In the realm of advanced material science, phosphorus-nitrogen (P-N) based flame retardants are gaining significant traction for their superior performance and favorable environmental profiles. Among these, Ammonium Polyphosphate (APP II) from NINGBO INNO PHARMCHEM CO.,LTD. stands out as a leading example of a highly effective phosphorus-nitrogen flame retardant mechanism for a wide range of applications in plastics and coatings.


The unique synergy between phosphorus and nitrogen elements in APP II enables a multi-faceted approach to flame retardancy. In the condensed phase, the phosphorus component promotes char formation, creating a dense, insulating barrier on the material's surface that prevents heat transfer and oxygen ingress. Concurrently, the nitrogen component contributes to the release of non-flammable gases, which dilute the combustible gases in the flame phase, effectively reducing the fire's intensity.


This dual-phase mechanism makes APP II exceptionally versatile and effective in various polymer systems, including polyolefins like polypropylene, thermosets such as epoxies and unsaturated polyesters, and flexible materials like polyurethane foams. Furthermore, its excellent compatibility allows for seamless integration into diverse coating formulations, from intumescent paints for structural steel to textile back-coatings.


NINGBO INNO PHARMCHEM CO.,LTD. ensures that our APP II boasts high thermal stability, crucial for high-temperature processing of plastics and for maintaining long-term performance in end-use applications. Its low water solubility also contributes to the durability of the flame retardant effect, making it suitable for products exposed to environmental moisture.


For manufacturers looking to buy P-N flame retardant for plastics or coatings, NINGBO INNO PHARMCHEM CO.,LTD. offers a halogen-free solution that aligns with global environmental standards, including REACH and RoHS. This commitment to safety and sustainability is a core value, enabling our partners to produce safer, greener products without compromising on fire protection.


By understanding the intricate workings of phosphorus-nitrogen flame retardants for plastics and coatings, companies can make informed decisions to enhance their material performance. Partner with NINGBO INNO PHARMCHEM CO.,LTD. to leverage our expertise and premium APP II products, ensuring your materials meet the highest standards of fire safety and environmental responsibility.