How to choose Flame-Retardant PP?

When purchasing friends are looking for Flame-Retardant PP Granules, they usually have such a problem: should we choose halogen-free flame retardant PP or should we choose halogen flame retardant PP?
The saltiness and lightness of a dish are directly related to the proportion of salt in the cooking process. The characteristics of Flame-Retardant Plastic Granules are also determined by the flame retardant. Polypropylene flame retardants can be divided into halogenated and halogenated. Halogen-containing flame retardant refers to flame retardants containing halogen elements such as Cl, Br, and F. Halogen-free flame retardants include phosphorus-based flame retardants, inorganic flame retardants, magnesium hydroxide, aluminum hydroxide, and zinc borate. Halogen-free flame retardants can also be divided into intumescent flame retardants and some special-purpose flame retardants. Correspondingly, flame retardant PP can also be divided into halogen-containing flame retardant PP and halogen-free flame retardant PP. Halogen-free, according to the requirements of the regulation IEC 6249-2-21: bromine and chlorine content is less than 900ppm, and the total content of bromine and chlorine is less than 1500ppm, it is halogen-free, which is often called low-halogen at work.
Flame-Retardant PP Granules
Flame-Retardant PP Granules
The main manifestations of the harmfulness of halogens in plastics:
1. A small amount of hydrogen halide will be released under processing conditions, which will corrode the machine or mold;
2. Hydrogen halide gas will be released during combustion. Hydrogen halide will dissolve in water and combine with water vapor in the air to form acid rain;
3. During the combustion process, on the one hand, a large amount of toxic gas is generated, and on the other hand, a large amount of dense smoke is generated. According to authoritative statistics, more than 80% of fatal accidents in fires are caused by thick smoke and toxic gases generated by material combustion .
Two. List of advantages of halogen-free and halogenated:
1. The advantages of halogen materials
In recent years, although halogen-free flame retardants have been developed with lightning speed, they have not denied the value of halogen-containing flame retardant products.
Halogen-containing flame retardants are currently the flame retardant products most used in plastic rubber and plastic materials, mainly because they are organic flame retardants, chemically inert, and have good compatibility with plastics. People have seen the good mechanical properties of halogen-containing flame retardant PP and the advantages of the low smoke generation of halogen-free flame retardant PP. Seeing the low addition of halogen-containing flame retardant PP flame retardants, I also appreciate the high halogen-free flame retardant GWIT. Seeing that halogen-containing flame retardant PP is easy to process, it also sees the continuous and renewable raw materials of halogen-free flame retardant PP.
People have seen that halogen-containing flame retardant PP has poor dyeability and is also suffering from the large color difference of halogen-free flame retardant PP. Many features cannot be replaced by each other. Everything is not absolute, there is halogen or no halogen, the selection of materials must be based on actual conditions. Requires accurate selection of materials
2. Advantages of halogen-free materials
Halogen-free flame retardant PP is considered as a "green" environmentally friendly product. Not only has the characteristics of low smoke, but also the advantage of lightweight. The density of 20% mineral synergistic halogen-containing flame retardant PP is about 1.30, and the density of ordinary flame retardant PP is about 1.05. The number of halogen-free products of the same quality is 1.24 times that of halogen-containing products. The advantages of halogen-free flame-retardant products at the same price are obvious.
Our company also has Mineral Filled PP Granules on sale, welcome to consult.

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