What are the advantages of magnesium hydroxide in the field of flame retardants?-2
Multifunctional composite advantages of Magnesium Hydroxide Flame Retardant
The unique value of Magnesium Hydroxide Flame Retardant in the field of flame retardancy is not limited to its excellent fireproof performance, but also reflected in its ability to simultaneously improve multiple physical and chemical properties of materials, and achieve synergistic optimization of flame retardancy and other properties. As a multifunctional additive,Magnesium Hydroxide Flame Retardant can not only give the substrate flame retardancy, but also significantly improve the mechanical properties, processing properties, thermal stability and appearance quality of the material. This "one dose, multiple effects" feature makes it very popular in engineering plastics and high-end rubber products.
In terms of mechanical property enhancement, Magnesium Hydroxide Flame Retardant is particularly outstanding. Unlike traditional flame retardants that often lead to a decrease in the mechanical strength of materials, the addition of an appropriate amount of Magnesium Hydroxide for flame retardant can improve the hardness and impact resistance of composite materials. Magnesium hydroxide also shows an excellent balance of properties in ethylene-vinyl acetate rubber (EVM)/nitrile rubber (NBR) blended vulcanizates. When the addition amount reaches 180 parts, the material not only obtains the best flame retardant effect, but also maintains good elasticity and durability. Its mechanism of action is that Magnesium Hydroxide for flame retardant particles can be evenly dispersed in the polymer matrix, effectively dispersing external forces as stress concentration points, and its high rigidity also improves the overall stiffness of the composite material.
The improvement of material processing properties by Magnesium Hydroxide for flame retardant is also worthy of attention. In the processing of plastics and rubber, magnesium hydroxide particles can act as an internal lubricant, reduce melt viscosity, and improve fluidity, thereby reducing energy consumption in processes such as extrusion and injection molding and improving production efficiency. Studies have confirmed that in the blending system of adding polybis(phenoxyphosphazene) and Magnesium Hydroxide for flame retardant to low-density polyethylene (LDPE), the melt flow rate increases significantly with the increase of PBPP content, indicating that the material is easier to process and shape. This processing aid effect is particularly important for the production of complex-shaped products. In addition, Magnesium Hydroxide for flame retardant has a low hardness (Mohs hardness of about 2.5), and the wear on screws, molds and other equipment during processing is much less than that of glass fibers or mineral fillers, which can significantly extend the service life of processing equipment.
