The key role of magnesium hydroxide in the cable industry
Magnesium hydroxide is an excellent environment-friendly flame retardant, which can avoid some safety problems in the process of cable use. Its principle is to absorb a lot of heat through decomposition, and the resulting water can play a role in isolating the air, magnesia generated after decomposition is a good refractory, cutting off the supply of oxygen, preventing the flow of combustible gas, and helping to improve the resin's ability to resist flame, and the thermal decomposition temperature of magnesium hydroxide is as high as 350℃, so magnesium hydroxide as a flame retardant has excellent flame retardant performance. And it will not produce corrosive halogen and harmful gas in use, and it has the characteristics of smokeless, non-toxic, non-dripping, non-volatile, long-lasting effect and so on.
Benefits of magnesium hydroxide forFire-retardant cable：
▲ The particle size distribution is uniform, it can be well compatible with the substrate, and has little effect on the mechanical properties of the products.
▲ The content of the product is high, and the flame retardancy of magnesium hydroxide for cable is good.
▲ The product has good activation effect, high degree of activation and good fusion.
▲ The product has a large filling quantity, which can greatly reduce the cost of cable materials.
▲ The processing temperature is high (the decomposition temperature of magnesium hydroxide is 330 °C, which is 100 degrees higher than that of aluminum hydroxide). The higher extrusion speed can improve the plasticizing effect and the surface glossiness of the products.
▲ The price of magnesium hydroxide for cable is low, and the test shows that it can achieve the same flame retardant effect, and the use of Mg (0H) 2 is half of the price of Al (0H) 3.
