| About |
|---|
| SI-LINK™ Crosslinkable Polyethylene DFDA-5451 NT is an ethylene-silane copolymer developed for use in power cable and control cable applications up to 1 kV. DFDA-5451 NT may be crosslinked after it is extruded with the DFDB-5480 NT catalyst masterbatch by exposing it to moisture after cable manufacture. If a black product is required for UV protection, the addition of DFDB-5410 BK carbon black masterbatch is recommended. Because the catalyst and carbon black masterbatches are shipped separate from the DFDA-5451 NT copolymer, the components are very shelf stable. Crosslinking of the total system only occurs after hot melt mixing of the components and exposure to moisture. Specifications When DFDA-5451 NT is crosslinked with DFDB-5480 NT, and optionally, DFDB-5410 BK, it meets typical 1 kV or less low voltage specifications such as those in: UL 854 ICEA: S-66-524 CSA RW90 IEC: 60502-1&& |
| Product Description | |
|---|---|
| Supplier | DOW |
| Generic | PE copolymerization |
| Material Status | Commercial: Active |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.922 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 1.5 | g/10min | ASTM D1238 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | 16.5 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 350 | % | ASTM D638 |
| Aging performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile strength retention rate | |||
| 7 days，121℃ | 90 | % | ASTM D638 |
| Elongation retention rate | |||
| 7 days，121℃ | 95 | % | ASTM D638 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| High temperature creep | |||
| 15 min，20N/cm²，150℃ | < 100 | % | ICEA T-28-562 |
| thermosetting | |||
| 15 min，0.2 MPa，200℃ | < 100 | % | IEC 60811-2-1 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Dielectric constant | |||
| 1 kHz | 2.30 | ASTM D150 | |
| Dissipation factor | |||
| 60 Hz | 2.5E-4 | ASTM D150 |
| Process Conditions | |||
|---|---|---|---|
| Extrusion | Nominal value | Unit | Test method |
| Drying temperature | 60 to 71 | °C | |
| Drying time | 4.0 to 6.0 | hr | |
| Melt temperature | 149 to 232 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Crosslinked polyethylene properties (95% DFDA-5451 NT, 5% DFDB-5480 NT) |
| 3. Measured on 14 AWG (2.1 mm²) wire with a 30 mil (0.75 mm) wall after 4 hours curing in 90°C water. Crosslinked polyethylene properties (95% DFDA-5451 NT, 5% DFDB-5480 NT) |
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