CN112023325A - Aqueous film-forming foam extinguishing agent and preparation method thereof - Google Patents
Aqueous film-forming foam extinguishing agent and preparation method thereof Download PDFInfo
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- CN112023325A CN112023325A CN202010705841.8A CN202010705841A CN112023325A CN 112023325 A CN112023325 A CN 112023325A CN 202010705841 A CN202010705841 A CN 202010705841A CN 112023325 A CN112023325 A CN 112023325A
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- Prior art keywords
- aqueous film
- extinguishing agent
- forming foam
- fluorocarbon surfactant
- foam extinguishing
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0071—Foams
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The invention discloses an aqueous film-forming foam extinguishing agent and a preparation method thereof, belonging to the field of foam extinguishing agents and comprising the following raw materials in parts by weight: 5-10% of fluorocarbon surfactant, 15-20% of foaming agent, 5-110% of urea, 0.3-0.5% of ethylene glycol, 1-3% of potassium chloride, 5-10% of sodium bicarbonate and the balance of water. Compared with the aqueous film-forming foam extinguishing agent, the aqueous film-forming foam extinguishing agent has more excellent performance, the foaming multiple (20 ℃) is more than or equal to 8.5, the fire extinguishing time is less than or equal to 5s, the sealing time is more than or equal to 17min, and the aqueous film-forming foam extinguishing agent is biodegradable and more environment-friendly.
Description
Technical Field
The invention belongs to the field of foam extinguishing agents, and particularly relates to an aqueous film-forming foam extinguishing agent and a preparation method thereof.
Background
The water film-forming foam extinguishing agent, also called light water foam extinguishing agent, has the best fire extinguishing effect due to the double fire extinguishing functions of the water film-forming and the foam. And because most of components in the water film-forming foam extinguishing agent are water, the foam extinguishing agent is taken as an ideal substitute of a Halon fire extinguishing agent in the international 'elimination of Halon action', and becomes a fire extinguishing agent which is mainly developed internationally.
The principle of aqueous film-forming fire extinguishants is based on the spreading of very low concentration aqueous fluorosurfactant solutions on the oil surface. The fluorocarbon surfactant is a special surfactant formed by partially or completely replacing hydrogen atoms in a hydrocarbon chain of a common surfactant (a hydrocarbon surfactant) molecule with fluorine atoms, is the highest surfactant in all the surfactants at present, and has one of the most outstanding properties that the fluorocarbon surfactant can reduce the surface tension of water to be very low so that an aqueous solution can spread on the surface of oil to form a water film. Such an aqueous fluorocarbon surfactant solution capable of spreading a water film formed on an oil surface is commonly referred to as "light water".
However, the fluorine surfactant adopted by the existing aqueous film-forming foam extinguishing agent is difficult to degrade and has great pollution to the environment.
Disclosure of Invention
The invention aims to: aiming at the problem that the fluorine surfactant adopted by the aqueous film-forming foam extinguishing agent is difficult to degrade, the invention provides the aqueous film-forming foam extinguishing agent and the preparation method thereof.
The technical scheme adopted by the invention is as follows:
an aqueous film-forming foam extinguishing agent is composed of the following raw materials by weight: 5-10% of fluorocarbon surfactant, 15-20% of foaming agent, 5-110% of urea, 0.3-0.5% of ethylene glycol, 1-3% of potassium chloride, 5-10% of sodium bicarbonate and the balance of water.
Preferably, the feed consists of the following raw materials in parts by weight: 5% of fluorocarbon surfactant, 14% of foaming agent, 70% of urea, 0.2% of ethylene glycol, 2% of potassium chloride, 8% of sodium bicarbonate and the balance of water.
Preferably, the fluorocarbon surfactant is a fluorocarbon surfactant FC-4430, INTECHEM-01 fluorocarbon surfactant or INTECHEM-03 fluorocarbon surfactant.
Preferably, the foaming agent is an anionic surfactant and a foam stabilizer in a mass ratio of 1: (0.5-0.9) by compounding.
Preferably, the anionic surfactant comprises sodium fatty alcohol-polyoxyethylene ether sulfate or sodium dodecyl sulfate; the foam stabilizer is silicone polyether emulsion.
A preparation method of an aqueous film-forming foam extinguishing agent comprises the following steps: firstly, adding water into a stirring tank, adding a fluorocarbon surfactant, a compound foaming agent, urea, ethylene glycol, potassium chloride and sodium bicarbonate into the stirring tank at the water temperature of between 0 and 35 ℃, and stirring for more than 1.5 hours.
Compared with the prior art, the invention has the beneficial effects that:
(1) compared with the traditional dry powder fire extinguishing agent, the invention has no dust pollution, and the aqueous film-forming foam extinguishing agent formed by the fluorocarbon surfactant, the foaming agent, the urea, the glycol, the potassium chloride, the sodium bicarbonate and a proper amount of water has no pollution and toxicity to the environmental atmospheric soil.
(2) Compared with the aqueous film-forming foam extinguishing agent, the aqueous film-forming foam extinguishing agent has more excellent performance, the foaming multiple (20 ℃) is more than or equal to 8.5, the fire extinguishing time is less than or equal to 5s, the sealing time is more than or equal to 17min, and the aqueous film-forming foam extinguishing agent is biodegradable and more environment-friendly.
Detailed Description
The present invention will be described in further detail in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The aqueous film-forming foam extinguishing agent disclosed by the invention sprays aqueous film-forming foam when encountering fire, the foam isolates comburent and oxygen on the surface of the comburent, and the foam extinguishing agent is cooled to extinguish fire. The composite material consists of the following raw materials in parts by weight: 5-10% of fluorocarbon surfactant, 15-20% of foaming agent, 5-110% of urea, 0.3-0.5% of ethylene glycol, 1-3% of potassium chloride, 5-10% of sodium bicarbonate and the balance of water. The fluorocarbon surfactant is a carbon surfactant, such as a fluorocarbon surfactant FC-4430, an INTECHEM-01 fluorocarbon surfactant or an INTECHEM-03 fluorocarbon surfactant, and the fluorine-containing structures are branched chains containing ether bonds, so that the fluorocarbon surfactant is biodegradable and extremely environment-friendly. The foaming agent is an anionic surfactant and a foam stabilizer in a mass ratio of 1: (0.5-0.9) by compounding.
The anionic surfactant comprises fatty alcohol-polyoxyethylene ether sodium sulfate or lauryl sodium sulfate; the foam stabilizer is silicone polyether emulsion. The anionic surfactant and the foam stabilizer have strong foaming and foam stabilizing capabilities under the synergistic action.
A preparation method of an aqueous film-forming foam extinguishing agent comprises the following steps: firstly, adding water into a stirring tank, adding a fluorocarbon surfactant, a compound foaming agent, urea, ethylene glycol, potassium chloride and sodium bicarbonate into the stirring tank at the water temperature of between 0 and 35 ℃, and stirring for more than 1.5 hours.
Example 1
The invention relates to an aqueous film-forming foam extinguishing agent, which consists of the following raw materials in parts by weight: 5% of fluorocarbon surfactant, 15% of foaming agent, 5% of urea, 0.3% of ethylene glycol, 1% of potassium chloride, 5% of sodium bicarbonate and the balance of water. The fluorocarbon surfactant is a fluorocarbon surfactant FC-4430. The foaming agent is an anionic surfactant and a foam stabilizer in a mass ratio of 1: 0.5 is compounded. The anionic surfactant comprises fatty alcohol-polyoxyethylene ether sodium sulfate; the foam stabilizer is silicone polyether emulsion.
A preparation method of an aqueous film-forming foam extinguishing agent comprises the following steps: firstly, adding water into a stirring tank, adding a fluorocarbon surfactant, a compound foaming agent, urea, ethylene glycol, potassium chloride and sodium bicarbonate into the stirring tank at the water temperature of 5 ℃, and stirring for 1.5 hours.
The results of the technical tests according to GB15308-2006 are shown in Table 1.
Example 2
The invention relates to an aqueous film-forming foam extinguishing agent, which consists of the following raw materials in parts by weight: 5% of fluorocarbon surfactant, 14% of foaming agent, 70% of urea, 0.2% of ethylene glycol, 2% of potassium chloride, 8% of sodium bicarbonate and the balance of water. The fluorocarbon surfactant is INTECHEM-01 fluorocarbon surfactant. The foaming agent is an anionic surfactant and a foam stabilizer in a mass ratio of 1: 0.8 is compounded. The anionic surfactant is sodium dodecyl sulfate; the foam stabilizer is silicone polyether emulsion.
A preparation method of an aqueous film-forming foam extinguishing agent comprises the following steps: firstly, adding water into a stirring tank, adding a fluorocarbon surfactant, a compound foaming agent, urea, ethylene glycol, potassium chloride and sodium bicarbonate into the stirring tank at the water temperature of between 0 and 35 ℃, and stirring for more than 1.5 hours.
The results of the technical tests according to GB15308-2006 are shown in Table 1.
Example 3
An aqueous film-forming foam extinguishing agent is composed of the following raw materials by weight: 10% of fluorocarbon surfactant, 20% of foaming agent, 110% of urea, 0.5% of ethylene glycol, 3% of potassium chloride, 10% of sodium bicarbonate and the balance of water. The fluorocarbon surfactant is INTECHEM-03 fluorocarbon surfactant. The foaming agent is an anionic surfactant and a foam stabilizer in a mass ratio of 1: 0.9 is compounded. The anionic surfactant comprises fatty alcohol-polyoxyethylene ether sodium sulfate; the foam stabilizer is silicone polyether emulsion.
A preparation method of an aqueous film-forming foam extinguishing agent comprises the following steps: firstly, adding water into a stirring tank, adding a fluorocarbon surfactant, a compound foaming agent, urea, ethylene glycol, potassium chloride and sodium bicarbonate into the stirring tank at the water temperature of between 0 and 35 ℃, and stirring for more than 1.5 hours.
The results of the technical tests according to GB15308-2006 are shown in Table 1.
Table 1 technical index test tables of examples 1 to 3
As can be seen from Table 1, the aqueous film-forming foam extinguishing agent of the present invention has excellent performance, is easily degradable, and is environmentally friendly.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (6)
1. An aqueous film-forming foam extinguishing agent is characterized by comprising the following raw materials in parts by weight: 5-10% of fluorocarbon surfactant, 15-20% of foaming agent, 5-110% of urea, 0.3-0.5% of ethylene glycol, 1-3% of potassium chloride, 5-10% of sodium bicarbonate and the balance of water.
2. The aqueous film-forming foam extinguishing agent according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 5% of fluorocarbon surfactant, 14% of foaming agent, 70% of urea, 0.2% of ethylene glycol, 2% of potassium chloride, 8% of sodium bicarbonate and the balance of water.
3. An aqueous film forming foam fire suppressant according to claim 1 wherein said fluorocarbon surfactant is a fluorocarbon surfactant FC-4430, INTECHEM-01 fluorocarbon surfactant or INTECHEM-03 fluorocarbon surfactant.
4. The aqueous film-forming foam extinguishing agent as claimed in claim 1, wherein the foaming agent is an anionic surfactant and a foam stabilizer in a mass ratio of 1: (0.5-0.9) by compounding.
5. An aqueous film-forming foam fire suppressant according to claim 4 wherein the anionic surfactant comprises sodium fatty alcohol polyoxyethylene ether sulphate or sodium lauryl sulphate; the foam stabilizer is silicone polyether emulsion.
6. The method for preparing the aqueous film-forming foam fire extinguishing agent according to any one of claims 1 to 5, which is characterized by comprising the following steps: firstly, adding water into a stirring tank, adding a fluorocarbon surfactant, a compound foaming agent, urea, ethylene glycol, potassium chloride and sodium bicarbonate into the stirring tank at the water temperature of between 0 and 35 ℃, and stirring for more than 1.5 hours.
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Citations (6)
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|---|---|---|---|---|
| WO1985004109A1 (en) * | 1984-03-15 | 1985-09-26 | Rtg - Regeltechnische Geräte P. Lüthge Gmbh | Liquid foaming extinguisher agent |
| CN1759905A (en) * | 2004-10-15 | 2006-04-19 | 北京大学 | Fire foam of aqueous film |
| CN102614614A (en) * | 2012-03-12 | 2012-08-01 | 山东环绿康新材料科技有限公司 | Self-penetrating anti-after combustion fire extinguishing agent |
| CN104587631A (en) * | 2014-12-26 | 2015-05-06 | 国家电网公司 | Anti-reburning environment-friendly power transmission line forest fire extinguishing agent |
| CN108042967A (en) * | 2017-12-27 | 2018-05-18 | 广东自由能科技股份有限公司 | A kind of fluorine-containing high-efficiency environment friendly extinguishing chemical and preparation method thereof |
| CN110801596A (en) * | 2019-11-12 | 2020-02-18 | 江西圣辉生化科技有限公司 | Fire extinguishing agent composition, preparation method and application thereof |
-
2020
- 2020-07-21 CN CN202010705841.8A patent/CN112023325A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985004109A1 (en) * | 1984-03-15 | 1985-09-26 | Rtg - Regeltechnische Geräte P. Lüthge Gmbh | Liquid foaming extinguisher agent |
| CN1759905A (en) * | 2004-10-15 | 2006-04-19 | 北京大学 | Fire foam of aqueous film |
| CN102614614A (en) * | 2012-03-12 | 2012-08-01 | 山东环绿康新材料科技有限公司 | Self-penetrating anti-after combustion fire extinguishing agent |
| CN104587631A (en) * | 2014-12-26 | 2015-05-06 | 国家电网公司 | Anti-reburning environment-friendly power transmission line forest fire extinguishing agent |
| CN108042967A (en) * | 2017-12-27 | 2018-05-18 | 广东自由能科技股份有限公司 | A kind of fluorine-containing high-efficiency environment friendly extinguishing chemical and preparation method thereof |
| CN110801596A (en) * | 2019-11-12 | 2020-02-18 | 江西圣辉生化科技有限公司 | Fire extinguishing agent composition, preparation method and application thereof |
Non-Patent Citations (2)
| Title |
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| 任侃等: "《防火检查手册》", 31 December 1982, 上海科学技术出版社 * |
| 若莲: "氟碳表面活性剂产品介绍", 《氟碳表面活性剂产品介绍》 * |
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