Application of magnesium hydroxide flame retardant

With the development of the polymer material industry, there are more and more fibers, resins, chemicals, construction, transportation, rubber, and other synthetic materials in industries such as electronics. But most polymers are easily combustible materials. In many application fields, in order to prevent fires, flame retardants need to be added to the polymer material, and flame retardants must also be added to the adhesive. Magnesium hydroxide is an important inorganic flame retardant with good thermal stability, non volatilization, non precipitation, no toxic gas generation, and no pollution. It is a green and environmentally friendly flame retardant, widely used in plastic, rubber, flame retardant, smoke and resin polymer materials. But it is a compound with high surface polarity, with severe agglomeration between particles, poor compatibility with polymers, and poor processing performance. In practical use, modification of magnesium hydroxide is often required.

The commonly used methods for modification include surfactants or coupling agents, surface grafting, intercalation, microencapsulation, ultrafine methods, magnesium hydroxide whiskers, etc. The system composed of these modified magnesium hydroxide flame retardants can be used alone or together with other substances to adsorb aluminum hydroxide for better results when applied to adhesives. The specific addition and ratio through different adhesive experiments, production and experimental data, etc., are of great help in real life.

Flame retardants are mainly used in the fields of transportation, electronic and electrical equipment, furniture, and building materials. Adding flame retardants does not provide the material with complete resistance to intense fire, but it can still reduce the occurrence of fires and provide valuable escape time for people trapped in the fire. In a space on fire, due to the accumulation of flammable gases and heat, a phenomenon of "flash ignition" may occur - all flammable substances ignite simultaneously within 1-2 seconds. The emergence of flame retardants can effectively avoid this situation. Taking a cathode ray tube television with a plastic casing as an example, if it is not treated with flame retardancy, the escape time left for people in the event of a fire is less than 2 minutes. With the help of flame retardants, the escape time can be increased to over 30 minutes.