Equal Type App Ammonium Polyphosphate 25um Eco Friendly
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|Appearance||White Powder||Base||N And P Base|
|PH Value||5.5-7.5||Average Partical Size (D50)||15-25UM|
|Production||APP Ammonium Polyphosphate||Application||PP|
Equal Type APP Ammonium Polyphosphate,
APP Ammonium Polyphosphate 25UM,
Eco Friendly APP Ammonium Polyphosphate
Clariant Exolit AP766 ADEKA’S STAPFP-2000 Equal Type APP Ammonium Polyphosphate
TF-241 mainly contains P and N, is a kind of halogen free environmentally friendly flame retardant for polyolefin. It has been developed especially for various PP. Containing acid source, gas source and carbon source, TF-241 takes effect by char formation and intumescent mechanism.
Ammonium polyphosphate (Phase II) is a non-halogen flame retardant. It acts as a flame retardant by the intumescence mechanism. When APP-II is exposed to fire or heat, it decomposes to polymeric phosphate acid and ammonia. The polyphosphoric acid reacts with hydroxyl groups to form a nonstable phosphate ester. Following dehydration of the phosphate ester, a carbon foam is built upon the surface and acts as an insulation layer.
The flame retardant PP treated by TF-241 has better water resistance. It still has good flame retardant (UL94-V0) performance after boiling 72 hours in 70℃ water.
PP(3.0-3.2mm) with 22% TF-241 can pass the tests of UL94 V-0 and GWIT 750℃ / GWFI 960℃.
PP (1.5-1.6mm) with 30% addition volume of TF-241 can pass the tests of UL94 V-0.
Technical Data Sheet / Specification:
|P content (w/w)||≥22.2%|
|N content (w/w)||≥17.5%|
|Bulk density||0.7-0.9 g/cm3|
|Average particle size ( D50)||15-25µm|
1. White powder, good water resistance.
2. Low density, low smoke generation.
3. Halogen-free and none heavy metal ions.
TF-241 is used in homopolymerization PP-H and copolymerization PP-B . It is widely used in
flame retardant polyolefin like steam air heater and household appliances.
Reference Formula for 3.2mm PP (UL94 V0):
|Material||Formula S1||Formula S2|
|Homopolymerization PP (H110MA)||77.3%|
|Copolymerization PP (EP300M)||77.3%|
Mechanical properties based on 30% addition volume of TF-241. With 30% TF-241 to reach UL94 V-0(1.5mm)
|Item||Formula S1||Formula S2|
|Vertical flammability rate||V0(1.5mm)||UL94 V-0(1.5mm)|
|Limit oxygen index (%)||30||28|
|Tensile strength (MPa)||28||23|
|Elongation at break (%)||53||102|
|Flammability rate after water-boiled (70℃,48h)||V0(3.2mm)||V0(3.2mm)|
|Flexural modulus (MPa)||2315||1981|
|Melt index (230℃,2.16KG)||6.5||3.2|
Packing : 25kg/bag, 24mt/20’fcl without pallets, 20mt/20’fcl with pallets. Other packing as request.
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