Environment-friendly fluoride-free foam extinguishing agent and preparation method thereof

A foam fire extinguishing agent, environmental protection technology, applied in the direction of fire prevention equipment, etc., can solve the problems of limited application range, toxic fire extinguishing agent, harmful environment, etc., and achieve high fire extinguishing efficiency, good foam stability, and excellent environmental performance.

Inactive Publication Date: 2020-11-27
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that traditional fire extinguishing agents in the prior art are toxic, not environmentally friendly, and have limited scope of application, and the use of fluorocarbon surfactants and chelating agents in existing foam fire extinguishing agents is har

Method used

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  • Environment-friendly fluoride-free foam extinguishing agent and preparation method thereof
  • Environment-friendly fluoride-free foam extinguishing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of an environment-friendly fluorine-free foam fire extinguishing agent, comprising the following steps:

[0033] S1: Weigh 3 g of sodium lauryl sulfate, 2 g of modified silicone surfactant, 15 g of alkyl glycoside, 2 g of polyethylene glycol, 13 g of water-soluble imidazoline, 10 g of dodecyl dimethyl betaine, Glycol 2g, ethylene glycol 10g, diethylene glycol monobutyl ether 2g; xanthan gum 0.2g, sodium carboxymethylcellulose 0.2g, urea 3g.

[0034]S2: Fully mix the sodium lauryl sulfate, modified silicone surfactant, alkyl glycoside, polyethylene glycol and 15mL of water weighed in step S1 to form mixture A; Imidazoline, dodecyl dimethyl betaine and 7.5 mL of water are fully mixed to form a mixture B; the dodecyl alcohol, ethylene glycol, and diethylene glycol monobutyl ether weighed in step S1 are fully mixed to form a mixture C ; Xanthan gum, carboxymethyl cellulose, and urea weighed in step S1 are fully mixed to form a mixture D;

[0035] S3: ...

Embodiment 2

[0043] A preparation method of an environment-friendly fluorine-free foam fire extinguishing agent, comprising the following steps:

[0044] S1: Weigh 4g of sodium lauryl sulfate, 3g of modified silicone surfactant, 17.5g of alkyl glycoside, 3.5g of polyethylene glycol, 15.5g of water-soluble imidazoline, and dodecyldimethyl betaine 12g, 2.5g of lauryl alcohol, 12.5g of ethylene glycol, 3.5g of diethylene glycol monobutyl ether, 0.3g of xanthan gum, 0.35g of sodium carboxymethylcellulose, 4g of urea.

[0045] S2: Fully mix the sodium lauryl sulfate, modified silicone surfactant, alkyl glycoside, polyethylene glycol and 8.5 mL of water weighed in step S1 to form mixture A; dissolve the weighed water in step S1 Imidazoline, dodecyl dimethyl betaine and 4.3mL of water are fully mixed to form mixture B; lauryl alcohol, ethylene glycol, and diethylene glycol monobutyl ether weighed in step S1 are fully mixed to form a mixture C; Xanthan gum, carboxymethyl cellulose, and urea weigh...

Embodiment 3

[0054] A preparation method of an environment-friendly fluorine-free foam fire extinguishing agent, comprising the following steps:

[0055] S1: Weigh 5 g of sodium lauryl sulfate, 4 g of modified silicone surfactant, 20 g of alkyl glycoside, 5 g of polyethylene glycol, 18 g of water-soluble imidazoline, 14 g of dodecyl dimethyl betaine, 3g of glycol, 15g of ethylene glycol, 5g of diethylene glycol monobutyl ether, 0.4g of xanthan gum, 0.5g of sodium carboxymethylcellulose, and 5g of urea.

[0056] S2: Fully mix the sodium lauryl sulfate, modified silicone surfactant, alkyl glycoside, polyethylene glycol and 2mL of water weighed in step S1 to form mixture A; mix the water-soluble Imidazoline, dodecyl dimethyl betaine and 1 mL of water are fully mixed to form a mixture B; the dodecyl alcohol, ethylene glycol, and diethylene glycol monobutyl ether weighed in step S1 are fully mixed to form a mixture C; Fully mixing the xanthan gum, carboxymethyl cellulose, and urea weighed in s...

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Abstract

The invention belongs to the technical field of fire extinguishing materials, particularly relates to an environment-friendly fluoride-free foam extinguishing agent and a preparation method thereof, and solves the problems that a traditional extinguishing agent in the prior art is toxic, not environment-friendly and limited in application range, and a fluorocarbon surfactant, a chelating agent andthe like used in an existing foam extinguishing agent are harmful to the environment. The technical scheme of the invention is as follows: the environment-friendly fluoride-free foam extinguishing agent is formed by mixing a foam concentrate liquid and water according to the volume ratio of 6:94; and the foam concentrate liquid includes the following ingredients: a modified organic silicon surfactant, lauryl sodium sulfate, alkyl glycoside, water-soluble imidazoline, dodecyl dimethyl betaine, dodecanol, polyethylene glycol, xanthan gum, sodium carboxymethylcellulose, ethylene glycol, urea, diethylene glycol monobutyl ether and water. According to the product, a traditional fluorocarbon surfactant is replaced with the modified organic silicon surfactant, so that the product is green and pollution-free, and can be widely applied to fire prevention key units such as oil fields, oil depots, ships, submarines, petrochemical plants, hangars, airports and the like.

Description

technical field [0001] The invention belongs to the technical field of fire-fighting and fire-extinguishing materials, and in particular relates to an environment-friendly fluorine-free foam fire-extinguishing agent and a preparation method thereof. Background technique [0002] Aqueous Film Forming Foam (AFFF) fire extinguishing agent, also known as "light water" foam fire extinguishing agent, is a high-efficiency fire extinguishing agent developed abroad in the 1960s; AFFF has dual fire extinguishing effects of foam and water film It guarantees its high-efficiency fire extinguishing performance. Its composition includes foaming agent, foam stabilizer, cosolvent and antifreeze, etc., and the core component is foaming agent, which is generally composed of fluorocarbon surfactant and hydrocarbon surfactant. , Fluorocarbon surfactant is the decisive factor for AFFF's efficient fire extinguishing efficiency, and also the key factor for AFFF to form a water film on the fuel surf...

Claims

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Application Information

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IPC IPC(8): A62D1/02
CPCA62D1/0042A62D1/0071
Inventor 肖国清李媛媛雷蕾陈春燕陈春林
Owner SOUTHWEST PETROLEUM UNIV
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