Aluminum hydroxide is an additive type of flame retardant. At a temperature of 235 degrees, a decomposition reaction will take place to form water and alumina. When water turns into steam, it will take away a lot of heat and reduce the temperature of synthetic materials. The alumina produced has extremely high surface area, which prevents the contact of oxygen and organic matter, resulting in the interruption of combustion.
What needs to be said is: aluminum hydroxide is added flame retardant. What does that mean? That is to say, in the plastic synthetic material, it is not a major flame retardant. To reach the V0 level, it also needs to be used with some other flame retardants.
Then someone said, since you can't get the V0 effect alone, then I won't have to use it. Mistaken, the purpose of using aluminum hydroxide is to reduce the use of other flame retardants (other flame retardants are expensive), thus reducing the cost of the product.
The use of aluminum hydroxide:
Aluminum hydroxide is the largest and most widely used inorganic flame retardant additive. Aluminum hydroxide as a flame retardant can not only flame retardant, but also prevent smoke, not produce drops, and do not produce toxic gases. Therefore, it has been widely used, and the amount of use is increasing year by year. Scope of application: thermosetting plastics, thermoplastics, synthetic rubber, coatings and building materials.