Flame-Retardant PP Granules Factory
As a, share with you. Flame retardant materials include organic flame-retardant materials and inorganic flame retardant materials. Current flame retardant materials are materials that can achieve flame retardant effects after adding flame retardants.
Generally speaking, there are various types of flame retardants, including organic flame retardants and inorganic flame retardants. Organic flame retardants have good flame retardant effects and relatively few additives. However, organic flame retardants have the disadvantages of large smoke generation and release of toxic gases during combustion. Inorganic materials have the advantages of being non-toxic, smokeless, non-volatile, and cheap, but there are a lot of additives in them.
The flame retardant is a polymer synthetic material booster. The flame retardant can be used to perform flame retardant treatment on the polymer material, so as to prevent the material from burning and prevent the fire from spreading.
Analysis of advantages and disadvantages of common flame retardants
In recent years, with the increase in the output of plastic products and the improvement of safety standards, flame retardant materials have become more widely used. 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 generate hydrogen chloride and prevent smoking. In addition, inorganic flame retardant materials are non-toxic, non-corrosive, and inexpensive.
1.Halogen Flame Retardant
Halogen flame retardants not only have the largest output, but also the most widely used. The material to which the flame retardant is added can release hydrogen halide and obtain free radicals during the combustion process, thereby preventing the transmission of the combustion chain, thereby generating low-active free radicals to slow 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. They are welcomed by the market and widely used in automobiles, packaging, textiles and other industries.
2. Phosphorous Flame Retardant
Inorganic phosphorus-based flame retardants mainly include phosphate, red phosphorus, etc. The more widely used is red phosphorus, which is a better flame retardant, but in practical applications, red phosphorus flame retardant materials are easily oxidized and release harmful Highly toxic gas, dust generated by combustion can easily lead to an explosion, and there is a certain danger in resin mixing and molding processing. Therefore, phosphorus-based flame retardant materials are subject to certain use restrictions. The improved red phosphorus flame retardant is added with a metal hydroxide, which solves the problem of polymer material toxicity to a certain extent.
3.Nitrogen Flame Retardant
Commonly used varieties are melamine, melamine cyanurate (MCA), etc., often need to add synergists, nitrogen/phosphorus is the most commonly used synergistic flame retardant system, mainly used in PA, PU, PO, PET, PS, PVC and other resin.
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