Product description: 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.
Advantage: 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:
| Specification |
TF-241 |
| Appearance |
White powder |
| P2O5 content (w/w) |
≥52% |
| N content (w/w) |
≥18% |
| Moisture (w/w) |
≤0.5% |
| Bulk density |
0.7-0.9 g/cm3 |
| Decomposition Temperature |
≥260℃ |
| Average particle size ( D50) |
about 18µm |
Characteristics :
1. White powder, good water resistance.
2. Low density, low smoke generation.
3. Halogen-free and none heavy metal ions.
Application:
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%
|
|
Lubricant(EBS)
|
0.2%
|
0.2%
|
|
Antioxidant (B215)
|
0.3%
|
0.3%
|
|
Anti-dripping (FA500H)
|
0.2%
|
0.2%
|
|
TF-241
|
22%
|
22%
|
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)
|
|
V0(1.5mm)
|
V0(1.5mm)
|
|
Flexural modulus (MPa)
|
2315
|
1981
|
|
Melt index (230℃,2.16KG)
|
6.5
|
3.2
|
Packing : 25kg/bag, 22mt/20’fcl without pallets, 17mt/20’fcl with pallets. Other packing as request.
Storage: in dry and cool place, keeping out of moisture and sunshine, shelf life two years.
