Phosphorus-Nitrogen Synergy: Combines the flame-retardant effects of both phosphorus and nitrogen, which act together to suppress combustion and promote char formation.
Endothermic Decomposition: MPP decomposes at higher temperatures, releasing non-flammable gases like ammonia and phosphoric acid, which help cool the material and prevent the spread of fire.
Promotes char Formation: Helps form a stable, protective char layer, acting as a physical barrier against heat and flame propagation.
Smoke Suppression: Reduces the generation of toxic smoke and gases during combustion.
Advantages:
Halogen-Free & Eco-Friendly: Non-toxic and safer for human health and the environment compared to halogenated flame retardants.
High Thermal Stability: Effective at elevated temperatures, making it suitable for various engineering plastics and materials.
Enhanced Flame Retardancy: Offers excellent flame-retardant performance even at low loadings.
Good Compatibility: Can be used with a wide range of polymers, including polyamides, polyesters, and polycarbonates.
Applications:
Plastics & Polymers: Especially effective in polyamides (PA6, PA66), polycarbonate (PC), and polyesters (PET, PBT).
Electrical & Electronics: Used in components like connectors, casings, and circuit boards, offering flame retardancy and electrical safety.
Automotive Parts: Suitable for flame-retardant automotive interior parts and under-the-hood components.
Consumer Goods & Appliances: Flame retardant in home appliances, mobile devices, and other electronic products.
Processing Considerations:
Particle Size & Dispersion: Fine particles improve dispersion and enhance flame retardant performance in polymers.
Loading Levels: Typically added at 5–15%, depending on the polymer matrix and the desired flame retardant properties.
Thermal Stability: Suitable for materials processed at temperatures below 300°C, as higher temperatures may lead to decomposition or loss of performance.