Melamine polyphosphate
[CAS# 218768-84-4]

Identification

• Classification: Inorganic chemical industry >> Inorganic salt >> Phosphides, metal phosphoric acid, metaphosphoric acid, hypophosphorous acid and pyrophosphate
• Name: Melamine polyphosphate
• Synonyms: Melapur M 200; Melapur 200
• Molecular Formula: C₃H₆N₆.(H₃PO₄)_n
• CAS Registry Number: 218768-84-4
• EC Number: 606-855-1
• SMILES: C1(=NC(=NC(=N1)N)N)N.OP(=O)(O)O

Discovery and Applications

Melamine polyphosphate is a chemical compound developed in the late 20th century, known for its application as a flame retardant in various industrial materials. It is a polymeric form of melamine phosphate, which is derived from melamine—a compound originally used in the production of laminates and plastics.

The discovery of melamine polyphosphate was driven by the need for effective flame retardants in materials that are exposed to high temperatures and fire hazards. Its primary application is in the field of fire safety, where it is used to enhance the flame resistance of a wide range of products. The compound works by promoting the formation of a protective char layer on the surface of materials when exposed to fire. This char layer acts as a barrier, reducing the material's flammability and slowing the spread of flames.

Melamine polyphosphate is particularly valuable in the plastics industry, where it is used to improve the fire resistance of thermoplastics and thermosets. It is added to materials such as polyurethanes, polycarbonates, and epoxy resins. In these applications, melamine polyphosphate helps to meet stringent fire safety regulations and standards by enhancing the overall fire performance of the finished products.

In addition to its use in plastics, melamine polyphosphate is employed in the production of textiles and coatings. It is used to treat fabrics to improve their fire retardancy, making them suitable for applications in upholstery, curtains, and protective clothing. The compound's effectiveness in these applications contributes to increased safety and compliance with fire safety standards.

Melamine polyphosphate is also of interest in the field of construction. It is used in the formulation of fire-resistant building materials, such as gypsum boards and insulation panels. The compound helps to enhance the fire safety of buildings by providing additional protection against fire hazards.

Despite its beneficial properties, the use of melamine polyphosphate must be managed with considerations for environmental and safety factors. Research into its long-term effects and potential alternatives continues to ensure that its use remains safe and sustainable.

References

2016. Kinetics of melamine phosphate thermal decomposition in DSC studies. Journal of Thermal Analysis and Calorimetry, 126(2).
DOI: 10.1007/s10973-016-5705-2

2022. Natural silk fibroin based flame retardant LbL-coating for Dongba paper. Cellulose, 29(17).
DOI: doi.org/10.1007/s10570-022-04832-y

2018. Literature Review. Fire Retardancy Behavior of Polymer/Clay Nanocomposites.
DOI: 10.1007/978-981-10-8327-3_2