What is the flame retardant principle of aluminum hydroxide？
In fact, many organic polymer materials that are common in life are potential fire hazards. So how to avoid the possibility of fire? First of all, flame retardant treatment should be carried out on flammable polymer materials.
Adding flame retardants to polymer materials is one of the best ways to deal with flame retardancy. Aluminum hydroxide powder is a better choice. It has a wide range of sources, low prices, and has multiple functions such as flame retardant, smoke elimination and filling, and has been widely used in electronics, chemicals, cables, plastics, rubber and other industries. It is one of the environmentally friendly flame retardants.
The flame retardant principle of Fire Retardant Aluminum Hydroxide for Aluminum Chemicals is as follows:
1. Aluminum hydroxide has the effect of absorbing heat. When a fire occurs, it can dehydrate and absorb heat, and can also inhibit the temperature rise of the polymer;
2. Aluminum fire retardant has a dilution effect. Filled with Al(OH)3 to reduce the concentration of flammable polymers and prevent combustion;
3. Aluminum hydroxide has a covering effect. When Al(OH)3 is dehydrated, a layer of Al2O3 protective film will be formed on the surface of combustibles, which can isolate oxygen and prevent the continuation of combustion;
3. Aluminum hydroxide has the effect of carbonization. The flame retardant will produce a strong dehydrating substance under combustion, which can carbonize the plastic, so that it will not produce flammable volatiles, and then prevent the spread of the flame.
In addition, the application of aluminum hydroxide in plastics can also improve the properties of the material such as UV resistance, arc resistance, and dielectric properties, and can also improve the controllability of the shrinkage of the material after molding.
