Century Multech, Inc.
Ammonium Polyphosphate phase II (CM-APP-201)
Application
- Used to prepare many types of high-efficiency intumescant coatings for the flameproof treatment of multi-story buildings, ships, trains, cables, etc.
- Used as the main flameproof additive for expanding-type flame retardants used in plastics, resin, rubber, etc.
- Used in plastics (PP, PE, PVC, etc.), polyester, rubber, expandable fireproof coatings.
- Flameproof treatment for woods, plywood, fiberboard, papers, and fibers.
- Can be used for PU applications (thermosets) and PU foam (rigid and/or flexible)
Benefits
- Halogen and formaldehyde-free, non-toxic and does not generate additional quantities of smoke due to the mechanism of intumescence
- Requires lower loadings compared to other halogen free systems
- Exhibits good processability, good retention of mechanical properties and good electrical properties in thermoplastic formulations
- In thermosets, can be used in conjunction with ATH, which allows a significant reduction of the total FR filler
- High polymerization degree ("n" value > 1000), higher thermal stability and lower water solubility than APP-I
Packing
- 25 kg net weight woven plastic / polyethylene bags
- 20 MT per 20 foot container
Chemical Properties
Target Value Typical Value
Appearance White powder White powder
P Content % (w/w) ≥ 31 31.5
N Content % (w/w) ≥ 14 14.5
Average Polymerization Degree, n ≥ 1000 1500
Viscosity (10% aqueous, 25 C) mPa.s ≤ 100 30
pH value (10% aqueous) 5.5-7.5 6.2
Acid Number mg KOH/g ≤ 1.0 0.3
Average Particle Size (D50) um 15-20 18
Particle Size <50 um % (w/w) ≥ 99 99.5
>100 um % (w/w) 0 0
Moisture Content % (w/w) ≤ 0.25 0.10
Solubility in Water (g/100ml, 25C) ≤ 0.5 0.3
Decomposition Temperature, C ≥ 270 280
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