
Basic Information
Product Name: PAPP (Piperazine Pyrophosphate)
Alias: PPP
CAS No.: 6645-22-3
Category: High Temperature Resistant Intumescent Flame Retardant
Brief Introduction
Piperazine Pyrophosphate (PAP/PPP) is a new type of high-efficiency phosphorus-nitrogen intumescent flame retardant. Compared with traditional APP systems, PAP has higher thermal stability, lower water absorption and better char-forming ability. It can form a dense and expandable carbon layer during combustion, achieving excellent fireproof and anti-dripping effects.

|
Testing Items |
Units |
PAPP |
|
Descriptions |
/ |
Non-coated |
|
Highly recommended Usage |
/ |
Glass fiber reinforced PA6 / PA66, PBT, PET, PP,PE ,PC/ABS |
|
Appearance |
|
White free-flowing powder |
|
Bulk density |
g/L |
≈500-700 |
|
P content |
%(w/w) |
≥22.0 |
|
N content |
%(w/w) |
≥9 |
|
Decomposition temperature TGA ONSET |
℃ |
≥275 |
|
PH Value |
(25℃,10% suspension) |
3~4 |
|
Moisture content |
%(w/w) |
≤0.5 |
|
Viscosity |
mPa·s(25℃, 10% suspension) |
≤20 |
|
Water solubility |
%(w/w)g/100mL |
≤0.5 |
|
Average Particle Size |
μm |
<12 |
|
Toxicity And Environmental Hazard |
— |
Not Detected |
Key Advantages
- Ultra‑high thermal stability, suitable for high-temperature processing
- Low water solubility, no migration and precipitation
- Fast intumescent carbon forming speed
- Low addition amount, high flame retardant efficiency
- Perfect compatibility with carbon source and gas source systems
Applications
- High‑grade steel structure intumescent fireproof coatings
- Polypropylene, polyurethane and polymer materials
- Outdoor weather-resistant flame retardant materials
- High requirement environmental friendly flame retardant formulas
Packing
25kg kraft paper bag, palletized packaging