The Definition and use of Magnesium Hydroxide Flame Retardant Prepared Before

 Magnesium oxide formed by decomposition is also a good refractory material, which can also help to improve the fire resistance of synthetic materials, and it can also release water vapor as a smoke suppressant. Magnesium hydroxide is recognized as an excellent flame retardant in rubber and plastic industry with flame retardant, smoke suppression and filling triple functions. Widely used in rubber, chemical, building materials, plastics and electronics, unsaturated polyester and paint, paint and other polymer materials. Specifically, it can replace aluminum hydroxide by coating mine air guide duct, PVC core transport belt, flame retardant aluminum plastic board, flame retardant tarpaulin, PVC wire cable material, mine cable sheath, cable accessories, flame retardant, smoke and anti-static. excellent flame retardant effect. Magnesium hydroxide has better smoke suppression effect than similar inorganic flame retardants. Magnesium hydroxide is free from harmful substances during production, use and waste, and neutralizes acid and corrosive gases from combustion. For use alone, the dosage is generally 40%~60%.

It is necessary to make adequate preparations before use, which can not only improve the flame retardant effect of magnesium hydroxide flame retardant, but also make the whole process more safe.

1. flame retardant before sample test. Some samples need to be tested for flame retardancy. The main purpose is to test whether flame retardants can meet the specified flame retardant standards and also to test whether flame retardants are suitable for flame retardant materials, so as not to waste flame retardants.

 2. flame retardant should be properly cleaned the substrate surface, its surface had better not have oil, water traces, dust and so on.

 3. know how to use flame retardant, temperature and flame retardant time before flame retardant, so as not to waste flame retardant and material.

 with the development of polymer materials industry, fiber, resin, chemical industry, construction, transportation, rubber and other synthetic materials are increasing. however, most polymers are easily combustible materials. in many applications, flame retardants need to be added to polymer materials to prevent fire. magnesium hydroxide is an important inorganic flame retardant. it has many advantages, such as good thermal stability, no volatilization, no precipitation, no toxic gas, no pollution and so on. it is a green and environmentally friendly flame retardant. it is widely used in plastics, rubber, flame retardant and tobacco and resin polymer materials.

 but it is a kind of compound with very high surface property, the agglomeration between particles is serious, the compatibility with polymer is poor, the assembly of adding physical mechanics Yan Ying polymer performance, the amount of deterioration of processing performance, in practical use, it is often necessary to modify magnesium hydroxide before it can be used.

Flame retardant is an additive which can make the polymer not easy to catch fire and slow to burn. According to the classification of elements contained in flame retardants, it can be divided into organic and inorganic flame retardants. Organic flame retardants can be divided into halogen flame retardants (including chlorine and bromine) and nitrogen-based flame retardants; inorganic flame retardants include antimony compounds, phosphorus and phosphoric acid, boron compounds, magnesium hydroxide, zirconium compounds and bismuth compounds, etc. With the development of science and technology and the improvement of people's awareness of environmental protection, the research and application of flame retardants in today's world is developing towards non-halogenation.