1.Halogen-free & low smoke cable sheathing compound ,
2.High flame retardant property
3.Less toxicity
4.Smooth surface
Application:
1.Coat layer for metro,
2.mine
3.electric power and ships
Specifications:
(a) Halogen-free & low smoke cable sheathing compound
(b) High flame retardant property
(c) Less toxicity
(d) Smooth surface
Brief Introduction:
1.These granules are produced base on polyolefin added with different halogen-free additive and special mix granulated process. The final jacking compound release less smoke, no halogen and low toxicity when burning also with good flame retardant properties and great processing ability. The cable extruded has smooth surface which properties can be compared with the similar products abroad.
Processing:
2.These granules can be extruded by general single screw extrusion machine. The specific extrusion speed and temperature should be adjusted according to different equipments.
Suggested screws:
1.Compression ratio, better between 2.1-2.3,
2.Length-to-diameter ratio ≥1:20.
Suggested processing temperature:
1.Zone 1: 105°C ,
2.Zone 2: 115°C ,
3.zone 3: 125°C ,
4.Zone 4: 130°C ,
5.Zone 5: 135°C,
6.Head Zone: 135°C.
Packaging:
Kraft paper bag outside inside Vacuum-packed with aluminum foil 25KG/bag.
Properties
NO. | Item | Unit | Test Method | Technical Requirement | Test Result |
1 | Original Tensile Strength | Mpa | GB/T 2951.11-2008 | ≥9.0 | 12.7 |
2 | Original Elongation at Break | % | GB/T 2951.11-2008 | ≥150 | 170 |
3 | After Hot air aging(100°C, 168h) |
| GB/T 2951.12 |
|
|
3.1 | Tensile Strength | Mpa | GB/T 2951.11-2008 | ≥9.0 | 13.1 |
3.2 | Variation of Tensile Strength | % | GB/T 2951.11-2008 | Within ±30 | 3.2 |
3.3 | Elongation at Break | % | GB/T 2951.11-2008 | ≥120 | 150 |
3.4 | Variation of Elongation at Break | % | GB/T 2951.11-2008 | Within ±30 | -12 |
4 | Thermal Deformation(90°C, 4h) | % | GB/T 2951.31-2008 | ≤50 | 15 |
5 | Impact Brittleness(-25°C)- Brittle Failure |
| GB/T 2951.14 | ≤15/30 | 0/30 |
6 | Volume Resistivity at 20°C | Ω.cm | GB/T 1410-2006 | ≥1.0x1010 | 1.8x1013 |
7 | Dielectric Strength | MV/m | GB/T 2951.51-2008 | ≥18 | 31 |
8 | Smoke Density |
| GB/T 8323.1 GB/T 8323.2 |
|
|
8.1 | flame |
| / | ≤250 | 219 |
8.2 | no flame |
| / | ≤100 | 75 |
9 | Oxygen Index | % | GB/T 2406.1 | ≥32 | 35.6 |
10 | Acid gas Content | mg/g | GB/T 17650.1 | ≤5 | 0 |
11 | PH |
| GB/T 17650.2 | ≥4.3 | 5.7 |
12 | Conductivity | μs/mm | GB/T 17650.2 | ≤10 | 0.46 |
13 | Toxicity Index |
| GB/T 17650.1 | ≤5 | 1.8 |
14 | Density | g/cm3 | GB/T 2951.13-2008 | ≤1.46 | 1.43 |
The above information is given based on our present state of knowledge,As there are numerous variation in industrial practice, the information as given is without obligation and liability of whatever on our part.
