Ammonium polyphosphate treated by Silane

(APP203)
Molecular formula : (NH₄PO₃)_n   n>1000
CAS No.: 68333-79-9   
EINECS No.: 269-789-9
Model No.: APP203
Product description:
Silane modified APP-II(APP203) is a Flame Retardant based on phosphorus /nitrogen synergism, it is treated by Silane based on APP201 with special method.APP203 is different from APP201 in such features as bellow:
-Reduce solubility in water;
-Reduce viscosity in water;
-Obviously improve dispersibility and compatibility with polymers and resins;
-Increase fluidity of powder;
-Improve thermal expansion efficiency during inflaming retarding process and insulation performance.
 
Specification :

Specification		Value
Appearance		White powder
P Content	%(w/w)	>30
N Content	%(w/w)	>13
Density(25℃)	g/cm3	~1.9
Solubility	g/100ml H2O, 25℃	~0.10
pH value	( 10% aqueous suspension )	5.5-7.5
Viscosity	(10%suspension, 25oC)	<20
Average particle size	µm	~15
Particle size(<50 µm)	%(w/w)	>97

Applications:
APP203 can be used for all applications that APP201 is suitable. APP203 has lower solubility in water and viscosity.These features make APP203 is suitable for water-fast intumescent system in polymers(PU, PU,PBT,etc.) and paints.
Use:
-Fiber materials( paper, wood, fireproof textile);
-All kinds of polymers ( sunproof, waterproof, or fireproof outdoor materials);
-Fire-refractory building board, coiled material;  
-Epoxy resin and unsaturated resin;
-Cable and rubber;
-Plastic material of electron device;
-Textile
Packing : 25kg woven bag with plastic liner.