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HF-902K is an advanced ammonium polyphosphate-based flame retardant specifically engineered for polypropylene and other polyolefin applications. This environmentally friendly formulation complies with RoHS and REACH regulations while delivering superior flame retardant performance.
Technical Features:
Halogen-free intumescent system (phosphorus-nitrogen synergy)
Triple-action mechanism (acid source/gas source/carbon source)
Forms protective expanded carbon layer during combustion
Achieves UL94 V-0 rating at 1.5mm thickness
High thermal resistance: GWIT 750°C / GWFI 960°C
Low smoke emission and toxicity
Minimal mold corrosion
Free from anti-dripping agents
Performance Benefits:
• Excellent flame retardant efficiency at 20-25% loading
• Maintains key mechanical properties of base polymers
• Suitable for both natural and colored compounds
Typical Applications:
Electrical enclosures and components
Automotive interior trim parts
Industrial polyolefin products
Consumer goods requiring flame retardancy
| Appearance | Average particle size | Water solubility | Water content | True Density | pH | Bulk density | Decomposition temperature | Phosphorus content | Nitrogen content | Cr, Cd, Pb, Hg, As | Whiteness |
| White powder | 8~11 μm | / | ≤ 0.5 % | 1.8 ± 0.1 g/cm³ | 5.5~7.0 | 0.4~0.7 g/cm³ | ≥ 240℃ | 21~24% | 20-22% | ≤20ppm | / |
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