Green and environment-friendly aqueous film-forming foam fire extinguishing agent

Abstract

The invention discloses a green and environment-friendly aqueous film-forming foam fire extinguishing agent which is composed of the following raw materials in parts by mass: 1 to 3 parts of a polysiloxane surfactant, 5 to 8 parts of C9-11 alkanol polyether, 3 to 4 parts of 2-methyl-2,4-pentanediol, 0.5 to 1.2 parts of a composite film forming agent, 1 to 3 parts of polyoxyethylene, 20 to 30 partsof a polymer micro-cell capsule agent, 2.5 to 4.5 parts of diethylene glycol monobutyl ether, and 46.5 to 61 parts of deionized water. Beneficial effects are that: the method is suitable for large-scale production; the preparation method comprises the following steps: compounding a polysiloxane surfactant and C9-11 alkanol polyether; the traditional fluorocarbon surfactant is replaced; the fluorocarbon surfactant has excellent stability, good compatibility, no irritation to skin, good biodegradability and excellent decontamination, emulsification and hard water resistance under acidic and alkaline conditions, solves the problem that the fluorocarbon surfactant is difficult to degrade, reduces pollution to the natural environment and prevents indirect harm to human beings.

Description

technical field [0001] The invention relates to the technical field of an aqueous film-forming foam fire extinguishing agent, in particular to a green and environment-friendly aqueous film-forming foam fire extinguishing agent. Background technique [0002] Aqueous film-forming foam fire extinguishing agent is a fire extinguishing agent used for hydrocarbon liquid fires, which can form a layer of water film on the surface of hydrocarbon liquid that can inhibit the evaporation of the compound, and this water film floats on the surface of the burning object to guide the foam layer , improve the fluidity of the foam layer, thereby playing a more effective fire extinguishing effect. The water film-forming foam fire extinguishing agent can form a water film on the surface of the hydrocarbon compound during use. Through the double function of the foam and the water film, the fire extinguishing efficiency is improved, and the flame and the foam are isolated by the coverage of the w...

AI Technical Summary

Problems solved by technology

In the production of aqueous film-forming foam fire extinguishing agents, surfactants need to be added. Fluorocarbon surfactants are usually added in the prior art. This type of surfactants has a very stable structure in the natural environment and can last for hundreds of years. There are long-term and cumulative hazards. At the same time, after fluorocarbon surfactants are discharged into the natural environment with the foam, they will pollute the water source and soil of the natural environment. After being absorbed by crops and wild plants, such substances will also indirectly affect human health