KR102143060B1 - Environment-friendly multipurpose fire-fighting foam composition - Google Patents

Abstract

The present invention provides an environmentally-friendly multipurpose fire extinguishing agent composition. According to the present invention, a foam fire extinguishing agent of the present invention, which comprises: at least one from alkyl polyglucoside and alkyl monoglucoside as a foaming agent for forming foam; and at least one from alkyl betaine, imidazolium betaine, and cocoamphocarboxyglycinate. Accordingly, the multipurpose fire extinguishing agent composition provides a high expansion ratio, high foam stability, low corrosive properties, and excellent fire extinguishing ability, has high biodegradability and low ecotoxicity to be environmentally-friendly, and is also used for compressed air foam fire extinguishing system (CAFS) which has excellent performance in an alcohol fire as well as a general fire (Class A fire) and an oil fire (Class B fire).

Description

Environment-friendly multipurpose fire-fighting foam composition}

The present invention is an environmentally friendly fire extinguishing agent that can be used in a compressed air bubble extinguishing system (CAFS) and a general blowing extinguishing device, fire fighting equipment and equipment, and can be used in general fires, oil fires as well as alcohol fires. It relates to a fire extinguishing agent composition that exhibits excellent extinguishing performance in general fires (Class A fires), oil fires (Class B fires), and alcohol fires with only a small amount of 1% to 6% of fire extinguishing agents.

The present invention is a fire extinguishing agent that can be used in general fires (Class A fires), oil fires (Class B fires) as well as alcoholic fires. With only a small amount of fire extinguishing agents of 1% to 6% of the low viscosity of less than 500cp without perfluorinated compounds It relates to a fire extinguishing agent composition that exhibits excellent extinguishing performance in general fires (Class A fires), oil fires (Class B fires) and alcohol fires, and can also be used in extinguishing facilities and compressed air extinguishing systems (CAFS).

Liquid-based extinguishing agents are classified into infiltrating extinguishing agents, foaming extinguishing agents, and strengthening liquid extinguishing agents. Infiltrating extinguishing agent is a fire extinguishing agent composition for suppressing general fires or oil fires by lowering the surface tension of water to a certain level or lower than water with superior penetration and adhesion, emulsification, cooling, and containment. Compounds or other halogen substances are used.

Foaming explosives are those that disperse gas in a small amount of liquid, and are largely divided into two types: chemical foam (chemical foam) and mechanical foam (mechanical foam) according to the method of dispersing the gas. In general, gas is generated by chemical reaction. If air is used as a chemical foam or gas, it is called a mechanical foam or air foam (air foam).The operating principle of the air foam is to send a foaming diluent obtained by dissolving a small amount of foaming explosive in a large amount of water and sending it to a foamer. Air is mixed in a method to generate bubbles, which are called mechanical or air bubbles. The resulting foam is an assembly of light and strong fine air bubbles that cools the combustion products with the moisture in the air bubbles and covers the surface of the fire with a foam layer to prevent mixing of the vapors and oxygen generated from the combustibles, thereby suffocating the effect of suffocating. Get In this way, the fire extinguishing principle of foaming explosives extinguishes the fire by the cooling effect, suffocation effect, and containment effect. Here, the mechanical foaming agent is classified into a protein foaming agent, an aqueous film foaming agent, an alcohol foaming agent, a surfactant foaming agent, or a high foaming agent, depending on the ingredients and properties of the raw material.

Aqueous film foaming extinguishing agents are mainly effective for fires of non-aqueous liquids (gasoline, kerosene, diesel, etc.), which are Class B fires (oil fires). It is a fire extinguishing agent that double-blocks with air bubbles and aqueous membrane to suppress digestion. In order to form such a fast fluidity and an aqueous film, a fluorine-based surfactant is used.

The alcohol extinguishing agent is a extinguishing agent used in the fire of water-soluble liquids, and is useful in the fire of flammable water-soluble liquids such as alcohols, ethers, ketones, esters, aldehydes, carboxylic acids and amines.

Alcohol extinguishing explosives extinguish fires by covering and film effects on water-soluble alcohols combustion materials when extinguishing fires, and sometimes extinguishing oil fires. However, for the covering effect of such bubbles, a composition of a fire extinguishing agent made of a perfluorinated compound and a high viscosity material is required, and there is a disadvantage that the speed of digestion and suppression of oil fires is slow compared to the water-based film foaming agent.

Synthetic surfactant foam fire extinguishing agent is used for general fires and oil fires with good fluidity and fast digestion speed, which does not have strong fire power and does not have the risk of breaking the cloth. It is a foaming agent that can be used for low or high foaming. It is mainly used for underground fires, tunnel fires, gas leaking fires, etc., where human access is difficult, and it is used to suppress oil fires with its low foaming function.

However, for chemical resistance and heat resistance, conventional surfactants are mixed with fluorine surfactants or halogens with alkylnaphthalene sulfonate, alkylbenzene sulfonate, alkyl sulfate sulfate, alkyl sulfate ether sulfate, alkyl sulfate sulfonate, etc. Polyoxyethylene alkyl ether nonionic surfactant was used as a reinforcing agent or as a foaming aid, and in particular, NP (Nonyl Phenol)-based surfactants have been used.

The fire extinguishing agents prepared by the above method contain perfluorinated compounds including fluorine-based surfactants for heat resistance, chemical resistance, alcohol resistance, and the like. In the case of fluorine-based, persistent organic compounds (PFOS/PFOA) regulations were regulated as tentative carcinogens under the Stockholm Convention in May 2009, and there is a non-environmental problem as the regulations have been applied since April 2011 in Korea. In addition, alkyl naphthalene sulfonate, alkyl benzene sulfonic acid, and alkyl benzene sulfonate salts, which are highly corrosive and have very poor biodegradability when exposed to rivers, have been used indiscriminately for digestion performance.However, when used, drugs for suppression agents or targets. Additional damage due to contact and penetration, secondary damage to objects, and exposure to rivers and the environment can lead to ecosystem destruction or harm, and their use is gradually decreasing.

Looking at the prior art related to the environmentally friendly synthetic surfactant foaming explosives, Korean Patent Laid-Open Publication No. 10-2011-0043827 uses an alkyl betaine surfactant as the main component, and uses a mixture of cellulose and polyamide as a foam stabilizer, and an antifreeze agent is added. A method of manufacturing an eco-friendly synthetic surfactant fabric extinguishing agent prepared by using the method is described.

However, in order to achieve eco-friendliness, using betaine surfactants as a foaming agent and foaming aid, the foaming ratio is low in order to realize a high foaming ratio, which is an important feature of synthetic surfactant foaming agents. .

Also, it is posted that it is useful for extinguishing oil fires (Class B fires), but when applied to fires of water-soluble liquids such as alcohols that have affinity with water, the water-soluble liquid deodorizes the water in the air bubbles and destroys the air bubbles. There is a problem that is difficult to apply to.

Accordingly, the present invention has been proposed to solve the above problems, and the present invention provides an eco-friendly fire extinguishing agent composition that does not contain harmful heavy metals such as fluorine-based surfactants, halogens, phenols, lead and cadmium to preserve the environment and use It is an object to provide a liquid-based fire extinguishing agent composition that can prevent the destruction of the ecosystem from drugs.

This can be applied to alcoholic fires as well as general fires (A class fires) and oil fires (B class fires) by using a compressed air bubble fire extinguishing system (CAFS), general fire extinguishing devices, fire extinguishing equipment and equipment. It is an object of the present invention to provide an environmentally friendly fire extinguishing agent composition while having excellent fire extinguishing performance that can be designed and controlled from 1% to 6%.

In addition, as a foaming agent and/or a foaming aid, the biodegradability is increased by using all or part of the surfactant of alkyl polyglucoside or alkyl monoglucoside, which is a nonionic surfactant with high biodegradability and very little impact on the human body or the environment. As foaming aids, general fires (class A fires) and oil fires using alkyl betaines such as propyl betaine and lauryl betaine, imidazolium betaine, or cocoampocarboxyglycitate as foaming aids. It aims to provide an eco-friendly fire extinguishing agent composition with excellent foaming ratio, good foam stability, low surface tension and excellent extinguishing performance in various fires that can be used in (Class B fire) as well as alcoholic fires.

The present invention for achieving the above object is a foaming agent composition comprising a foaming agent for foaming and an additive, and the foaming agent composition containing at least one of alkyl polyglucoside and alkyl monoglucoside as the foaming agent. to provide. The alkyl of the alkyl polyglucoside and the alkyl monoglucoside may have 6 to 16 carbon atoms. The alkyl polyglucoside may have a degree of polymerization in the range of 1.2 to 1.7. The alkyl polyglucoside and the alkyl monoglucoside may be included in the range of 5% to 60% by weight, particularly 10% to 60% by weight of the total composition.

In addition, as the foaming agent and/or foaming aid, at least one anionic surfactant selected from the group consisting of lactic acid ester salt, carboxylic acid salt, sulfonic acid salt, phosphate ester salt, amino acid ester salt, and citric acid ester salt is 5 It may be included in% by weight to 50% by weight.

In addition, a foaming aid may be included as the foaming agent and/or foaming aid, and the foaming aids may be amphoteric surfactants such as alkyl betaine, imidazolinium betaine, cocoampocarboxyglycinate (disodium cocoampodi Acetate) and the like may be included in 5% to 50% by weight of the total composition.

In addition, as a quality improver, at least one selected from the group consisting of hydroxyethylcellulose, sodium carboxylmethylcellulose, polyvinyl alcohol, starch, fructose, dextran, polysaccharides, and alcohols is selected as a quality improving agent. Compared to 0.1% to 10% by weight may be included.

In addition, as a foaming enhancer, hexylene glycol, triethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, dipropylene glycol monomethyl ether At least one foaming enhancer selected from the group consisting of may include 0.1% to 10% by weight of the total composition.

In addition, it provides a foaming agent composition comprising 0 to 25% by weight of a freezing point lowering agent selected from the group consisting of ethylene glycol, polyethylene glycol, propylene glycol, and polypropylene glycol as the freezing point lowering agent. .

Compressed air bubble fire extinguishing system (CAFS) according to the present invention, an eco-friendly multi-purpose fire extinguishing agent composition that can be used for general fire extinguishing devices, fire fighting equipment and equipment is “Act on Fire Protection Installation and Maintenance and Safety Management,” Article 36, Paragraph 5 “ It has excellent fire extinguishing ability suitable for “technical standards for type approval of fire extinguishing agent and product inspection”.

In addition, it is eco-friendly because it does not use fluorine-based surfactants, halogens, phenols, heavy metals, etc., which are pointed out as harmful substances by the Ministry of Environment.

In addition, it has excellent extinguishing performance and various applicability applicable to alcoholic fires as well as general fires (A class fires) and oil fires (B class fires), so it can efficiently and effectively perform extinguishing and extinguishing suitable for various fires at the actual fire site. In addition, there is an effect of remarkably reducing the secondary damage caused by the drug after digestion and suppression, and the cost of contamination and disposal of the aqueous solution of the extinguishing agent after use.

Hereinafter, the present invention will be described in detail with reference to Examples. The following description is for explaining the present invention in detail, and the present invention is not limited thereto even if there are specific and restrictive expressions.

In the present specification, "A to B" indicating a range means a range of A or more and B or less.

A fire extinguishing agent composition according to an embodiment of the present invention comprises a foaming agent for lowering surface tension and foaming, a foam stabilizer, and an additive, and the foaming agent is at least one of alkyl polyglucoside and alkyl monoglucoside. It characterized in that more than one is included. On the other hand, the fire extinguishing agent composition according to an embodiment of the present invention is an eco-friendly composition that does not contain a fluorine-based surfactant, a nonylphenol-based surfactant, and harmful heavy metals.

The foaming agent may be composed of only alkyl polyglucoside and alkyl monoglucoside, or may be used together with other foaming agents. The foaming agent that can be used together is not limited, and examples include anionic surfactants. When two or more types of foaming agents are used, both may be referred to as foaming agents, and either may be referred to as foaming aids. In this specification, the terms of the foaming agent and the foaming aid will be used without distinction.

In an embodiment of the present invention, the amount of alkyl polyglucoside or/and alkyl monoglucoside surfactant used as a foaming agent or foaming aid is used in an amount of 5% by weight or more and 60% by weight or less, and more effectively 10 It can be used in an amount of not less than 60% by weight. If used within the above range, it hardly affects the performance and eco-friendliness of the fire extinguishing agent (foaming agent and infiltrating fire extinguishing agent), and if it exceeds the above range, the increase in the practical effect in the performance and environment-friendliness of the fire extinguishing agent is insignificant and economical. Low use value.

In addition, the alkyl group of the alkyl glucoside may be an alkyl monoglucoside or an alkyl polyglucoside having 4 to 24 carbon atoms, preferably 6 to 16 carbon atoms. Preferably, the alkyl having 12 or more and 14 or less carbon atoms, 8 or more and 10 or less carbon atoms, or 10 or more and 12 or less carbon atoms may be used alone or in combination.

In the case of the alkyl polyglucoside, the degree of polymerization is not limited, but it is preferably 1.1 or more and 1.9 or less, and particularly preferably 1.2 or more and 1.7 or less. When the degree of polymerization is less than 1.2, the hydrophilicity is too high, and when the degree of polymerization is more than 1.7, the hydrophobicity is too high, and compatibility as a surfactant is not appropriate.

As an example of the alkyl polyglucoside, there may be mentioned lauryl polyglucoside sold under the name of Plantacare 2000 or Plantaren 2000 or Plantaren 1200 by Cognis, and GLUCOPON 600 (RTM ex HENKEL) may be mentioned.

As a foaming agent that can be used with alkyl polyglucoside or alkyl monoglucoside, anionic surfactants composed of lactic acid ester salt, carboxylic acid salt, sulfonate salt, phosphate ester salt, amino acid ester salt, citric acid ester salt, etc. can be used alone or in combination. have. The amount used is not limited, but 5% by weight or more and 55% by weight or less may be used, and more effectively, 10% by weight or more and 50% by weight or less may be used. When using less than the above range, it is difficult to obtain the effectiveness and economic efficiency, and when exceeding the above range, it is difficult to realize fire extinguishing performance or eco-friendliness.

When anionic surfactant is used together, the mixing ratio of the alkylpoly(mono)glucoside and anionic surfactant is preferably in the range of 1:10 to 10:1 by weight.

As an additive, the following components may be included. The additive can be an important factor for the fire extinguishing agent composition to exhibit excellent high and low foaming ratio, penetrability, penetrability, and excellent digestion ability.

The foaming aid may be used for the purpose of improving the function of the foaming agent, and as an example, an amphoteric surfactant may be used, and an alkyl betaine surfactant, an imidazolinium betaine surfactant, or a cocoampocarboxyglycinate ( Disodium cocoamphodiacetate) or the like may be used alone or in combination.

As a foaming aid, the amount of the amphoteric surfactant may be 5% to 50% by weight relative to the total composition, and more effectively 10% to 40% by weight may be used to further improve physical properties and environmental friendliness. On the other hand, when the amount of the amphoteric surfactant exceeds 50% by weight, it is difficult to obtain its effectiveness compared to the amount used.

In addition, when cocoampocarboxyglycinate (disodium cocoamphodiacetate) is mixed with other amphoteric surfactants, 1% to 20% by weight of the total composition may be used, and more effectively 5% by weight or more 10 Less than or equal to weight can be used. When using less than the above range, it is difficult to obtain the effectiveness and economic efficiency, and when exceeding the above range, it is difficult to realize fire extinguishing performance or eco-friendliness. Specifically, in the case of using the cocoampocarboxycinate (disodium cocoamphodiacetate), it is particularly useful in extinguishing alcoholic fires as well as general fires (A class fires) and oil fires (B class fires). As shown in Table 8 below, it was confirmed that alcohol fire extinguishing performance was excellent when cocoamphocarboxycinate (disodium cocoamphodiacetate) was used alone or in combination than when only alkyl betaine surfactant, one of the betaines, was used. I can. This is because cocoampocarboxycinate (disodium cocoamphodiacetate) is a surfactant obtained from fatty acids in coconut oil, and is composed of naturally derived ingredients produced based on fatty acids. It can be strengthened to prevent the disappearance of air bubbles.

Specifically, when the conventional synthetic surfactant foaming agent is applied to a fire of a water-soluble liquid such as alcohol, which has affinity with water, the water-soluble liquid deodorizes the water in the air bubbles, destroying the air bubbles. Eventually, the water-soluble liquid destroys the organic substances forming the air bubbles. It coagulates and the digestive power is lost. Therefore, to prevent this phenomenon, it is preferable to use a highly viscous cocoamphocarboxycinate (disodium cocoamphodiacetate) amphoteric surfactant to form bubbles that can prevent the substitution between water and water-soluble liquid. Do. In addition, cocoampocarboxycinate, an amphoteric surfactant, shows a large difference in the input effect depending on the dosage, so that if it is out of the appropriate range, the addition effect hardly appears, rather it becomes more difficult to disperse, and forms a complex with other additives. Therefore, it is most important to find an appropriate range. Therefore, if cocoampocarboxyglycinate is used alone as an amphoteric surfactant, it is advantageous in suppressing alcohol fires, but there is a problem that the suppression efficiency of class A and B fires is relatively lowered due to high viscosity. For effective application of both Class B fires and alcohol fires, lauryl betaine or imidazolinium betaine and cocoampocarboxycinate (disodium cocoamphodiacetate) are mixed in a ratio of 3: 1 to 1: 3 and used. It is preferable to do, and more preferably, it is used by mixing in a 1:1 ratio. If the ratio is higher than 3:1, the efficiency of applying alcohol fire is lowered, and if the ratio is higher than 1:3, the application efficiency of Class A or Class B fire is lowered.

The foaming enhancer is for sustaining or improving foaming, and although not limited, glycol ethers may be used. As an example, hexylene glycol, triethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, etc. may be used. It may be, and 5% to 30% by weight may be used, and more effectively 10% to 25% by weight may be used. If it is less than the above range, the effect is insignificant, and if it exceeds the above range, the overall solubility or physical properties may be affected, and even if a sufficient amount is used, the foaming performance as expected may not appear. In addition, when exceeding the above range, the flammability may increase.

As the quality improving agent, polymers such as hydroxyethylcellulose, sodium carboxylmethylcellulose, polyvinyl alcohol, etc., which were previously used as thickeners, foam stabilizers and modifiers, are used, or other known polymers, starch, fructose, Textline, polysaccharides, alcohols, etc. can be used. The quality improving agent plays a role of stabilizing the bubbles, and is intended to increase the stability of the bubbles by increasing the moisture content (moisturizing power) in the generated bubbles, and the bubble stabilizer is not particularly limited as long as it has the above functions. However, it is good if it can prevent moisture penetration by forming a polymer film to stabilize air bubbles. The polymer film forming agent may be selected from gums, which are a kind of heteropolysaccharides. As such gums, for example, xanthan gum, karakinan gum, gum arabic, gum tragacanth, gum karaya, locust bean gum, xanthan gum, guar gum, and the like can be used. Since gums combine with water to form viscous solutions or gels, they can increase the viscosity of foaming agents too high, making them subject to restrictions on use. Therefore, in a preferred embodiment, it is preferable to use at least one selected from alginic acid and dextran. Alginic acid is a polysaccharide that exists as a constituent of brown algae cell membranes such as seaweed or kelp, and most of them have a linear molecular structure in which D-mannuronic acid is linked by β-1,4 bonds. This alginic acid is advantageous for forming a polymer film, that is, preventing moisture penetration, and it is also very effective in maintaining a low viscosity of the foaming agent. The dextran is a glucan having typical properties of a hydrophilic colloid, which is easily soluble in water. Dextran is mainly used as a plasma capacity increase agent, and in the food field, it is used in the manufacture of sugar syrup or ice cream. Even in the case of such dextran, it is very effective in forming a polymer film and maintaining a low viscosity. Specifically, the alginic acid and dextran have excellent performance as a polymer film forming agent due to the stability of bubbles and maintaining a homogeneous phase, which is particularly effective in maintaining the low viscosity of foaming agents compared to gums.

In addition, in the case of alcohol use as a fire, it is preferable to use a mixture of gums, a kind of heteropolysaccharides, rather than using alginic acid or dextran alone. In particular, gums, alginic acid and dex It is more preferable to mix and use tran in a ratio of 1:3:3. This means that when only using alginic acid (140 cSt or less) and dextran (140 cSt or less) having low viscosity characteristics, when mixing gums such as xanthan gum (4500 cSt or less), the overall viscosity increases and a high viscosity polymer film is formed. Therefore, the phenomenon that water-soluble liquids such as alcohol deodorize water in the air bubbles and destroy the air bubbles can be suppressed by the polymer membrane with improved viscosity, so that it can be effectively applied to fire extinguishing alcohols.

The content of the quality improving agent is not limited, but may be used in an amount of 0.1% to 10% by weight (alone or in combination). If it exceeds the above range, it may give a change in the overall physical properties or cause a failure of foaming.

The freezing point lowering agent may be used for the purpose of lowering the freezing point, and glycols may be used as an example. Although not limited, examples of glycols include ethylene glycol, propylene glycol, and the like, and may be used in an amount of 0 to 25% by weight according to the use temperature and characteristics. When the amount exceeds 25% by weight, a change in physical properties or an increase in flammability may occur.

In addition, 0.5% to 5% by weight of ethylenediaminetetraacetate sodium, tripolyphosphate, etc. are used as seawater and rust inhibitors and foam enhancers, and citric acid, tartaric acid, gluconic acid, lactic acid, acetic acid, sulfuric acid, sodium hydroxide, amines as pH adjusters The pH can be adjusted in the range of 7.0 to 7.8 by using one or more lamps. In addition, EDTA may be further included as a water softener, and a solvent such as water may be further included.

The foaming agent composition according to an embodiment of the present invention having the above constitutive characteristics is biodegradability (KS M ISO 7827/KS M ISO 9439), ecotoxicity LC50 (96hr), phenol, as shown in the examples to be described later. And realization of an eco-friendly synthetic surfactant foaming extinguishing agent that features no addition of heavy metals and no addition of halogens such as fluorine and bromine, and has a foaming and extinguishing performance of 500 times or more high foaming ratio and low foaming ratio (patent registration 10-1366308 ), as well as general fires (class A fires) as infiltration extinguishing agents. It can be applied to oil fires (Class B fires) and alcohol foaming explosives capable of suppressing alcoholic fires, and it relates to products applicable to compressed air foaming equipment (CAFS), general foaming equipment, and fire fighting equipment and equipment.

Hereinafter, examples and comparative examples of the present invention are illustrated. The following examples and comparative examples are merely illustrative of the present invention, and the contents of the present invention are not limited to the following examples.

<Example 1>

20 parts by weight of alkyl polyglucoside consisting of alkyl groups C12 to 14 as a foaming agent, 24 parts by weight of TEA lauryl edel sulfate as an anionic surfactant, 10 parts by weight of lauryl betaine as an amphoteric surfactant as a foaming aid, and cocoampocarboxyglycinate 10 parts by weight and 20 parts by weight of hexylene glycol as a foaming improver, 2 parts by weight of xanthan gum as a quality improver, 2 parts by weight of alginic acid, 1 part by weight of dextrin and propylene glycol as a freezing point depressant, and ethylenediaminetetraacetate disodium as a foam improver as other additives 3 parts by weight and 4 parts by weight of water were mixed to prepare a foaming agent composition. Specific components and contents (unit: parts by weight) of the foaming agent composition according to Example 1 are shown in Table 1 below.

<Examples 2 to 7>

In contrast to Example 1, the ingredients and contents of the foaming agent composition were different. Specific components and contents of the foaming agent composition according to each of Examples 1 to 7 are shown in Table 1 below.

<Comparative Examples 1 to 4>

In contrast to Example 1, the ingredients and contents of the foaming agent composition were different. Specific components and contents of the foaming agent composition according to each of Comparative Examples 1 to 4 are shown in Table 1 below.

division Example Comparative example One 2 3 4 5 6 7 One 2 3 4 Foaming agent

or

Bubble aid Alkyl polyglucoside C6~C16 20 20 20 20 20 20 20 30 30 20 20 Negative ions
Surfactants TEA Lauryl Edensulfate 24 24 24 24 24 24 24 34 34 24 24 Foaming aid Amphoteric
Surfactants Lauryl betaine 10 15 5 10 - 10 10 - 10 10 10 Imidazolium betaine - - - 10 - - - - - - - Cocoamphocarboxiglycinate 10 5 15 - 20 10 10 - 10 10 10 Foaming enhancer Hexylene glycol 20 20 20 20 20 20 20 20 - 20 20 Quality improver Bubble stabilizer Xanthan gum 0.4 0.4 0.4 0.4 0.4 - - 1.2 1.2 - 1.2 Alginic acid - - - - - 2.8 - - - - - Dextran 2.4 2.4 2.4 2.4 2.4 - 2.8 - - - - Freezing point depressant Propylene glycol 5 5 5 5 5 5 5 5 5 5 5 Etc Gipohang Xiangje Ethylenediamine tetraacetate disodium One One One One One One One One One One - Softener EDTA - - - - - - - - - - One water 7.2 7.2 7.2 7.2 7.2 7.2 7.2 8.8 8.8 10 8.8

In order to analyze the performance of the foaming explosives composition of Examples 1 to 7 and Comparative Examples 1 to 4, "Fire Fighting Facility Installation and Maintenance and Safety Management Act" Article 36, Clause 5 "Technology of Fire Extinguishing Agent Type Approval and Product Inspection The foaming test fire extinguishing performance was measured based on the “standard”, and the core technical matters of the present invention were low foaming test, high foaming test, general fire (class A fire) test, oil fire (class B fire) test, alcohol fire test, etc. The standard foaming device and fire extinguishing test model device for this purpose are various foaming devices in the drawings suggested in Article 36, Paragraph 5 of the "Fire Protection Installation, Maintenance and Safety Management Act", "Technical Standards for Type Approval and Product Inspection" And fire extinguishing test models were used. Experiments for infiltrating fire extinguishing agents and surface tension measurement were also in accordance with Article 36, Paragraph 5 of the “Fire Protection Installation and Maintenance and Safety Management Act”, “Technical Standards for Type Approval and Product Inspection”. It was applied as a standard, and the foaming performance conditions are shown in Table 2.

[Experimental Example 1] Foaming magnification and stability test

In the case of the foaming performance test, it is divided into a foaming ratio measurement and a stability measurement. Here, the stability measurement refers to the measurement of 25% reduction time, which refers to the time it takes for 25% of the collected fabric to be reduced to the original fabric diluent, and the expansion rate is measured twice by the following equation (1). It is analyzed by arithmetic average, and the reduction time measurement refers to the time it takes for 25% of the weight of the fabric to be reduced by collecting the fabric in a 200 liter collecting container.

In the analysis of foaming performance, the foaming power and reduction time were measured under the same conditions, respectively, in order to compare with the synthetic surfactant foaming agent developed previously.

Q: The amount of release per minute of the foaming machine (L)

S: Bubble collection period (seconds)

V: Volume of the gold net container (L)

Low foaming performance

V: Inner volume of collection container (ml)

W: Total weight when the collection container is filled with bubbles (g)

W1: Weight of the collecting container (g)

division Magnification 25% reduction time Low foaming 6 times or more 1 minute or more High foaming 500 times or more More than 3 minutes

The following [Table 3] and [Table 4] evaluate the expansion ratio and stability in each of high foaming and low foaming for Examples 1 to 7 and Comparative Examples 1 to 4.

division Technical standards Example One 2 3 4 5 6 7 Foaming magnification High foaming 500 times or more 650 times 640 times 645 times 635 times 628 times 652 times 653 times Low foaming 6 times or more 9.57 times 9.59 times 9.51 times 10.00 times 9.29 times 9.68 times 9.68 times Stability High foaming More than 3 minutes 13 minute, 30 seconds 13 minute, 10 seconds 13 minute, 25 seconds 14 minute, 10 seconds 14 minute, 15 seconds 13 minute, 12 seconds 13 minute, 08 seconds Low foaming 1 minute or more 9 minute, 34 seconds 9 minute, 17 seconds 9 minute, 41 seconds 9 minute, 54 seconds 10 minutes 3 seconds 9 minute, 10 seconds 9 minute, 15 seconds

division Technical standards Comparative example One 2 3 4 Foaming magnification High foaming 500 times or more 590 times 612 times 625 times 608 times Low foaming 6 times or more 8.25 times 8.31 times 9.12 times 8.47 times Stability High foaming More than 3 minutes 12 minute, 29 seconds 12 minute, 22 seconds 11 minute, 54 seconds 12 minute, 40 seconds Low foaming 1 minute or more 9 minute, 12 seconds 9 minute, 10 seconds 8 minute, 27 seconds 9 minute, 2 seconds

As shown in [Table 3] and [Table 4], when comparing Examples 1 to 7 and Comparative Examples 1 to 4, it is more amphoteric than when the amphoteric surfactant, which is a foaming aid, is not added (Comparative Example 1). It was found that when surfactant was added (Examples 1 to 7) was excellent in all items.

In addition, when a foaming enhancer is not added (Comparative Example 2), a foam stabilizer is not added (Comparative Example 3), or a water softener is added in place of the foam improver as other additives (Comparative Example 4), the foaming enhancer As compared to Examples 1 to 7 in which the foam stabilizer and the foam enhancer were all added, it was confirmed that the performance decreased in all items.

That is, Examples 1 to 7 of the present invention have a high foaming ratio of 600 times or more and excellent high foaming stability, far exceeding 500 times, which is a high foaming requirement standard in the high foaming performance test, which is the core of the experiment. It was confirmed that it was excellent in terms of foam expansion ratio and stability.

[Experimental Example 2] A-class, B-class fire extinguishing performance test

The fire extinguishing performance test is divided into Class B fire (high foaming, low foaming) and Class A fire (high foaming) fire extinguishing performance tests.Each fire extinguishing performance test is the type approval and type approval of extinguishing explosives proposed by the Korea Institute of Fire Industry and Technology. According to the following Table 5, which is the qualification test standard (KOFEIS 0103), fire extinguishing performance tests of class A and class B were performed.

Kinds Target fuel quantity Foaming time Extinguishing Time Suitable Conditions Class B low foaming 320L+ water
200L n-heptane 5 minutes Within 5 minutes Class B high foaming Water 128L+
80L n-heptane 2 minutes 30 seconds Within 3 minutes Class A high foaming 90 dry wood 5 minutes Within 5 minutes

The following [Table 6] evaluated the extinguishing performance tests (3% aqueous solution) of Class B fires (high foaming, low foaming) and Class A fires (high foaming) targeting Examples 1 to 7 and Comparative Examples 1 to 4 will be.

division Technical standards Example Comparative example One 2 3 4 5 6 7 One 2 3 4 Class B low foaming Within 5 minutes 1 min
49 seconds 1 min
40 seconds 1 minute 52 seconds 1 min
43 seconds 1 min
58 seconds 1 min
46 seconds 1 min
47 seconds 2 minutes
53 sec 2 minutes
20 seconds 2 minutes
15 seconds 2 minutes
33 seconds Class B high foaming Within 3 minutes 49 seconds 47 seconds 48 seconds 46 seconds 52 seconds 51 seconds 51 seconds 1 min
48 seconds 1 min
35 seconds 1 min
32 seconds 1 min
44 seconds Class A high foaming Within 5 minutes 2 minutes
28 seconds 2 minutes
17 seconds 2 minutes
30 seconds 2 minutes
15 seconds 2 minutes
32 seconds 2 minutes
27 seconds 2 minutes
26 seconds 2 minutes
54 seconds 2 minutes
48 seconds 2 minutes
46 seconds 2 minutes
37 seconds

As shown in [Table 6], when the amphoteric surfactant, which is a foaming aid, is not added (Comparative Example 1), when a foaming enhancer is not added (Comparative Example 2), a bubble stabilizer, which is a quality improving agent, is not added. It was found that the case (Comparative Example 3) or the case where the amphoteric surfactant was added (Examples 1 to 7) was superior to the case (Comparative Example 3) or the case of not adding the bubble enhancer as other additives (Comparative Example 4).

[Experimental Example 3] Alcohol Fire Extinguishing Performance Test

Alcohol fire extinguishing performance test was carried out in accordance with Table 7 below, which is the type approval of foaming explosives proposed by the Korea Institute of Fire Industry and Technology (KOFEIS 0103).

Kinds Po magnification 25% reduction time Target fuel quantity Foaming time Digestion time
Suitable condition Alcohol 6 to 20 times 1 minute or more Water-soluble solvents 8 minutes Within 5 minutes

[Table 8] is an evaluation of the alcohol fire extinguishing performance experiment (3% aqueous solution) for Examples 1 to 7 and Comparative Examples 1 to 4.

division Technical standards Example Comparative example One 2 3 4 5 6 7 One 2 3 4 Alcohol Within 5 minutes 1 min
28 seconds 1 min
53 sec 1 min
22 seconds 3 minutes
40 seconds 4 minutes 26 seconds 1 min
57 seconds 1 min
51 seconds Inability 6 minutes
29 seconds Inability 5 minutes
40 seconds

As shown in [Table 8], when the amphoteric surfactant as a foaming aid was not added (Comparative Example 1), it was confirmed that alcohol fires could not be extinguished.

In addition, when a foaming enhancer is not added (Comparative Example 2), a foam stabilizer is not added as a quality improving agent (Comparative Example 3), or a water softener is added instead of a foaming enhancer as other additives (Comparative Example 4). It was found that Examples 1 to 7 in which all of the improver, the quality improver and the foam improver were included are advantageous in the fire extinguishing performance of alcohols.

Moreover, in the case of mixing lauryl betaine and cocoampocarboxiglycinate among both surfactants (Example 1), compared to the case of using lauryl betaine or cocoampocarboxiglycinate alone (Examples 4 and 5). It was excellent. This is because cocoampocarboxyglycinate has a high viscosity characteristic, and overall viscosity when cocoampocarboxyglycinate is mixed and used than when only laurylbetaine, which has a lower viscosity than cocoampocarboxyglycinate, is used as an amphoteric surfactant. It is advantageous in suppressing alcohol fires because the water-soluble liquid deodorizes the water in the bubbles and can suppress the bubbles from being destroyed. Even in this case, when only cocoampocarboxycinate is used as an amphoteric surfactant, the fire extinguishing ability of alcohols is excellent, but the viscosity becomes excessively high, and as shown in Examples 1 and 2 above, synthesis related to fire extinguishing of Class A and Class B fires. Since it is not suitable for the properties of the surfactant cloth, it is preferable to use a mixture rather than a single use. Moreover, lauryl betaine and cocoampocarboxiglycinate, which are applicable to all class A fires, class B fires, and alcoholic fires, and exhibit the most efficient fire extinguishing ability in all types of fires, within the ratio of 3: 1 to 1: 3 The range is preferable, and more preferably, mixing is performed in a 1:1 ratio.

In addition, when the quality improver (bubble stabilizer) is a solvent for forming a polymer film, when a mixture of gums such as xanthan gum, alginic acid, and dextran (Example 1) is used, only xanthan gum for high viscosity is used (Comparative Example 1, 2, 4) or alginic acid or dextran alone (Examples 6 and 7) compared to alcohol fire extinguishing performance was found to be superior. This is because the overall viscosity increases when a small amount of xanthan gum (4500 cSt or less) is mixed compared to the case of using only alginic acid (140 cSt or less) and dextran (140 cSt or less) having low viscosity characteristics. It was confirmed that when a mixture of gums such as xanthan gum was used, excellent alcohol fire extinguishing performance was shown.

In addition, the following [Table 9] shows Example 1 of the present invention and a synthetic surfactant foam extinguishing agent (3%) and an overseas infiltrating extinguishing agent (1%, F-), which are commercially available domestic type approval products, according to the type of fire. It shows the result of evaluating whether it is digestible.

division division standard Example 1 domestic Overseas products Aqueous membrane Alcohol cannon Synthetic cotton cloth Fire type Class A fire x x o o o o Class B fire o o o o o o Alcohol fire x o x (disabled) o x (disabled) x (disabled) Foaming ability Low foaming o o o o o o High foaming x x o o o x (disabled)

As shown in [Table 9], the water-based membrane foam extinguishing agent has a disadvantage that it is difficult to use when extinguishing alcoholic fires, and it is difficult to use for high foaming that requires a large amount of foam due to its low foaming ability. In addition, alcohol foam fire extinguishing agents can be used for oil and alcohol fires, but only have low foaming ability, and synthetic surfactant foam fire extinguishing agents have excellent foaming ability but cannot be used in alcohol fires. However, the foaming agent according to the present invention can be applied irrespective of all types of fire, and has the advantage of having an integrated performance that can be used in CAFS because it has excellent foaming ability.

[Experimental Example 4] Infiltrating Fire Extinguishing Agent Digestion Performance Test

The extinguishing performance test of infiltrating extinguishing agents was conducted in accordance with Article 36, Clause 5, “Technical Standards for Type Approval and Product Inspection of Fire Extinguishing Agents” of “Act on Installation and Maintenance of Firefighting Facilities and Safety Management”, and the following [Table 10] Exhibits 1 to 7 of the present invention and the results of the extinguishing performance test of infiltrating extinguishing agent for synthetic surfactant foaming extinguishing agent (3%) and overseas infiltrating extinguishing agent (1%, F-) which are commercially approved products will be.

division Example domestic Overseas
product One 2 3 4 5 6 7 Class A fire 1 unit O O O O O O O O O Class B fire 1 unit O O O O O O O X (disabled) X (disabled)

As shown in [Table 10], it was confirmed that Examples 1 to 7 of the present invention met the criteria for 1 unit of Class A fire and 1 unit of Class B fire as infiltrating fire extinguishing agents, and comparative products, domestic and foreign products It was confirmed that the criteria of 1 unit for Class A fires were satisfied, but 1 unit for Class B fires was not.

In addition, the surface tension test was conducted in accordance with Article 36, Paragraph 5 of the “Fire Fighting Facility Installation and Maintenance and Safety Management Act” “Technical Standards for Type Approval and Product Inspection” in relation to meeting the standards for infiltrating extinguishing agents. [Table 11] shows the surface tension test results for Examples 1 to 7 of the present invention.

division Technical standard (20℃) Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Surface tension
(mN/m) 33 or less 21 21.5 20.5 20.5 21 21 20.5

As shown in [Table 11], it can be seen that Examples 1 to 7 of the present invention correspond to the reference range of surface tension.

[Experimental Example 5] Whether or not harmful substances are used

The use of hazardous substances was carried out according to the environmental technology and environmental label certification standards notified in the Technical Standards for Certification of Excellent Quality of Fire Extinguishing Agents in the Administrative Regulations, and the following [Table 12] shows examples 1 to 7 of the present invention. It shows the result of the use of harmful substances.

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Hazardous heavy metals such as pb and Cd not used not used not used not used not used not used not used Biodegradability Fit Fit Fit Fit Fit Fit Fit NP-based surfactant not used not used not used not used not used not used not used Whether to use EG not used not used not used not used not used not used not used Brominated not used not used not used not used not used not used not used PFOS/PFOA not used not used not used not used not used not used not used

As shown in [Table 12], Examples 1 to 7 of the present invention include no addition of harmful heavy metals, biodegradability (KSM ISO 7827/KSM ISO 9439), no addition of halogens such as fluorine and bromine, and no use of NP-based surfactants, It can be confirmed that it has excellent eco-friendliness that does not use EG.

Claims (10)

A foaming agent containing at least one or more of alkyl polyglucoside and alkyl monoglucoside;
Anionic surfactants;
Amphoteric surfactants comprising at least two or more selected from the group consisting of lauryl betaine, imidazolium betaine, and cocoampocarboxylglycinate;
A quality improver comprising at least one selected from the group consisting of hydroxyethylcellulose, sodium carboxylmethylcellulose, polyvinyl alcohol, starch, fructose, dextran, polysaccharides, and alcohols;
At least selected from the group consisting of hexylene glycol, triethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, and dipropylene glycol monomethyl ether A foaming enhancer comprising one or more;
Bubble enhancer containing sodium ethylenediamine tetraacetate or tripolyphosphate; And
Containing a freezing point depressant,
The content of the amphoteric surfactant is 20% to 50% by weight based on the total composition,
Foam fire extinguishing agent composition that does not contain a fluorine-based surfactant and a nonylphenol-based surfactant.
delete delete The method of claim 1,
The alkyl of the alkyl polyglucoside and the alkyl monoglucoside has 6 to 16 carbon atoms,
The alkyl polyglucoside is a foam fire extinguishing agent composition having a degree of polymerization of 1.2 to 1.7.
The method of claim 1,
The anionic surfactant is a foam (foam) fire extinguishing agent composition containing at least one selected from the group consisting of lactic acid ester salt, carboxylic acid salt, sulfonate salt, phosphate ester salt, amino acid ester salt, and citric acid ester salt.
delete delete The method of claim 1,
The foam extinguishing agent composition containing at least one selected from the group consisting of ethylene glycol, polyethylene glycol, propylene glycol, and polypropylene glycol as the freezing point depressant.
delete The foam extinguishing agent composition according to any one of claims 1, 4, 5 and 8, which is used for extinguishing alcoholic fires.