Crystalline Ⅱ ammonium polyphosphate with high polymerization degree (APP-N)

Product description：
Ammonium polyphosphate, its molecular formula is ((NH4)n+2PnO3n+1, has high polymerization degree and belongs to crystal phase II, It is water insoluble straight-line polymer. The product has high content of phosphorus and nitrogen, strong heated stability and chemical stability, low water solubility and humility, nearly neutral Ph value.

Product appearance：
White free-flowing powder (reflectance of color ≥94, average particle size;10-55um).

Application：
-Expanding fire-refractory coating;
-Fire-refractory building board, coiled material;
-Thermal plasticity polyolefin
and unsaturated arene plastic;
-polyurethane foam;
-Epoxy resin and unsaturated resin;
-Cable and rubber;
-Plastic material of electron device;
-Fiber fabric.

Product packing：
Materials: Fiber drum, kraft bag, woven PVC bag (polyethlene liner).
Net weight: 20kg,25kg,40kg(in accordance with clients' requirements)

Quality index

Content of crystal phase II APP	% (w/w)	≥99.0
Content of phosphorus	% (w/w)	≥31.0
Content of nitrogen	% (w/w)	≥14.0
PH,10%slurry,25oC	-	≥6.0
Content of water	% (w/w)	≤0.20
Thermal decomposition onset	°C	≥285
average particle size (in accordance with client's requiements)	um	15
Density	g/cm3	1.9
Bulk density	g/cm3	0.7
Viscosity,10%slurry,25oC	mpa.s	≤80
reflectance of color	-	≥94
Degree of polymerization	n	≥1500
Solubility,25oC	g/100mlH2O	≤0.20

 

 

Inaddition,we can supply many types of APP, please contact us for more details!