Magnesium hydroxide halogen-free flame retardants have the following advantages:
Environmentally friendly and non-toxic: Magnesium hydroxide is a halogen-free and environmentally friendly flame retardant. It does not emit any harmful substances during production, use or disposal. It does not release toxic gases such as dioxins, meeting the requirements of modern industry for environmental protection and safety.
Excellent flame retardant performance: Magnesium hydroxide flame retardant absorbs a large amount of heat through thermal decomposition, generating magnesium oxide and water vapor, effectively reducing the surface temperature of the material and suppressing combustion. Its flame-retardant effect is stable and it can continuously exert its flame-retardant function under high temperature, high humidity and other harsh conditions.
Good smoke suppression effect: Magnesium hydroxide has excellent smoke suppression performance and can reduce the smoke hazard in fires. Compared with halogen-containing flame retardants, materials using magnesium hydroxide flame retardants produce very little smoke during combustion, significantly enhancing visibility at the fire scene and facilitating personnel evacuation and rescue.
Strong heat resistance: The thermal decomposition temperature of magnesium hydroxide can reach up to 340℃, which is 100℃ higher than that of aluminum hydroxide. This enables plastics with added magnesium hydroxide to withstand higher processing temperatures, which is conducive to accelerating the extrusion speed, shortening the molding time, and improving production efficiency.
Low cost: The price of magnesium hydroxide is relatively low, and the filling amount is high, which helps to reduce the production cost of the product. Meanwhile, its raw material sources are extensive and the supply is stable, which is conducive to large-scale production.
Versatility: Magnesium hydroxide not only has flame-retardant properties but also serves as a filler and smoke suppressant. It can be used as a filler in polymer materials to improve the performance of the materials. In addition, the magnesium oxide produced after the combustion and dehydration of magnesium hydroxide is a refractory material, which can further enhance the fire resistance of the material.
