Brucite ore

Brucite [molecular formula: Mg (OH) 2] is a mineral rich in crystal. When heated to 340 ℃, it will decompose into MgOU and generate a lot of water vapor. MgO is a high temperature resistant material, and water can prevent the generation and spread of flame, which is the smoldering mechanism of magnesium hydroxide. At present, halogenated flame retardants are widely used, which produce harmful gases when a fire occurs, causing "secondary disasters". The inorganic flame retardant material Mg (OH) 2 is a "glass coating" formed on the surface, which can absorb smoke and corrosive gases, effectively solving the "secondary disaster". The starting and ending temperature span of Mg (OH) 2 dehydroxylation is small, and it is easy to concentrate the release of water, so the flame retardant effect is good. Mg (OH) 2 has three functions of flame retardancy, smoke suppression and filling, and is a popular flame retardant material.

Brucite fiber [Mg (OH) 2] is a kind of fibrous magnesium oxyhydroxide rare at home and abroad. It has the characteristics of white color, easy splitting and high lint yield. Its unique and excellent performance and low price make it a natural substitute for asbestos today. As a reinforcement and reinforcement material and additive, it is mainly used in asbestos free cement, rubber, braking, friction, sealing, thermal insulation, coating, textile, adsorbent, flame retardant and other products.

The chemical formula of fibrous brucite is Mg (OH) 2, and its theoretical chemical composition is: MgO: 69.11%, H2O: 30.89% 2. Chemical composition of fibrous brucite Chemical composition Chemical composition Chemical composition Chemical composition

1. Physical property Fiber type: longitudinal fiber Specific gravity: 2.44 Tensile strength: 892.4-1283.7Mpa, medium tensile strength Heat resistance: dehydration temperature: 400-500 ℃, melting point: 1960 ℃ Thermal conductivity: 0.131-0.213W/m.k Resistivity: Pv=5.9 × 10（Ω.cm） Ps=3.6-4.5 × 10（Ω.cm）

2. Chemical property Alkali loss: 2.03% Acid loss: 84.4%