Clariant Exolit AP766 ADEKA’S STAPFP-2000 Equal Type APP Ammonium
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
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.
1, Top standard and experienced factory
2, High reliable for more than 10 years
3, standardized after sales service
4, High quality, Certificated and competitive price
* Prompt reply and professional team to provide good product
* Factory inspection support
* Sample is free for customer and will be retained for them
After -sales service
* Logistics information monitoring and following
* Documents service
for more information pls add Wechat: +0086 15928691963