AFFF water film-forming fire extinguishing agent is one of the fire extinguishing agents used to extinguish liquid fires, and its main components usually include:
1. Water: It is the basic component of foam liquid, which is used to reduce the temperature of the fire and extinguish the flame.
2. Surfactant:
Also known as foaming agents, it helps water form foam and increases the stability of the foam so that it can coat the fire surface and isolate oxygen, thus extinguishing the flames.
3. Thickener:
Sometimes some thickener is added to increase the viscosity and persistence of the foam to ensure that the foam can cover the fire area for a longer period of time.
4. Gas: Some AFFF water film-forming fire extinguishing agents also contain gases (such as nitrogen or carbon dioxide) to increase the volume and coverage area of the foam.
5. Chemical additives:
In certain types of AFFF water-forming film extinguishing agents, special chemicals, such as fluorine compounds, may be added to increase the effectiveness of extinguishing specific types of fires, such as oil fires.
The proportions and specific formulations of these ingredients may vary depending on the manufacturer and product type.
Different types of AFFF water-forming film-forming fire extinguishing agents may be used in different types of fires, so their composition and effects will also vary.