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Ammonium Polyphosphate: Modification Strategies and Synergistic Flame-Retardant Applications

Yina Liu1, Rongjie Yang1, Zhaolu Qin1

  • 1National Engineering Research Center of Flame Retardant Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China.

Polymers
|July 28, 2026
PubMed
Summary

Ammonium polyphosphate (APP) is an eco-friendly flame retardant, but its use is limited. This review explores APP modifications and synergistic systems to enhance its performance in intumescent flame-retardant applications.

Keywords:
ammonium polyphosphateflame-retardant mechanismsintumescent flame retardantmodificationsynergistic flame retardancy

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