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Magnesium hydroxide is an inorganic flame retardant filler for polymer matrix composites with good application prospects. Like aluminium hydroxide, magnesium hydroxide flame retardant has the advantages of non-toxicity, low smoke, stable chemical properties and no secondary pollution, because it relies on chemical decomposition to absorb heat and release water when heated. However, compared with halogen-containing organic flame retardants, in order to achieve a considerable flame retardant effect, the filling amount should generally reach more than 50%. Because magnesium hydroxide is inorganic, the compatibility between the surface and the polymer matrix is poor. Such a high filling amount, if it…

It is widely used in metallurgy, smelting, high-grade magnesia bricks, refractories and moisturizing materials. It is also widely used in rubber, rubber sheet, rubber products, pharmaceutical industry, food industry, plastic sheet accelerator, plasticizer of FRP and surface coating paint of silicon steel sheet, filler and reinforcing agent of paper production, ball polishing agent, leather treatment agent, insulating material, grease, dye, etc. Ceramics, desiccants, resins and flame retardants are used as fillers and reinforcing agents for rubber and plastic products, soft magnetic ferrites, adhesives, chemical industry as catalysts and raw materials for manufacturing other magnesium compounds, enamels, ceramics, glass, etc….