Why Does Aluminum Hydroxide Have A Flame Retardant Function?

Aluminum hydroxide is an additive flame retardant. When subjected to a high temperature of 235 degrees, a decomposition reaction will occur to produce water and alumina. When water turns into water vapor, it will take away a lot of heat and reduce the temperature of the synthetic material. The resulting alumina has a very high surface area, which prevents the contact between oxygen and organic matter, causing the interruption of combustion.

What needs to be explained is: aluminum hydroxide is an additive flame retardant, what does that mean? That is to say: in plastic synthetic materials, it does not play a major flame retardant effect. To reach the V0 level, it needs to be used together with other flame retardants.

Then someone said again, since you can't achieve the V0 effect by using it alone, then I don't need it. Wrong, the purpose of using aluminum hydroxide is to reduce the use of other flame retardants (other flame retardants are expensive), so as to achieve the purpose of reducing product costs.

Aluminum hydroxide is an inorganic flame retardant additive with a large amount and a wide range of applications. As a flame retardant, aluminum hydroxide is not only flame retardant, but also prevents smoke, drips, and toxic gases. Therefore, it has been widely used and its usage is increasing year by year. Scope of application: thermosetting plastics, thermoplastics, synthetic rubber, coatings and building materials industries.