With the diversification of modern industry and human activities, the threat of fire is becoming more and more serious. In this context, flame retardants have become an important tool in the field of fire prevention and control. This article will detail the definition, types and applications of flame retardants in fire safety.
Definition of flame retardant: A flame retardant is a special chemical substance whose main role is to slow or stop the spread of flames in the event of a fire. It achieves fire prevention by changing the combustion properties of the material, reducing the heat release rate, and inhibiting the generation of smoke. Flame retardants are widely used in various materials, such as plastics, fibers, rubber, and coatings, to improve their fire performance.
Types of flame retardants: According to the mechanism of action and use, flame retardants are roughly divided into the following categories, 1. Inorganic flame retardants, such as aluminum hydroxide and magnesium hydroxide, these flame retardants decompose when heated, absorb a large amount of heat and produce water vapor, thereby reducing the temperature and oxygen concentration of combustibles. 2. Organic flame retardants such as halogen flame retardants (such as bromide and chloride), phosphorus flame retardants (such as phosphate esters and halophosphate esters), etc. They achieve flame retardancy by inhibiting the chain reaction process of the combustion reaction. 3. Composite flame retardant is a composite composed of inorganic and organic flame retardant, which has the advantages of both and has better flame retardant performance.
Application of flame retardants: Flame retardants are widely used in many fields such as industry, construction, transportation, etc. For example, in the construction field, flame retardants can be used to improve the combustion performance of building materials, in the transportation field, flame retardants can be used to make non-flammable vehicle and aircraft materials, and in the industrial field, flame retardants can be used for the fire protection treatment of various flammable materials.
As an important tool for fire prevention and control, flame retardants cannot be ignored in their role and value. Understanding and mastering the relevant knowledge of flame retardants is of great significance for improving fire safety knowledge and preventing fire accidents.