What are the ways of magnesium hydroxide flame retardant?

2020-04-09 15:52:04

PP halogen-free flame retardant is a special environmental friendly flame retardant for pp. it is a halogen-free and intumescent flame retardant specially developed for PP. It is polymerized by phosphorus and nitrogen-containing chemicals with synergistic effect. It has good compatibility in polypropylene, little influence on the mechanical properties of plastics, and excellent processing stability in the processing process. PP special environmental friendly flame retardant is different from halogen-containing flame retardant. In the process of combustion, dense expanded carbon layer is produced to achieve the purpose of heat insulation and air flame-retardant insulation, without stimulating hydrogen halide gas and black smoke. It is an environmental friendly flame retardant.

So magnesium hydroxide flame retardant manufacturers tell you what are the current flame retardant ways?

1. The flame retardant carbonizes the combustibles so as to achieve the flame retardant effect. This kind of flame retardant mainly plays a role in the solid phase. This kind of flame retardant material is mainly phosphorus flame retardant (including organic phosphorus and inorganic phosphorus).

2. The flame retardant forms a non-volatile diaphragm under the combustion condition, which insulates the air to achieve the purpose of flame retardant. This flame retardant effect mainly plays a role in the liquid phase. This kind of flame retardant materials mainly include borate, halide, antimony oxide and phosphorus materials, or the substances generated by the interaction between these materials.

3. The decomposition products of flame retardant cut off the chain reaction of hydrogen and oxygen radicals to achieve the purpose of flame retardant. This flame retardant effect mainly plays a role in the gas phase. This kind of material mainly plays a role in gas phase. This kind of flame retardant material is mainly halide and antimony oxide.

4. Dispersion of combustion heat and dilution of combustible materials. This kind of flame-retardant materials are mainly zinc borate, aluminum hydroxide, magnesium hydroxide and other substances, mainly because of the decomposition of a large number of heat absorption, the resulting non combustible substances dilute the combustible gas to achieve the purpose of flame-retardant.