| About |
|---|
| Visico LE4423 / Visico LE4438 is a silane crosslinkable natural compound designed for low voltage power cables up to 6 kV. Visico LE4423 and Visico LE4438 is a combination of a Visico base material and a catalyst master batch which accelerates the moisture-induced crosslinking reaction. When properly mixed, addition of 5 parts of Visico LE4438 to 95 parts of Visico LE4423 , insulation with excellent thermo-oxidative stability, also in contact with copper as well as aluminium, is achieved.&& |
| Product Description | |
|---|---|
| Supplier | Borealis AG |
| Generic | LDPE |
| Material Status | Commercial: Active |
| Features | Low density |
| Availabilitys | Africa & Middle East ,Asia Pacific,Europe |
| Process Methods | Extrusion |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.923 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 1.0 | g/10min | ISO 1133 |
| ESCR(Environmental Stress Cracking Resistance) | |||
| 50 ℃, 10% non-ionic surfactant, F20 | > 96.0 | hr | IEC 60811-4-1/B |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shore D, 1 second | 52 | ISO 868 | |
| tensile strength | > 15.0 | MPa | ISO 527-2/250 |
| Tensile strain | |||
| fracture | > 300 | % | ISO 527-2/250 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Embrittlement temperature | < -76.0 | ℃ | ASTM D746 |
| thermosetting | IEC 60811-2-1 | ||
| Elongation under load: 200 ℃ | 60 | % | IEC 60811-2-1 |
| Permanent deformation: 200 ℃ | 0.0 | % | IEC 60811-2-1 |
| Aging performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Mechanical properties of air oven after aging | |||
| 135 ℃, 240 hr, rate of change in tensile strength | < 25 | % | IEC 60811 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume resistivity | > 1.0E+16 | ohms·cm | IEC 60093 |
| Dielectric strength | > 22 | kV/mm | IEC 60243-1 |
| Dielectric constant | |||
| 50 Hz | < 2.30 | IEC 60250 | |
| Dissipation factor | |||
| 50 Hz | < 5.0E-4 | IEC 60250 |
| Process Conditions | |||
|---|---|---|---|
| Extrusion | Nominal value | Unit | Test method |
| Barrel 1 zone temperature | 150 | °C | |
| Barrel 2 zone temperature | 170 | °C | |
| Barrel 3 zone temperature | 170 | °C | |
| Barrel 4 zone temperature | 170 | °C | |
| Nozzle temperature | 170 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Mixture 95:5 |
| 3. 0.20 MPa |
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