Development Trend of Flame Retardant in Flame Retardant Materials-Yuetong Molybdenum

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Development Trend of Flame Retardant in Flame Retardant Materials

Release time:

2024-01-25

There are various types of flame retardants, including organic flame retardants and inorganic flame retardants. Organic flame retardants have good flame retardant effect and fewer additives. However, organic flame retardants have the disadvantages of large amount of smoke and release of toxic gases in combustion. Inorganic materials have the advantages of non-toxic, smokeless, non-volatile and cheap, but there are a lot of additives. The flame-retardant material includes an organic flame-retardant material and an inorganic flame-retardant material. The current flame-retardant material is a material capable of achieving a flame-retardant effect after adding a flame retardant.

Development Trend of Flame Retardant in Flame Retardant Materials

In recent years, with the increase of the output of plastic products and the improvement of safety standards, flame retardant materials are widely used in 1.. Generally speaking, flame retardant materials can be divided into organic flame retardant materials and inorganic flame retardant materials. Among them, organic flame retardant materials are mainly halogen additives, and inorganic materials not only have a certain flame retardant effect, but also produce hydrogen chloride and prevent smoke. In addition, inorganic flame retardant materials are non-toxic, non-corrosive and inexpensive. The consumption of inorganic flame retardant materials in the United States, Japan and other countries exceeds 60%, however, the consumption of inorganic flame retardant materials in China is less than 10%.

1, halogen flame retardant halogen flame retardant not only the largest output, but also the most widely used. The material added with the flame retardant can release hydrogen halide during the combustion process and obtain free radicals, thereby preventing the transmission of the combustion chain, thereby generating free radicals with low activity to slow down the combustion. Halogen flame retardants are generally used in thermoplastic materials and thermosetting materials. They are not only compatible with polymer materials, but also easy to use. Therefore, they are welcomed by the market and are widely used in automobiles, packaging, textiles and other industries.

2. Phosphorus flame retardant Inorganic phosphorus flame retardant mainly includes phosphate, red phosphorus, etc. Red phosphorus is widely used. Red phosphorus is a good flame retardant. However, in practical application, red phosphorus flame retardant materials are easy to oxidize and release harmful and toxic gases. Dust generated by combustion is easy to cause explosion. There are certain risks in resin mixing and molding. Therefore, phosphorus flame retardant materials are subject to certain use restrictions. The improved red phosphorus flame retardant is added with metal hydroxide, which solves the problem of polymer material toxicity to a certain extent.

3. Commonly used nitrogen-based flame retardants include melamine, melamine cyanurate (MCA), etc. Synergistic agents are often added. Nitrogen/phosphorus is the most commonly used synergistic flame retardant system, which is mainly used in PA, PU, PO, PET, PS, PVC and other resins. Melamine cyanurate is a nitrogen-containing halogen-free environmentally friendly flame retardant, especially suitable for PA6 and PA66 without filler, with powder and granular forms. When the flame retardant polyamide foam with this product burns, the carbon foam layer formed protects the polymer and insulates oxygen.

4. Metal oxide flame retardant Metal oxide flame retardant mainly adds inorganic elements with essential flame retardancy to the flame-retardant substrate in the form of simple substance or compound, fully mixed with high polymer in a physically dispersed state, and plays a flame retardant role in gas phase or condensed phase through chemical or physical changes. Aluminum hydroxide is the most popular flame retardant for inorganic hydroxides, mainly used for elastomers, thermosetting resins and thermoplastics with processing temperatures below 200°C. Aluminum hydroxide flame retardant plastic in the flame smoke is a prominent advantage. Magnesium hydroxide is a kind of inorganic flame retardant with better thermal stability, which is still stable over 300 ℃. It is widely used in many artificial rubber, resin, including engineering plastics and other resins under high temperature processing. It plays the role of flame retardant and smoke elimination in the polymer system. With ATH compound use, complement each other, its flame retardant effect is better than alone.

2. the development status at home and abroad, flame retardant is a polymer synthetic material booster, the use of flame retardant can be flame retardant treatment of polymer materials, so as to avoid material combustion and prevent the spread of fire, to promote the synthetic material with smoke, self-extinguishing and flame retardant.

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