CN102886114B - Universal easy degraded class A foam extinguishing chemical - Google Patents
Universal easy degraded class A foam extinguishing chemical Download PDFInfo
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- CN102886114B CN102886114B CN201210439578.8A CN201210439578A CN102886114B CN 102886114 B CN102886114 B CN 102886114B CN 201210439578 A CN201210439578 A CN 201210439578A CN 102886114 B CN102886114 B CN 102886114B
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Abstract
The present invention is universal easy degraded class A foam extinguishing chemical, comprise main foaming agent, auxiliary blowing agent, cosolvent, stabilizing agent and water, its percentage by weight consists of: main foaming agent 8%-25%, auxiliary blowing agent 5%-20%, cosolvent 20%-40%, foam stabiliser 0.1%-5%, water, surplus, also comprises appropriate wetting and penetrating agent, corrosion inhibiter and anticorrisive agent.This fire foam has the feature of excellent fire extinguishing, heat insulation barrier propterty and low toxicity, can put out a fire to save life and property fast common solid fire and liquid fire.
Description
Technical field
The invention belongs to extinguishing chemical, especially relate to a kind of universal easy degraded class A foam extinguishing chemical.
Background technology:
Fire foam is the fire extinguishing equipment of a kind of all kinds of solid that is mainly used in putting out a fire to save life and property, liquid fire, and play an important role in assuring the safety for life and property of the people, class A foam extinguishing chemical is mainly used in solid fire of putting out a fire to save life and property.
Once report was had to impose on building by the class A foam extinguishing chemical bubble jet fully foamed, can utilize and assemble air pocket in bubble to stop the heat radiation of extraneous burning things which may cause a fire disaster, thus avoid building ignite by the adjacent building that catches fire, but for obtaining this heat insulation protection effect, need foam to possess high stability and high-foaming multiple.In addition, current class A foam extinguishing chemical is mainly configured in class A foam fire fighting truck (being also called fighting fires with compressed-air foam car), if make class A foam extinguishing chemical possess to put out a fire to save life and property ability that is flammable, flammable liquid fire simultaneously, then can expand the class A foam fire fighting truck fire extinguishing operation scope of application preferably, make class A foam fire fighting truck all can set out when there is solid fire or liquid fire to fight, particularly during generation solid-liquid mixing fire (as automobile fire), its adaptability is even more ideal.Therefore, class A foam extinguishing chemical is had put out a fire to save life and property concurrently the function of category-A fire and category-B fire, then can expand fire extinguishing and the protection fight capability of fire department further, successfully manage the scene of a fire situation of all kinds of complexity.
It should be noted that fire foam is as a class chemicals, its environmental-protecting performance such as biological degradability, ecotoxicological comes into one's own day by day.In fact, in its production, storage, use or discarded whole life cycle, all there is the risk be released in natural environment, bring potential threat to environment in fire foam.Such as, fire foam is after scene of fire uses, and contained chemical constituent will flow into river, lake, sewerage system etc. along with water for fire extinguishing, or permeate the ground.Only for Dalian 7 ﹒ 16 fire in 2010, namely have more than 1,000 ton of fire foam to be discharged in Adjacent Sea and groundwater environment by fire extinguishing procedure, preliminary environmental assessment allows of no optimist.And for example, Switzerland's tire warehouse breaking out of fire in 1987, employs 750 tons of synthesis type fire foams and just controls the intensity of a fire, but the fish that fire foam flows in the kilometer range of downstream 50 are almost all dead.Similar situation occurred equally in Britain in 1992 chemical plant fire is disposed.In fact, fire foam is wherein contained organic compound to the basic reason that environment produces potential hazard, and such material will to environment.
Summary of the invention:
The effect that the present invention exists according to existing class A foam extinguishing chemical is single and pollute the technical problem of natural environment and open a kind of universal easy degraded class A foam extinguishing chemical, and this fire foam has the feature of excellent fire extinguishing, heat insulation barrier propterty and low toxicity.
Universal easy degraded class A foam extinguishing chemical of the present invention comprises main foaming agent, auxiliary blowing agent, cosolvent, stabilizing agent and water, and its percentage by weight consists of: main foaming agent 8%-25%, auxiliary blowing agent 5%-20%, cosolvent 20%-40%, foam stabiliser 0.1%-5%, water, surplus;
Described main foaming agent is the one of aliphatic alcohol sulfate, fatty alcohol sulfonate, alpha-sulfo fatty acid methyl ester sodium salt, carboxybetaine or sulfobetaines, wherein:
Aliphatic alcohol sulfate is lauryl sodium sulfate, ammonium lauryl sulfate or octyl sodium sulphate;
Fatty alcohol sulfonate is dodecyl sodium sulfate, dodecyl sulphate potassium or myristyl sodium sulfonate;
Alpha-sulfo fatty acid methyl ester sodium salt is alpha-sulfo methyl laurate sodium salt or alpha-sulfo myristic acid methyl ester sodium salt;
Carboxybetaine is dodecyldimethylammonium hydroxide inner salt or octyl dimethyl betaine;
Sulfobetaines is dodecyl dimethyl sulfopropyl betaine or dodecyldimethylamine base sulfopropyl betaine;
Described auxiliary blowing agent is the one of fatty alcohol polyoxyethylene ether sulfate, alpha-alkene sulfonate or APG, wherein:
Fatty alcohol polyoxyethylene ether sulfate is ethoxylated dodecyl alcohol sodium sulphate or n-octyl alcohol polyethenoxy ether sodium sulfate;
Alpha-alkene sulfonate is C
8-10alpha-alkene sulfonate, C
12alpha-alkene sulfonate or C
12-14alpha-alkene sulfonate;
APG is C
8-10aPG, C
12aPG or C
12-14aPG;
Described cosolvent is EGME, one in ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol dimethyl ether, butyl, propylene glycol monomethyl ether, dimethyl ether, ethylene glycol, propane diols, glycerine, n-butanol, isobutanol or choose any one kind of them ether and alcohol;
Described foam stabiliser be one in xanthans, Arabic gum, guar gum, peach gum, pectin, konjac glucomannan, gellan gum, carragheen, sodium alginate, cornstarch, carboxymethyl cellulose, hydroxypropyl methylcellulose, methylcellulose, ethyl cellulose, straight chained alkyl alkylolamides or higher alcohols or or optional two kinds and more than, wherein:
Straight chained alkyl alkylolamides is fatty monoethanol amide or fatty acid distribution of coconut oil diglycollic amide; Higher alcohols are n-octyl alcohol or Decanol, laruyl alcohol or tetradecanol.
Described universal easy degraded class A foam extinguishing chemical contains wetting and penetrating agent, described wetting and penetrating agent is the one in Aerosol OT (AOT), disecoctylmaleate sodium sulfonate (T), AEO (JFC), dibenzyl multiple phenol polyethenoxy ether (BS), NPE (NP) or OPEO (OP), and its weight percent content is 0.5%-2%.
Described universal easy degraded class A foam extinguishing chemical contains corrosion inhibiter, and described corrosion inhibiter is the one in aspartic acid, cinnamic acid, lauroyl sarcosine or S-carboxyethyl sulfosuccinic acid, and its weight percent content is 0.2%-2%.
Described universal easy degraded class A foam extinguishing chemical contains anticorrisive agent, and described anticorrisive agent is methyl p-hydroxybenzoate, ethyl-para-hydroxybenzoate or to the one in hydroxyl third propyl formate, its weight percent content is 0.1%-2%.
Class A foam extinguishing chemical uses after usually mixing with water with the mixing ratio of 0.1%-1.0%, far below the mixing ratio of traditional fire foam as aqueous film-forming foam extinguishing agent and protein foam extinguishing agent 3% or 6%.Therefore, if obtain preferably foam performance at lower premix than making class A foam extinguishing chemical under condition, selected blowing agent is necessarily required to possess good foam performance.
There is experience according to surface chemistry domain, when two or more hc-surfactant is composite, often can obtain the foam performance more excellent than wherein single a kind of surfactant.Therefore use main foaming agent and the composite means of auxiliary blowing agent in the present invention, give the foam performance of final products excellence, thus make it can possess desirable foam performance under lower working concentration.Furthermore, for the relation of surfactant structure and its foaming capacity, the common conclusions of Current surface chemical research and generally understanding is as follows: (1), for surfactant homologue, hydrophobic chain carbon number increases, and reduces the increase of capillary efficiency; (2) introduce branch in hydrophobic group carbochain, can foaming capacity be reduced; (3) anion surfactant and amphoteric surfactant generally have good foamability, and non-ionic surface active agent takes second place, and cationic surfactant is the most weak.And consider from the biological degradability of surfactant and ecotoxicological angle, then notice: the biological degradability of a. surfactant determines primarily of hydrophobic grouping; B. degradation property increases along with the increase of hydrophobic group linear degree; C. hydrophobic chain length also has impact to degradability, when alkyl chain length is at C
6-C
14between the most easily degrade; D. cationic surface active agent least easily biological-degradable; E. cationic surface active agent toxicity is the highest, and anionic is placed in the middle, nonionic and amphoteric surfactant toxicity generally on the low side; F. for aquatile, the toxicity of nonionic surface active agent is generally higher than anionic surfactant.Amid all these factors, the suitable hc-surfactant as main foaming agent should possess: a. hydrophobic main chain is linear chain structure; B. hydrophobic main chain length is at C
8-C
14between; C. relatively suitable ionic structure is anion or both sexes.
Based on above understanding, the present invention have selected the following 5 kinds of main foaming agents meeting above-mentioned requirements: (1) aliphatic alcohol sulfate, its general formula is ROSO
3m, the length of straight chain type R is at C
8-C
14between, M is Na
+, K
+or NH4
+; (2) fatty alcohol sulfonate, its general formula is ROSO
2m, the length of straight chain type R is at C
8-C
14between, M is Na
+, K
+or NH
4 +; (3) alpha-sulfo fatty acid methyl ester sodium salt, its general formula is RCH(SO
3na) COOCH
3, wherein the length of straight chain type R is at C
8-C
14between.(4) carboxybetaine, general formula is RN
+(CH
3)
2(CH
2)
ncOO
-, the length of straight chain type R is at C
10-C
14between, n=1-3; (5) sulfobetaines, its general formula is RN
+(CH
3)
2(CH
2)
msO
3 -, the length of straight chain type R is at C
10-C
14between, n=1-3.
Arranging auxiliary blowing agent is another significant design thought of the present invention: (1) lower surface tension is very important for fire foam liquid fire of putting out a fire to save life and property, and reduction surface tension component conventional is at present fluorine surfactant.But due to the well-known environmental persistence of fluorine surfactant, used by multiple international environmental convention restriction.Therefore be select a significant consideration of auxiliary blowing agent by the composite surface tension that reduce of two kinds of hc-surfactants; (2) furthermore, current known amphoteric surfactant, non-ionic surface active agent and anionic part surfactant have excellent compound property; (3) consider that the water quality of fire water supply in actual fire extinguishing procedure varies, therefore auxiliary blowing agent should possess good resistance to hard water, makes up the deficiency of part main foaming agent in resistance to hard water, expands application range of products, reduces the requirement to water quality.In this regard, comparatively suitable Blowing agent composition is similarly amphoteric surfactant, non-ionic surface active agent and anionic part surfactant.
Based on above understanding, the present invention have selected the following 3 kinds of auxiliary blowing agents meeting above-mentioned requirements: (1) fatty alcohol polyoxyethylene ether sulfate, its general formula is RO (C
2h
4o)
nsO
4na, the length of straight chain type R is at C
8-C
14between, n=1-4; (2) alpha-alkene sulfonate, the length of its straight chain type R is at C
8-C
14between; (3) APG, its general formula is RO (G)
n, wherein the length of straight chain type R is at C
8-C
14between, G is sugar unit, n>=2.
Cosolvent is the class component all contained in nearly all fire foam product.Generally speaking, the toxicity great majority of the polyalcohol ethers such as conventional diethylene glycol monomethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether and dimethyl ether are being low to moderate between micro-poison.Such as dimethyl ether just belongs to the green organic solvent of European Union/U.S.'s accreditation.Especially make universal easy degraded class A foam extinguishing chemical of the present invention obtain relatively low freezing point, make it also can use under more harsh environment, the mixture of ether and alcohol is more excellent as cosolvent effect.
In order to the stability making fire foam possess height, thus the effective covering effect playing its heat insulation protective action and liquid is evaporated, therefore foam stabiliser is a kind of component of interpolation required in this invention.Fire foam is the aggregation of a large amount of micro-bubble, and it is the process that an energy is introduced that foam solution changes foam into, and therefore foam is a thermodynamic unstable system, and its essence is impossible stable.The liquid film that the process that foam destroys mainly separates liquid is by thick thinning until the process of breaking, and therefore the stability of foam depends mainly on speed and the liquid film strength of discharge opeing.Being improved the stability of foam by interpolation respective substance increase liquid film elasticity and liquid film viscosity, is steady bubble means the most conventional at present.The foam stabiliser that the present invention selects has thickening, the polymer substance of character of thickening and straight chained alkyl alkylolamides or straight-chain alkyl alcohol.Wherein natural high molecular substance is almost non-toxic and have excellent biological degradability, and straight chained alkyl alkylolamides, its general formula is RON (CH
2cH
2oH)
2, the length of straight chained alkyl R is at C
8-C
18between, wherein the most conventional is fatty acid distribution of coconut oil diglycollic amide (commodity by name 6501).Higher alcohols are then a kind of straight chained alkyl primary alconols, and its general formula is ROH, and the length of straight chained alkyl R is at C
8-C
18between.
The present invention needs to add appropriate wetting and penetrating agent, corrosion inhibiter and anticorrisive agent according to using and storing of described universal easy degraded class A foam extinguishing chemical.
Add appropriate wetting and penetrating agent and be conducive to improving the extinguishing property that the present invention is directed to solid fire, the solid fire making it to timber, fabric stacking etc., deep fire easily occur is more effective.Although the main foaming agent of this fire foam and auxiliary blowing agent are hydrocarbon class surfactant, but its hydrophilic radical is usually at alkyl chain end, its wetting effect is not as the hydrocarbon class surfactant of hydrophilic radical in alkyl chain centre position, such as, conventional wetting and penetrating agent Aerosol OT (AOT), chemical constitution is:
Therefore add appropriate Aerosol OT and obviously can improve the extinguishing property of fire foam of the present invention for solid fire.The disecoctylmaleate sodium sulfonate that the present invention selects is commonly called as fast penetrant T and also belongs to this type of bleeding agent.The nonionic surface active agent of the type such as fatty alcohol, mercaptan containing polyoxyethylene chain link that the present invention selects is all the good wetting agents of effect when contained oxygen ethene trees are suitable.The present invention select as possessed general formula R O (CH
2cH
2o)
nh, R are C
8-C
10alkyl, the wetting and penetrating agent JFC of n=6-8, as the efficient wetting and penetrating agent of one, has good acid and alkali-resistance, stability in hard water energy and compatibility.This type of bleeding agent containing polyoxyethylene chain link also comprises dibenzyl multiple phenol polyethenoxy ether (BS), NPE (NP), OPEO (OP).
Corrosion inhibiter is added in right amount to the corrosion of packaging container of metal, to ensure the storage needs of fire foam for reducing this universal easy degraded class A foam extinguishing chemical.Aspartic acid selected by the present invention, cinnamic acid, lauroyl flesh ammonia, S-carboxyethyl sulfosuccinic acid are environmentally friendly corrosion inhibiter, possess the characteristics such as low toxicity, easily degraded, object according to the invention.
When adopting aforementioned natural high molecular substance as this universal easy degraded class A foam extinguishing chemical foam stabiliser, anticorrisive agent should be added in right amount, to ensure that product undergoes no deterioration within the shelf life of regulation.Methyl p-hydroxybenzoate selected by the present invention, ethyl-para-hydroxybenzoate or the anticorrisive agent that hydroxyl third propyl formate all be can be used as in food additives, toxicity is extremely low, biological degradability is good, and comparatively strong to mould, saccharomycetic restraint, object according to the invention.
Universal easy degraded class A foam extinguishing chemical of the present invention is on the basis meeting basic function characteristic, take into account biological degradability and the toxicological profile of each component, thus final products are had meet the remarkable result of expection: (1) can be puted out a fire to save life and property common solid fire and liquid fire fast, particularly just possesses common liquid fire ability of putting out a fire to save life and property preferably when not using any fluorine surfactant, and after with the addition of efficient wetting and penetrating agent, then very effective for solid deep fire of putting out a fire to save life and property; (2) the neighbour building of building of catching fire can be put on, play effectively insulating protective action; (3) foamite amount is low, namely putting out a fire to save life and property of conventional solid fire is can be used under 0.1%-0.3% mixing ratio condition, namely putting out a fire to save life and property of common liquid fire is can be used under 0.5%-0.8% mixing ratio condition, and when mixing ratio is 1.0%, coefficient of foaming foam that is high, very thickness can be produced, for the heat insulation protection of building; (4) through testing identity, universal easy degraded class A foam extinguishing chemical of the present invention, possessing on excellent fire extinguishing, barrier propterty basis, also has excellent biodegradability and lower toxicity, belongs to environmentally friendly efficient foam extinguishing chemical; (5) with low cost, during preparation, each component is added all by a certain percentage, and there is not accessory substance and discarded object, production process is pollution-free.
Detailed description of the invention
The present invention is further illustrated below in conjunction with embodiment.
Embodiment 1:
Universal easy degraded class A foam extinguishing chemical, the weight percent content respectively formed with total weight is: main foaming agent 8%, auxiliary blowing agent 20%, cosolvent 20%, foam stabiliser 0.1%, wetting and penetrating agent 0.1%, corrosion inhibiter 0..2%, anticorrisive agent 0.1%, and all the other are water.
Wherein:
Main foaming agent is aliphatic alcohol sulfate, specifically lauryl sodium sulfate, ammonium lauryl sulfate or octyl sodium sulphate.
Auxiliary blowing agent is fatty alcohol polyoxyethylene ether sulfate, specifically ethoxylated dodecyl alcohol sodium sulphate or n-octyl alcohol polyethenoxy ether sodium sulfate.
Cosolvent is the one in EGME, ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol dimethyl ether, butyl, propylene glycol monomethyl ether, dimethyl ether, ethylene glycol, propane diols, glycerine, n-butanol or isobutanol.
Foam stabiliser is the one in xanthans, Arabic gum, guar gum, peach gum, pectin, konjac glucomannan, gellan gum, carragheen, sodium alginate, cornstarch, carboxymethyl cellulose, hydroxypropyl methylcellulose, methylcellulose or ethyl cellulose.
Wetting and penetrating agent is the one of Aerosol OT (AOT), disecoctylmaleate sodium sulfonate (T), AEO (JFC), dibenzyl multiple phenol polyethenoxy ether (BS), NPE (NP) or OPEO (OP).
Corrosion inhibiter is aspartic acid.
Anticorrisive agent is methyl p-hydroxybenzoate.
The processing method of embodiment 1:
(1) main foaming agent, auxiliary blowing agent, cosolvent, foam stabiliser, wetting and penetrating agent, corrosion inhibiter, anticorrisive agent and water is prepared by weight percentage.
(2) foam stabiliser of natural high molecular substance is added to the water, swellingly spends the night.
(3) in auger tank, add cosolvent, under the condition stirred, add wetting and penetrating agent, corrosion inhibiter successively, continue to stir 1h.
(4) in auger tank, add foam stabiliser, the anticorrisive agent of main foaming agent, auxiliary blowing agent and swelling natural high molecular substance, add water to content, continue to be stirred to solution transparent.
Embodiment 2:
Universal easy degraded class A foam extinguishing chemical, the weight percent content respectively formed with total weight is: main foaming agent 12%, auxiliary blowing agent 15%, cosolvent 25%, foam stabiliser 1%, wetting and penetrating agent 0.8%, corrosion inhibiter 0.5%, anticorrisive agent 1%, and all the other are water.
Wherein:
Main foaming agent is fatty alcohol sulfonate, specifically dodecyl sodium sulfate, dodecyl sulphate potassium or myristyl sodium sulfonate.
Auxiliary blowing agent is alpha-alkene sulfonate, specifically C
8-10alpha-alkene sulfonate, C
12alpha-alkene sulfonate or C
12-14alpha-alkene sulfonate.
Cosolvent is EGME, choose any one kind of them in ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol dimethyl ether, butyl, propylene glycol monomethyl ether, dimethyl ether, ethylene glycol, propane diols, glycerine, n-butanol, isobutanol ether and alcohol mixing, and ratio is not limit.
Foam stabiliser is the mixing of in xanthans, Arabic gum, guar gum, peach gum, pectin, konjac glucomannan, gellan gum, carragheen, sodium alginate, cornstarch, carboxymethyl cellulose, hydroxypropyl methylcellulose, methylcellulose, ethyl cellulose optional two kinds, and ratio is not limit.
Corrosion inhibiter is a day cinnamic acid.
Anticorrisive agent is ethyl-para-hydroxybenzoate or to the one in hydroxyl third propyl formate.
Processing method is with embodiment 1.
Embodiment 3:
Universal easy degraded class A foam extinguishing chemical, the weight percent content respectively formed with total weight is: main foaming agent 17%, auxiliary blowing agent 12%, cosolvent 30%, foam stabiliser 2%, wetting and penetrating agent 1.2%, corrosion inhibiter 1%, anticorrisive agent 2%, and all the other are water.
Wherein:
Main foaming agent is alpha-sulfo fatty acid methyl ester sodium salt, specifically alpha-sulfo methyl laurate sodium salt or alpha-sulfo myristic acid methyl ester sodium salt.
Auxiliary blowing agent is APG, specifically C
8-10aPG, C
12aPG or C
12-14aPG.
Cosolvent is EGME, the mixing of choose any one kind of them in ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol dimethyl ether, butyl, propylene glycol monomethyl ether, dimethyl ether, ethylene glycol, propane diols, glycerine, n-butanol, isobutanol ether and alcohol, and ratio is not limit.
Foam stabiliser is mixing optionally several in xanthans, Arabic gum, guar gum, peach gum, pectin, konjac glucomannan, gellan gum, carragheen, sodium alginate, cornstarch, carboxymethyl cellulose, hydroxypropyl methylcellulose, methylcellulose, ethyl cellulose, and ratio is not limit.
Corrosion inhibiter is lauroyl sarcosine.
Anticorrisive agent is to hydroxyl third propyl formate.
Processing method is with embodiment 1.
Embodiment 4:
Universal easy degraded class A foam extinguishing chemical, the weight percent content respectively formed with total weight is: main foaming agent 22%, auxiliary blowing agent 8%, cosolvent 32%, foam stabiliser 3%, wetting and penetrating agent 1.5%, corrosion inhibiter 1.2%, and all the other are water.
Wherein:
Main foaming agent is carboxybetaine, specifically dodecyldimethylammonium hydroxide inner salt or octyl dimethyl betaine.
Auxiliary blowing agent is fatty alcohol polyoxyethylene ether sulfate, specifically ethoxylated dodecyl alcohol sodium sulphate or n-octyl alcohol polyethenoxy ether sodium sulfate.
Cosolvent is EGME, choose any one kind of them in ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol dimethyl ether, butyl, propylene glycol monomethyl ether, dimethyl ether, ethylene glycol, propane diols, glycerine, n-butanol, isobutanol ether and alcohol mixing.
Foam stabiliser is straight chained alkyl alkylolamides, specifically the one of fatty monoethanol amide or fatty acid distribution of coconut oil diglycollic amide.
Corrosion inhibiter is S-carboxyethyl sulfosuccinic acid.
The processing method of embodiment 4:
(1) main foaming agent, auxiliary blowing agent, cosolvent, foam stabiliser, wetting and penetrating agent, corrosion inhibiter and water is prepared by weight percentage.
(2) in auger tank, add cosolvent, under the condition stirred, add wetting and penetrating agent, corrosion inhibiter successively, continue to stir 1h.
(3) in auger tank, add main foaming agent, auxiliary blowing agent and foam stabiliser, add water to content, continue to be stirred to solution transparent.
Embodiment 5:
Universal easy degraded class A foam extinguishing chemical, the weight percent content respectively formed with total weight is: main foaming agent 25%, auxiliary blowing agent 5%, cosolvent 40%, foam stabiliser 5%, wetting and penetrating agent 2%, corrosion inhibiter 2%, and all the other are water.
Wherein:
Main foaming agent is sulfobetaines, specifically dodecyl dimethyl sulfopropyl betaine or dodecyldimethylamine base sulfopropyl betaine.
Auxiliary blowing agent is alpha-alkene sulfonate, specifically C
8-10alpha-alkene sulfonate, C
12alpha-alkene sulfonate or C
12-14alpha-alkene sulfonate.
Cosolvent is EGME, choose any one kind of them in ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol dimethyl ether, butyl, propylene glycol monomethyl ether, dimethyl ether, ethylene glycol, propane diols, glycerine, n-butanol, isobutanol ether and alcohol mixing.
Foam stabiliser is higher alcohols, specifically the one of n-octyl alcohol, Decanol, laruyl alcohol or tetradecanol.
Corrosion inhibiter is cinnamic acid.
Processing method is with embodiment 4.
The class A foam extinguishing chemical foam solution specified according to GB27897-2011 " class A foam extinguishing chemical " standard and foam solution performance test methods, detect respectively the universal easy degraded class A foam extinguishing chemical of above embodiment, the data area of its testing result is as shown in the table:
In addition, the universal easy degraded class A foam extinguishing chemical of method to above embodiment specified according to GB/T 21856-2008 " chemicals rapid biodegradability carbon dioxide produces test " detects respectively, result is 92.1 ~ 91.5% at the biological degradation rate of 28 days, much larger than the rapid biodegradability energy requirement of degraded 60% in 28 days, belonging to can rapid biodegradability chemicals, and not containing any fluorine surfactant composition, carrying capacity of environment is extremely low.
Claims (1)
1. universal easy degraded class A foam extinguishing chemical, it is characterized in that comprising main foaming agent, auxiliary blowing agent, cosolvent, stabilizing agent and water, its percentage by weight consists of: main foaming agent 8%-25%, auxiliary blowing agent 5%-20%, cosolvent 20%-40%, stabilizing agent 0.1%-5%, water, surplus;
Described main foaming agent is the one of aliphatic alcohol sulfate, fatty alcohol sulfonate, alpha-sulfo fatty acid methyl ester sodium salt, carboxybetaine or sulfobetaines, wherein:
Aliphatic alcohol sulfate is lauryl sodium sulfate, dodecyl sulphate potassium, ammonium lauryl sulfate or octyl sodium sulphate;
Fatty alcohol sulfonate is dodecyl sodium sulfate or myristyl sodium sulfonate;
Alpha-sulfo fatty acid methyl ester sodium salt is alpha-sulfo methyl laurate sodium salt or alpha-sulfo myristic acid methyl ester sodium salt; Carboxybetaine is dodecyldimethylammonium hydroxide inner salt or octyl dimethyl betaine;
Sulfobetaines is dodecyl dimethyl sulfopropyl betaine or dodecyldimethylamine base sulfopropyl betaine;
Described auxiliary blowing agent is the one of fatty alcohol polyoxyethylene ether sulfate, alpha-alkene sulfonate or APG, wherein:
Fatty alcohol polyoxyethylene ether sulfate is ethoxylated dodecyl alcohol sodium sulphate or n-octyl alcohol polyethenoxy ether sodium sulfate;
Alpha-alkene sulfonate is C
8-10alpha-alkene sulfonate, C
12alpha-alkene sulfonate or C
12-14alpha-alkene sulfonate;
APG is C
8-10aPG, C
12aPG or C
12-14aPG;
Described cosolvent is EGME, one in ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol dimethyl ether, butyl, propylene glycol monomethyl ether, dimethyl ether, ethylene glycol, propane diols, glycerine, n-butanol, isobutanol or choose any one kind of them ether and alcohol;
Described stabilizing agent be one in xanthans, Arabic gum, guar gum, peach gum, pectin, konjac glucomannan, gellan gum, carragheen, sodium alginate, cornstarch, carboxymethyl cellulose, hydroxypropyl methylcellulose, methylcellulose, ethyl cellulose, straight chained alkyl alkylolamides or higher alcohols or optional two kinds and more than, wherein:
Straight chained alkyl alkylolamides is fatty monoethanol amide or fatty acid distribution of coconut oil diglycollic amide; Higher alcohols are n-octyl alcohol or Decanol, laruyl alcohol or tetradecanol;
Described universal easy degraded class A foam extinguishing chemical contains wetting and penetrating agent, described wetting and penetrating agent is the one in Aerosol OT (AOT), disecoctylmaleate sodium sulfonate (T), AEO (JFC), dibenzyl multiple phenol polyethenoxy ether (BS), NPE (NP) or OPEO (OP), and its weight percent content is 0.5%-2%;
Described universal easy degraded class A foam extinguishing chemical contains corrosion inhibiter, and described corrosion inhibiter is the one in aspartic acid, cinnamic acid, lauroyl sarcosine or S-carboxyethyl sulfosuccinic acid, and its weight percent content is 0.2%-2%;
Described universal easy degraded class A foam extinguishing chemical contains anticorrisive agent, and described anticorrisive agent is methyl p-hydroxybenzoate, ethyl-para-hydroxybenzoate or to the one in hydroxyl third propyl formate, its weight percent content is 0.1%-2%.
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Address after: No. 110 Wei Jinnan Road, Nankai District, Tianjin Patentee after: Tianjin Institute of Fire Protection, Ministry of Emergency Management Address before: No. 110 Wei Jinnan Road, Nankai District, Tianjin Patentee before: Tianjin Fire Fighting Inst., Ministry of Public Security |