Magnesium oxide manufacturers introduce the relationship between magnesium oxide and flame retardants

Magnesium oxide manufacturers introduced that natural magnesium hydroxide undergoes differentiation when heated (340-490 degrees) and absorbs the surface heat of the incinerator to achieve a flame retardant effect; together it releases a lot of water to dilute the oxygen on the surface of the incinerator, and the differentiated active magnesium oxide adheres to the combustible The physical appearance further obstructed the incineration. 98 fused magnesia.

The flame retardant magnesium hydroxide is not yet experienced in domestic skills. The details are generally not said, but it can clarify related simple issues.

Magnesium oxide manufacturers have three methods to produce flame retardant magnesium hydroxide:

One is a simple physical destruction method. Dry or wet methods are used to destroy the magnesium hydroxide produced by brucite or chemical methods to 1 to 5 microns. The finer the particle size, the better the flame retardant effect. The intensity of the impact.

The second is the hydrothermal synthesis method. The magnesium hydroxide colloid is reacted under hydrothermal conditions at 140~180℃. The flame retardant magnesium hydroxide with a particle size of about 1 to 2 microns is obtained.

The third is the hydration method. The magnesium oxide is hydrated in a special hydrating agent solution, and the obtained magnesium hydroxide has a particle size of about 1 to 5 microns. The foreign high-quality flame retardant magnesium hydroxide is generally produced by the latter two methods. It has the advantages of fine particle size, smaller than appearance and good appearance. The hydrothermal method has simple process and good quality, but high production cost. The hydration method is relatively messy, but the production cost is low. To achieve mass production capacity, hydration processes are generally selected. There are many people in China who are studying the two processes,

So what is the reason why natural magnesium hydroxide can be used as fuel inhibitor?

It has a lower differentiation temperature, about 410°C. When the material is heated, the differentiation of magnesium hydroxide can absorb heat and extend the fire point.

The products of differentiation are water vapor and magnesium oxide. Water vapor can take away a lot of heat. Magnesium oxide produced by magnesium oxide manufacturers is a refractory material and can have a flame retardant effect. In addition, these two components are non-toxic and will not harm the human body. This is where it is superior to phosphorus and halogen flame retardants. The EU has restricted the use of phosphorus and halogen flame retardants. Its differentiation temperature is slightly higher than that of aluminum hydroxide. Therefore, magnesium oxide manufacturers can have a higher processing temperature during material processing.