent, the self-rescue fire extinguishing efficiency is very slow and the water demand is very large under the condition of simply using the water mist, so that the golden time for the self-rescue of a firefighter is greatly wasted, and the fire-fighting self-rescue fire extinguishing agent is relatively safe in one minute after the fire disaster occurs according to actual combat and training of the firefighter. Therefore, development of a self-rescue fire extinguishing agent suitable for firefighters is urgent.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, an object of the present invention is to propose a fire extinguishing agent, a method for its preparation and its use. The fire extinguishing agent can isolate air well, extinguish fire rapidly, has excellent permeability, effectively prevents re-combustion, can not produce harmful substances in the fire extinguishing process, affects the health of firefighters, can also have good effects of wetting, detumescence, anti-inflammation and relieving stinging on skin, and meanwhile, each component of the fire extinguishing agent is natural or degradable substances, effectively protects environment and personnel safety, and can achieve good self-rescue escape effect especially in the aspect of being used for firefighter self-rescue.
In one aspect of the invention, a fire extinguishing agent is provided. According to an embodiment of the present invention, the fire extinguishing agent includes a plant modified flame retardant, a natural emulsion-increasing agent, a bio-based surfactant, an antipruritic and detumescent agent, a bacteriostatic agent, a pH regulator, and water.
According to the fire extinguishing agent disclosed by the embodiment of the invention, the fire extinguishing agent comprises a plant modified fire retardant, a natural emulsion-increasing agent, a bio-based surfactant, an antipruritic detumescence agent, a bacteriostat, a pH regulator and water, wherein the plant modified fire retardant has excellent char formation performance, is efficient in flame retardance, does not volatilize during combustion prevention, does not generate corrosive gas and black smoke, mainly depends on the surface of a material to form a porous foam coke layer, so that heat is difficult to penetrate through a formed coke layer condensed phase, oxygen is prevented from entering a combustion area, gaseous or liquid products generated by combustion are prevented from overflowing the surface of the material, and the plant modified fire retardant can be completely biodegraded, so that the fire extinguishing agent is environment-friendly and pollution-free and harmless to people and environment; the natural emulsion-increasing agent has excellent amphoteric molecular structure, is a nano emulsion with good dispersion state under the action of high-speed shearing force after being homogenized, is close to active ingredients of sebum structure, has good wetting effect on skin while not hurting skin, can well protect firefighters from being burned under extreme conditions at high temperature, and is a natural skin protector; the bio-based surfactant has extremely strong permeability, can reduce the surface tension, and has good permeability to forest, soil and cloth; the pH regulator can regulate acidity to play a role in corrosion prevention, thereby reducing the adverse effects of high temperature on a flame retardant structure, a fire extinguishing agent and the like, and avoiding the phenomenon of deterioration and rust of surrounding equipment or other articles after fire extinguishment; on the other hand, when the plant modified flame retardant is in a water-soluble state, the plant modified flame retardant can form a flame-retardant water film with a natural emulsion increasing agent through emulsification, so that a natural barrier is formed, the effect of separating oxygen is played again, the biological-based surfactant can enable the plant modified flame retardant and water to permeate into a fuel, the fire extinguishing efficiency is improved, meanwhile, the back combustion can be well prevented, meanwhile, the itching-relieving detumescence agent and the bacteriostatic agent can permeate into the skin surface layer well, the effects of instantly cold compress and diminishing inflammation, swelling and pain are prevented, and further, better safety guarantee is carried out on firefighters, the interaction of the itching-relieving detumescence agent and the bacteriostatic agent is achieved under the moderate adjustment of an acid and an alkali by the pH regulator, the cooling effect is achieved, and the pain of firefighters can be well reduced. Therefore, the fire extinguishing agent can isolate air well, extinguish fire rapidly, has excellent permeability, effectively prevents re-combustion, not only does not generate harmful substances in the fire extinguishing process and influence the health of firefighters, but also has good effects of wetting, detumescence, anti-inflammation and relieving stinging on skin, and meanwhile, each component of the fire extinguishing agent is natural or degradable substances, so that the environment and personnel safety are effectively protected, and particularly in the aspect of being used for firefighter self-rescue, the good self-rescue escape effect can be achieved.
In addition, the fire extinguishing agent according to the above embodiment of the present invention may further have the following technical features:
according to the embodiment of the invention, based on the mass percentage of the fire extinguishing agent, the plant modified flame retardant accounts for 2-25%, the natural emulsion increasing agent accounts for 0.5-18%, the bio-based surfactant accounts for 0.5-20%, the itching relieving and swelling reducing agent accounts for 0.2-8%, the bacteriostat accounts for 0.02-5%, the pH regulator accounts for 0.1-7%, and the water accounts for 50-95%. Therefore, the fire extinguisher can well isolate air and quickly extinguish fire, prevent the afterburning, protect environment and personnel safety.
According to an embodiment of the present invention, the plant-modified flame retardant includes at least one of sulfonated cellulose and phytic acid.
According to an embodiment of the invention, the natural emulsion comprises at least one of lecithin and lanolin.
According to an embodiment of the invention, the bio-based surfactant comprises at least one of rhamnolipids, sophorolipids and trehalose lipids.
According to an embodiment of the present invention, the antipruritic and repercussive agent includes at least one of allantoin, panthenol and peppermint.
According to an embodiment of the present invention, the bacteriostatic agent comprises at least one of potassium sorbate, sorbic acid, and chlorobutanol.
According to an embodiment of the present invention, the pH adjuster includes at least one of citric acid, fumaric acid, and succinic acid.
In another aspect of the present invention, a method of preparing the above fire extinguishing agent is provided. According to an embodiment of the present invention, a plant-modified flame retardant, a natural emulsion-increasing agent, a bio-based surfactant, an antipruritic and detumescent agent, a bacteriostatic agent, a pH regulator and water are mixed and stirred to obtain a fire extinguishing agent. Therefore, the fire extinguishing agent which can well isolate air, quickly extinguish fire, prevent re-combustion and effectively protect environment and personnel safety can be prepared.
In addition, the method for preparing a fire extinguishing agent according to the above embodiment of the present invention may further have the following technical features:
according to an embodiment of the invention, the method comprises the following steps: (1) Mixing and stirring water, a plant modified flame retardant, a bio-based surfactant and a natural emulsion increasing agent until the water, the plant modified flame retardant, the bio-based surfactant and the natural emulsion increasing agent are completely dissolved so as to obtain a main mixture; (2) Mixing and stirring the antipruritic detumescence agent, the bacteriostatic agent, the pH regulator and the main mixture to obtain the fire extinguishing agent. Therefore, the fire extinguishing agent which can isolate air efficiently, extinguish fire rapidly, prevent re-combustion and protect environment and personnel effectively can be prepared.
According to an embodiment of the present invention, in the step (1), the stirring speed is 800 to 1400 rpm.
According to an embodiment of the present invention, in the step (2), the stirring speed is 600 to 1000 rpm, and the time is 20 to 30 minutes.
In a third aspect of the invention, the invention provides a fire extinguisher. According to an embodiment of the present invention, the fire extinguisher adopts the fire extinguishing agent described above or the fire extinguishing agent prepared by the method described above. Therefore, the fire extinguisher can extinguish fire rapidly and effectively, and ensure personnel safety.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
The following detailed description of the embodiments of the invention is intended to be illustrative of the invention and is not to be taken as limiting the invention.
In one aspect of the invention, the invention provides a fire extinguishing agent. According to an embodiment of the present invention, the fire extinguishing agent includes a plant modified flame retardant, a natural emulsion-increasing agent, a bio-based surfactant, an antipruritic and detumescent agent, a bacteriostatic agent, a pH regulator, and water.
According to the fire extinguishing agent disclosed by the embodiment of the invention, the fire extinguishing agent comprises a plant modified fire retardant, a natural emulsion-increasing agent, a bio-based surfactant, an antipruritic detumescence agent, a bacteriostat, a pH regulator and water, wherein the plant modified fire retardant has excellent char formation performance, is efficient in flame retardance, does not volatilize when being prevented from burning, does not generate corrosive gas, does not generate black smoke, mainly forms a porous foam coke layer on the surface of a material, enables heat to penetrate through a formed coke layer condensed phase difficultly, prevents oxygen from entering a burning area, prevents gaseous or liquid products generated by burning from overflowing the surface of the material, and is completely biodegradable, green and environment-friendly and pollution-free and harmless to people; the natural emulsion-increasing agent has excellent amphoteric molecular structure, is a nano emulsion with good dispersion state under the action of high-speed shearing force after being homogenized, is close to active ingredients of sebum structure, has good wetting effect on skin while not hurting skin, can well protect firefighters from being burned under extreme conditions at high temperature, and is a natural skin protector; the bio-based surfactant has extremely strong permeability, can reduce the surface tension, and has very good permeability to forest, soil and cloth; the pH regulator can regulate acidity to play a role in corrosion prevention, thereby reducing the adverse effects of high temperature on a flame retardant structure, a fire extinguishing agent and the like, and avoiding the phenomenon of deterioration and rust of surrounding equipment or other articles after fire extinguishment; on the other hand, when the plant modified flame retardant is in a water-soluble state, the plant modified flame retardant can form a flame-retardant water film with a natural emulsion increasing agent through emulsification, so that a natural barrier is formed, the effect of separating oxygen is played again, the biological-based surfactant can enable the plant modified flame retardant and water to permeate into a fuel, the fire extinguishing efficiency is improved, meanwhile, the back combustion can be well prevented, meanwhile, the itching-relieving detumescence agent and the bacteriostatic agent can permeate into the skin surface layer well, the effects of instantly cold compress and diminishing inflammation, swelling and pain are prevented, and further, better safety guarantee is carried out on firefighters, the interaction of the itching-relieving detumescence agent and the bacteriostatic agent is achieved under the moderate adjustment of an acid and an alkali by the pH regulator, the cooling effect is achieved, and the pain of firefighters can be well reduced. Therefore, the fire extinguishing agent can isolate air well, extinguish fire rapidly, has excellent permeability, effectively prevents re-combustion, not only does not generate harmful substances in the fire extinguishing process and influence the health of firefighters, but also has good effects of wetting, detumescence, anti-inflammation and relieving stinging on skin, and meanwhile, each component of the fire extinguishing agent is natural or degradable substances, so that the environment and personnel safety are effectively protected, and particularly in the aspect of being used for firefighter self-rescue, the good self-rescue escape effect can be achieved.
It should be noted that, the fire extinguishing agents of the present application are natural or biodegradable materials, so as to achieve the effects of rapid fire extinguishment and environmental and personnel safety, and the plant modified flame retardant, the natural emulsion-increasing agent, the bio-based surfactant, the antipruritic detumescence agent, the bacteriostatic agent and the pH regulator are conventional materials in the art, and can be selected by those skilled in the art according to the actual practice, for example, the plant modified flame retardant includes but is not limited to at least one of sulfonated cellulose and phytic acid; natural emulsions include, but are not limited to, at least one of lecithin and lanolin; the bio-based surfactants include, but are not limited to, at least one of rhamnolipids, sophorolipids, and trehalose lipids; antipruritic and repercussive agents include, but are not limited to, at least one of allantoin, panthenol and peppermint; bacteriostats include, but are not limited to, at least one of potassium sorbate, sorbic acid, and chlorobutanol; the pH adjuster includes, but is not limited to, at least one of citric acid, fumaric acid, and succinic acid.
According to the embodiment of the invention, based on the mass percentage of the fire extinguishing agent, the plant modified flame retardant accounts for 2-25%, the natural emulsion increasing agent accounts for 0.5-18%, the bio-based surfactant accounts for 0.5-20%, the itching relieving and swelling reducing agent accounts for 0.2-8%, the bacteriostat accounts for 0.02-5%, the pH regulator accounts for 0.1-7%, and the water accounts for 50-95%. The inventor finds that if the plant modified flame retardant accounts for too large a ratio, the weight of the self-rescue fire extinguishing agent is increased, so that the fire extinguisher is inconvenient to carry and use, meanwhile, the fire extinguishing effect is not obviously improved, and if the plant modified flame retardant accounts for too small a ratio, the flame retardant effect is poor, the self-rescue fire extinguishing gold emergency time is increased, and the fire fighter is not facilitated to escape from a fire scene; if the natural emulsion is too large in proportion, the emulsion is too large, so that the system fluidity is poor, even a condensed solid state can appear, the self-rescue fire extinguishing agent injection is not facilitated, even a spray nozzle is blocked, the fire extinguishing agent cannot be effectively injected onto the surface of a combustible material, if the natural emulsion is too small in proportion, the plant modified fire retardant and the natural emulsion are not facilitated to be emulsified to form a flame-retardant water film, oxygen is isolated, if the biological-based surfactant is too large in proportion, the surface tension is reduced to a critical point, no effect is exerted any more, and the weight proportion of invalid components is increased; if the ratio of the bio-based surfactant is too small, the capability of reducing the surface tension and the permeation effect are poor, and meanwhile, the anti-itch and detumescence agent and the bacteriostatic agent are not beneficial to permeate into the skin surface; if the ratio of the antipruritic and repercussive agent is too large or too small, allergy of personnel or incapacitation of antipruritic and repercussive effects may occur; if the ratio of the bacteriostatic agent is too large or too small, skin may be irritated or germs may not be eliminated. Therefore, the fire extinguishing agent with the weight ratio can well isolate air, quickly extinguish fire, prevent afterburning and protect environment and personnel safety.
In another aspect of the present invention, a method of preparing the above fire extinguishing agent is provided. According to an embodiment of the present invention, a plant-modified flame retardant, a natural emulsion-increasing agent, a bio-based surfactant, an antipruritic and detumescent agent, a bacteriostatic agent, a pH regulator and water are mixed and stirred to obtain a fire extinguishing agent. The plant modified flame retardant has excellent char forming performance, high-efficiency flame retardance, does not volatilize during combustion prevention, does not generate corrosive gas and does not generate black smoke, the natural emulsion has an excellent amphoteric molecular structure, is close to active ingredients of a sebum structure, can well moisten skin while being free of hurt, the biological-based surfactant has extremely strong permeability, can reduce surface tension, can form a flame retardant water film with the natural emulsion through emulsification when the plant modified flame retardant is in a water-soluble state, further forms a natural barrier, plays a role of separating oxygen again, can well prevent back combustion while improving fire extinguishing efficiency, can well permeate the antipruritic agent and the bacteriostatic agent into the skin surface layer, can achieve the effects of instantaneously diminishing inflammation, relieving swelling and pain, reducing the pain of a person, and can further reduce the mutual pain of the anti-inflammatory agent, and the pH regulator. Therefore, the fire extinguishing agent which can well isolate air, quickly extinguish fire, prevent re-combustion and effectively protect environment and personnel safety can be prepared by adopting the method. It should be noted that the features and advantages described for the fire extinguishing agent described above are equally applicable to the method, and are not described here again.
According to an embodiment of the invention, the method comprises the following steps:
s100: mixing water, plant modified fire retardant, bio-based surfactant and natural emulsion
In the step, water, a plant modified flame retardant, a bio-based surfactant and a natural emulsion-increasing agent are added into a dispersion barrel, and are mixed and stirred until the materials are completely dissolved and no visible particles exist, so that a main mixture is obtained. Further, the stirring speed is controlled to be 800-1400 rpm.
S200: mixing antipruritic and detumescent agent, antibacterial agent, pH regulator and main mixture
In the step, the antipruritic and detumescent agent, the bacteriostatic agent, the pH regulator and the main mixture are mixed and stirred to make the feed liquid transparent or semitransparent, thereby obtaining the extinguishing agent. Further, the stirring speed is controlled to be 600-1000 rpm, and the stirring time is controlled to be 20-30 minutes.
S100, the main materials are obtained first, the main materials are well regulated, and then the ingredients or the auxiliary materials are added through S200, so that the addition amount of each ingredient or auxiliary material can be more accurately determined. Therefore, the fire extinguishing agent which can well isolate air, quickly extinguish fire, prevent re-combustion and effectively protect environment and personnel safety can be prepared by adopting the method.
In a third aspect of the invention, the invention provides a fire extinguisher. According to an embodiment of the present invention, the fire extinguisher adopts the fire extinguishing agent described above or the fire extinguishing agent prepared by the method described above. Therefore, the fire extinguisher can extinguish fire rapidly and effectively, and ensure personnel safety. It should be noted that the features and advantages described with respect to the fire extinguishing agent and the preparation method thereof are equally applicable to the fire extinguisher, and are not repeated here.
The invention will now be described with reference to specific examples, which are intended to be illustrative only and not limiting in any way.
Examples 1 to 8 and comparative examples 1 to 6 the fire extinguishing agents and the fire extinguishers were prepared as follows:
(1) Adding water into a stirring and dispersing barrel according to mass percent, adding a plant modified flame retardant, a bio-based surfactant and a natural emulsion-increasing agent respectively, stirring and dispersing at a low speed, and uniformly and fully stirring at a rotating speed of 800-1400 rpm until the materials are completely dissolved and no visible particles exist;
(2) Adding an antipruritic detumescence agent, a bacteriostatic agent and a pH regulator into the mixed liquid, uniformly dispersing for 20-30 minutes at the rotating speed of 600-1000 rpm, and obtaining the fire extinguishing agent after the physical and chemical properties are checked to be qualified, wherein the feed liquid is transparent or semitransparent;
(3) And (3) pouring the prepared fire extinguishing agent into a fire extinguisher, packaging, pressurizing to 0.8Mpa, and installing a special nozzle to obtain the available fire extinguisher.
Example 1
The plant modified flame retardant comprises 250g of a natural milk increasing agent, 30g of a biological-based surfactant, 20g of an antipruritic and detumescent agent, 80g of a bacteriostatic agent, 50g of a pH regulator, 70g of water and 500g of water, wherein the specific plant modified flame retardant, the natural milk increasing agent, the biological-based surfactant, the antipruritic and detumescent agent, the bacteriostatic agent and the pH regulator are shown in table 1.
Example 2
The plant modified flame retardant comprises 175g of natural emulsion 180g, 65g of bio-based surfactant, 5g of itching-relieving detumescence agent, 15g of bacteriostat, 5g of pH regulator and 555g of water, and the specific plant modified flame retardant, natural emulsion, bio-based surfactant, itching-relieving detumescence agent, bacteriostat and pH regulator are shown in table 1.
Example 3
85g of plant modified flame retardant, 20g of natural emulsion, 30g of bio-based surfactant, 40g of itching-relieving and swelling-reducing agent, 30g of bacteriostat, 15g of pH regulator and 780g of water, wherein the specific plant modified flame retardant, the natural emulsion, the bio-based surfactant, the itching-relieving and swelling-reducing agent, the bacteriostat and the pH regulator are shown in table 1.
Example 4
140g of plant modified flame retardant, 55g of natural milk increasing agent, 200g of bio-based surfactant, 55g of itching-relieving and swelling-reducing agent, 35g of bacteriostat, 15g of pH regulator and 500g of water, wherein the specific plant modified flame retardant, the natural milk increasing agent, the bio-based surfactant, the itching-relieving and swelling-reducing agent, the bacteriostat and the pH regulator are shown in table 1.
Example 5
95g of plant modified flame retardant, 10g of natural emulsion, 30g of bio-based surfactant, 25g of itching-relieving and swelling-reducing agent, 10g of bacteriostat, 5g of pH regulator and 825g of water, wherein the specific plant modified flame retardant, the natural emulsion, the bio-based surfactant, the itching-relieving and swelling-reducing agent, the bacteriostat and the pH regulator are shown in table 1.
Example 6
20g of plant modified flame retardant, 5g of natural milk increasing agent, 5g of bio-based surfactant, 5g of itching relieving and swelling reducing agent, 5g of bacteriostat, 10g of pH regulator and 950g of water, and the specific plant modified flame retardant, natural milk increasing agent, bio-based surfactant, itching relieving and swelling reducing agent, bacteriostat and pH regulator are shown in table 1.
Example 7
85g of plant modified flame retardant, 25g of natural emulsion, 25g of bio-based surfactant, 30g of itching-relieving and swelling-reducing agent, 30g of bacteriostat, 10g of pH regulator and 795g of water, wherein the specific plant modified flame retardant, the natural emulsion, the bio-based surfactant, the itching-relieving and swelling-reducing agent, the bacteriostat and the pH regulator are shown in table 1.
Example 8
115g of plant modified flame retardant, 10g of natural milk increasing, 20g of bio-based surfactant, 2g of itching relieving and swelling eliminating agent, 10g of bacteriostat, 1g of pH regulator and 842g of water, wherein the specific plant modified flame retardant, the natural milk increasing agent, the bio-based surfactant, the itching relieving and swelling eliminating agent, the bacteriostat and the pH regulator are shown in the table 1.
Comparative example 1
The plant modified flame retardant comprises 250g of the itching-relieving detumescence agent, 80g of the bacteriostatic agent, 50g of the pH regulator, 70g of the water and 550g of the specific plant modified flame retardant, the itching-relieving detumescence agent, the bacteriostatic agent and the pH regulator are shown in the table 1.
Comparative example 2
The plant modified flame retardant comprises 250g of natural emulsion increasing agent, 30g of itching relieving and swelling eliminating agent, 80g of bacteriostat, 50g of pH regulator, 520g of water, and the specific plant modified flame retardant, natural emulsion increasing agent, itching relieving and swelling eliminating agent, bacteriostat and pH regulator are shown in table 1.
Comparative example 3
The plant modified flame retardant comprises 250g of plant modified flame retardant, 20g of bio-based surfactant, 80g of itching-relieving detumescence agent, 50g of bacteriostat, 70g of pH regulator, 530g of water, and the specific plant modified flame retardant, bio-based surfactant, itching-relieving detumescence agent, bacteriostat and pH regulator are shown in table 1.
Comparative example 4
The plant modified flame retardant 175g, the itching-relieving detumescence agent 5g, the bacteriostat 15g, the pH regulator 5g, the water 800g, and the specific plant modified flame retardant, the itching-relieving detumescence agent, the bacteriostat and the pH regulator are shown in Table 1.
Comparative example 5
The plant modified flame retardant 175g, the natural emulsion 180g, the antipruritic and detumescent agent 5g, the bacteriostat 15g, the pH regulator 5g, the water 620g, the specific plant modified flame retardant, the natural emulsion, the antipruritic and detumescent agent, the bacteriostat and the pH regulator are shown in the table 1.
Comparative example 6
The plant modified flame retardant 175g, the bio-based surfactant 65g, the itching relieving and swelling eliminating agent 5g, the bacteriostat 15g, the pH regulator 5g and the water 735g, and the specific plant modified flame retardant, the bio-based surfactant, the itching relieving and swelling eliminating agent, the bacteriostat and the pH regulator are shown in the table 1.
TABLE 1
The performance of the extinguishing agents prepared in examples 1-8 and comparative examples 1-6 was measured as follows:
fire extinguishing and penetration test: the human body model is sleeved with 5 layers of working clothes, 1.5L of gasoline is uniformly sprayed on the outermost working clothes, then the gasoline is ignited, the pre-combustion is carried out for 10s, then a test person holds 500ml of fire extinguisher to conduct fire extinguishing operation, the fire extinguishing time is recorded in the fire extinguishing process, and the number of penetration layers of the open fire extinguishing agent is checked after the fire extinguishing is finished.
The results of the performance tests of the fire extinguishing agents prepared in examples 1 to 8 and comparative examples 1 to 6 are shown in Table 2.
TABLE 2
As can be seen from table 2, the fire extinguishing time of the fire extinguishing agents of examples 1 to 8 can be controlled within "gold one minute", the number of penetration layers is 3 layers or more, the data of comparative examples 1 and 1 to 3, the data of comparative examples 2 and 4 to 6 indicate that the fire extinguishing time of the fire extinguishing agent containing the natural emulsion is shorter because the natural emulsion and the plant modified flame retardant cooperate with each other to form a dense barrier layer for blocking external oxygen, thereby shortening the fire extinguishing time, and the penetration ability of the fire extinguishing agent containing the bio-based surfactant is stronger because the bio-based surfactant reduces the surface tension of the aqueous agent, which is favorable for penetration of the aqueous agent into the combustible and at the slit. Therefore, the fire extinguishing agent can greatly improve the fire extinguishing efficiency and permeability of water mist, and can be used as a good fire-fighting self-rescue fire extinguishing agent.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (6)
1. The fire extinguishing agent is characterized by comprising a plant modified flame retardant, a natural emulsion-increasing agent, a bio-based surfactant, an antipruritic and detumescent agent, a bacteriostatic agent, a pH regulator and water;
based on the mass percentage of the fire extinguishing agent, the plant modified flame retardant accounts for 2-25%, the natural emulsion is 0.5-18%, the bio-based surfactant is 0.5-20%, the itching-relieving detumescence agent is 0.2-8%, the bacteriostat is 0.02-5%, the pH regulator is 0.1-7%, and the water is 50-95%;
the plant-modified flame retardant comprises at least one of sulfonated cellulose and phytic acid;
the natural emulsion comprises at least one of lecithin and lanolin;
the bio-based surfactant comprises at least one of rhamnolipids, sophorolipids and trehalose lipids;
the antipruritic and detumescent agent comprises at least one of allantoin, panthenol and peppermint;
the bacteriostatic agent comprises at least one of potassium sorbate, sorbic acid and chlorobutanol;
the pH adjustor comprises at least one of citric acid, fumaric acid, and succinic acid.
2. A method for preparing the fire extinguishing agent of claim 1, characterized in that the plant modified flame retardant, the natural emulsion-increasing agent, the bio-based surfactant, the antipruritic and detumescent agent, the bacteriostatic agent, the pH adjusting agent and water are mixed and stirred to obtain the fire extinguishing agent.
3. The method according to claim 2, characterized in that it comprises in particular the following steps:
(1) Mixing and stirring water, a plant modified flame retardant, a bio-based surfactant and a natural emulsion increasing agent until the water, the plant modified flame retardant, the bio-based surfactant and the natural emulsion increasing agent are completely dissolved so as to obtain a main mixture;
(2) Mixing and stirring the antipruritic detumescence agent, the bacteriostatic agent, the pH regulator and the main mixture to obtain the fire extinguishing agent.
4. A method according to claim 3, wherein in step (1) the stirring speed is 800 to 1400 rpm.
5. A method according to claim 3, wherein in step (2), the stirring speed is 600 to 1000 rpm and the time is 20 to 30 minutes.
6. A fire extinguisher, characterized in that the fire extinguishing agent according to claim 1 or the fire extinguishing agent prepared by the method according to any one of claims 2 to 5 is used.
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