No Halogen Ammonium Polyphosphate Flame Retardant Additives

Catalog NumberACMA00024451

CategoryAmmonium Polyphosphate

Description	Ammonium Polyphosphate
Appearance	white powder
Application	TF-211 features very good stain resistance for hot water. There is no stain remaining in the textile after hot water drops on the fabric. Suitable for all types of flame-retardant textile coatings, especially for hot-water-stain-resistance acrylic emulsion coatings.
Storage	In dry and cool place, keeping out of moisture and sunshine, shelf life two year.
Bulk Density	0.8-1.2 g/cm³
Content	P2O5 content ≥70%; N content ≥14%
Decomposition Temperature	≥260℃
Feature	hot water stain resistance
Moisture Content	≤0.5%
Notes	additives in fireproof fabric coating
Packaging	25kg/bag, 24mt/20'fcl without pallets, 20mt/20'fcl with pallets
Particle Size	about 18µm
pH	5.5-7.5
Viscosity	low and steady

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Case Study

Ethanolamine-Modified APP for High-Efficiency PP Flame Retardancy

Shao, Zhu-Bao, et al. Journal of Materials Chemistry A 2.34 (2014): 13955-13965.

Challenge: Overcome the low flame-retardant efficiency of standard Ammonium Polyphosphate (APP) in polypropylene (PP) while reducing smoke and heat release during combustion.
Solution: Developed ethanolamine-modified APP (ETA-APP) through ion exchange chemistry. This enhanced APP derivative was directly incorporated into PP at 35 wt% loading.
Key Results:
· Superior Fire Protection: Achieved LOI 35.0% and UL-94 V-0 rating; Reduced peak heat release rate by >77% vs. standard APP; Cut total smoke production by 88.5%.
· Enhanced Char Formation: Generated 195% more protective char than unmodified APP; Formed stable P-O-C/P-N-C structures improving char layer integrity.
· Triple-Action Mechanism: ETA-APP functions simultaneously as: acid source, blowing agent, and high-performance charring promoter.
Conclusion: Chemical modification of APP with ethanolamine creates a superior intumescent flame retardant for PP. ETA-APP delivers V-0 performance at 35% loading while dramatically suppressing heat, smoke, and fire growth - outperforming conventional APP in all key safety parameters. This modification strategy significantly enhances PP's fire safety profile.

Effective Flame Retardancy of Ammonium Polyphosphate/Triphenyl Phosphate in Unsaturated Polyester Resin

Pan, L. L., et al. Polymer degradation and stability 97.9 (2012): 1801-1806.

Challenge: Achieve effective flame retardancy in dicyclopentadiene (DCPD)-modified unsaturated polyester resin (UPR) while ensuring thermal stability and anti-dripping performance.
Solution: Combined ammonium polyphosphate (APP) with triphenyl phosphate (TPP) at 28.8 wt.% each to create a synergistic intumescent flame retardant (IFR) system.
Key Results:
· Critical Fire Safety: Achieved LOI 27.2 (vs. baseline 20.9); Secured UL-94 V-0 certification; Extended fire-resistant time to 26-34 minutes.
· Enhanced Char Formation: Stable residue 12.72% at 800°C; formed dense, continuous and complete barrier layer.
· Proven Synergistic Mechanism: APP decomposition releases NH3, reacting with phosphoric acid to create amide barrier compounds. Dual-action system physically blocks heat/oxygen transmission
Conclusion: The strategic combination of APP and TPP delivers superior fire protection for UPR. This synergistic system enables V-0 certification, significantly increases char yield, and creates robust thermal barriers - demonstrating APP's critical role as a multifunctional component in high-performance intumescent formulations.

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