Industrial application of magnesium hydroxide

Industrial application of magnesium hydroxide

1. Magnesium hydroxide is an excellent flame retardant for plastic and rubber products. In terms of environmental protection, as a flue gas desulfurizer, it can replace caustic soda and lime as a neutralizer of acid containing wastewater. It is also used as an oil additive to prevent corrosion and desulfurization. In addition, it can also be used in the electronics industry, medicine, sugar refining, as insulation materials and the manufacture of other magnesium salt products.

2. Magnesium hydroxide buffer performance, reactivity, adsorption power, thermal decomposition performance are excellent, can be used as chemical materials and intermediates, but also a green flame retardant and additives used in rubber, plastics, fibers and resins and other polymer materials industry. Magnesium hydroxide in the field of environmental protection is mainly used as a flame retardant, acid wastewater treatment agent, heavy metal removal agent, flue gas desulfurization agent and so on.

3. The product can be used as a flame retardant or flame retardant filler added to polyethylene, polypropylene, polystyrene and ABS resin, has good flame retardant and smoke elimination effect, the addition amount is 40 to 20 parts. However, it is necessary to use anionic surfactants to treat the surface of the particles, which can use inexpensive advanced fatty acid alkali metal salts or alkyl sulfates and sulfonated maleate anionic surfactants, the amount is about 3%. The product is also used in the manufacture of magnesium salt, sugar refining, pharmaceutical industry, daily chemical industry and so on.

4. Magnesium hydroxide is a new type of filled flame retardant, which releases bound water when it is heated and decomposed, absorbs a large amount of latent heat to reduce the surface temperature of the synthetic material it is filled with in the flame, and has the effect of inhibiting polymer decomposition and cooling the generated flammable gas. The decomposed magnesium oxide is a good refractory material, which can also help improve the fire resistance of the synthetic material, and the water vapor released by it can also be used as a smoke suppressant. Magnesium hydroxide is recognized as an excellent flame retardant with flame retardant, smoke suppression and filling functions in the rubber and plastic industry.

Widely used in rubber, chemical, building materials, plastics and electronics, unsaturated polyester and paint, coatings and other polymer materials. Especially for the mine duct coated cloth, PVC whole core transport belt, flame retardant aluminum-plastic board, flame retardant tarpaulin, PVC wire and cable material, mining cable sheath, cable accessories, flame retardant, smoke and antistatic, can replace aluminum hydroxide, with excellent flame retardant effect. Compared with similar inorganic flame retardants, magnesium hydroxide has better smoke suppression effect.

Magnesium hydroxide has no harmful emissions during production, use and waste, and can also neutralize acidic and corrosive gases produced during combustion. When used alone, the dosage is generally 40% to 60%. It has good compatibility with the substrate resin, is an excellent flame retardant for thermoplastic resin and rubber products, and is often used as an additive flame retardant or flame retardant filler in adhesives. The reference amount is 40~200. In industry, it is used in the manufacture of magnesium salt, active magnesium oxide, pharmaceuticals, fine ceramics, thermal insulation materials, sugar refining, flue gas desulfurization agent, oil anti-corrosion additives, acid wastewater neutralizer, color TV picture tube cone glass coating.

5. The product is also used in the manufacture of magnesium salt, refining of sugar, pharmaceutical industry, daily chemical industry, etc. At the same time, the water vapor emitted by it can also be used as a smoke suppressant. Magnesium hydroxide is an excellent flame retardant in the rubber and plastic industry with three functions of flame retardancy, smoke suppression and filling.

6. The milky suspension of magnesium hydroxide is used in medicine as an acid-making agent and a laxative.