The conduction cooled stacks in the market are various in specification, such as Size, electrical design and weight etc, which would results in distinct range of wavelength and power output. LumiSource provides a variety of conductively cooled laser diode arrays. According to different clients’ needs,the number of assembled bars in stacks can be customized at most to 20 pieces.
plastic flame retardant PP
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.
