VICTREX XPI? 150 Polymer
VICTREX XPI? 150 polymer is a high-performance PolyEtherEtherKetone (PEEK), semi crystalline thermoplastic material, in granule feedstock format primarily for wire extrusion processing.
Winding wire insulation for electric motor applications requires good mechanical and electrical performance across a range of temperatures and potentially chemically aggressive environments. VICTREX XPI? 150 polymer can meet many of these requirements such as (where specific properties are quantified in the below table);
? Long-term thermal stability in high electric field strength rotating machines
? Extruded coating provides superior electrical performance with reduced number of faults per wire length vs. enamelled equivalents
? Good ductility for demanding wire forming & resistance to thermal cycling / conductor expansion
? Excellent wear resistance
? Mechanical strength and dimensional stability
? Excellent chemical resistance to a broad range of ATF, oils and cooling fluids.
Material Properties |
Physical | Nominal Value | Unit | Test Method |
Density (Crystalline) | 1.30 | g/cm3 | ISO 1183 |
Melt Mass-Flow Rate (MFR) (400°C/2.16 kg) | 6.5 | g/10 min | ISO 1133 |
Water Absorption (Saturation, 23°C) | 0.45 | % | ISO 62 |
Mechanical | Nominal Value | Unit | Test Method |
Tensile Stress (Yield, 23°C) | 102 | MPa | ISO 527 |
Flexural Modulus |
|
| ISO 178 |
23°C | 4000 | MPa |
|
80°C | 3800 | MPa |
|
120°C | 3700 | MPa |
|
160°C | 1000 | MPa |
|
Flexural Stress |
|
| ISO 178 |
Yield, 23°C | 164 | MPa |
|
Yield, 80°C | 130 | MPa |
|
Yield, 120°C | 102 | MPa |
|
Yield, 160°C | 36.0 | MPa |
|
Compressive Stress (23°C) | 125 | MPa | ISO 604 |
Thermal | Nominal Value | Unit | Test Method |
Glass Transition Temperature (Onset) | 143 | °C | ISO 11357-2 |
Melting Temperature | 343 | °C | ISO 11357-3 |
Thermal Conductivity |
|
| ISO 22007-4 |
23°C 1 | 0.29 | W/m/K |
|
23°C 2 | 0.32 | W/m/K |
|
Electrical | Nominal Value | Unit | Test Method |
Volume Resistivity (23°C) | 1.0E+16 | ohms·cm | IEC 60093 |
Dielectric Constant (23°C, 1 kHz) | 3.20 |
| IEC 60250 |
Dissipation Factor (23°C, 1 MHz) | 3.0E-3 |
| IEC 60250 |
Breakdown Voltage 2000V/s in air, 6.4mm opposing electrodes 3 |
|
| ASTM D149 |
23°C, 100.0 μm | 16.6 | kV |
|
23°C, 150.0 μm | 21.4 | kV |
|
23°C, 200.0 μm | 25.4 | kV |
|
Breakdown Voltage 500V/s in air, 6.4mm opposing electrodes 3 |
|
| ASTM D149 |
23°C, 100.0 μm | 15.7 | kV |
|
23°C, 150.0 μm | 19.9 | kV |
|
23°C, 200.0 μm | 23.0 | kV |
|
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