VICTREX? PEEK POLYMER 381G
High performance thermoplastic material, unreinforced PolyEtherEtherKetone (PEEK), semi crystalline, depth filtered granules for specialty extrusion processes, standard flow, colour natural/beige.
Wire coating, extrusion of filaments, minitubes, films. Chemically resistant to aggressive environments, suitable for sterilization for medical and food contact applications.
Material Properties |
Physical | Nominal Value | Unit | Test Method |
Density (Crystalline) | 1.30 | g/cm3 | ISO 1183 |
Spiral Flow 1 | 12.0 | cm | Internal Method |
Molding Shrinkage 2 |
|
| ISO 294-4 |
Across Flow | 1.3 | % |
|
Flow | 1.0 | % |
|
Water Absorption (Saturation, 23°C) | 0.45 | % | ISO 62 |
Water Absorption Saturation (100°C) | 0.55 | % | ISO 62 |
Mechanical | Nominal Value | Unit | Test Method |
Tensile Modulus (23°C) | 4000 | MPa | ISO 527-1 |
Tensile Stress (Yield, 23°C) | 98.0 | MPa | ISO 527-2 |
Tensile Strain (Break, 23°C) | 25 | % | ISO 527-2 |
Flexural Modulus (23°C) | 3800 | MPa | ISO 178 |
Flexural Stress |
|
| ISO 178 |
3.5% Strain, 23°C | 125 | MPa |
|
23°C 3 | 165 | MPa |
|
125°C | 85.0 | MPa |
|
175°C | 19.0 | MPa |
|
275°C | 12.5 | MPa |
|
Compressive Stress |
|
| ISO 604 |
23°C | 125 | MPa |
|
120°C | 70.0 | MPa |
|
Impact | Nominal Value | Unit | Test Method |
Charpy Notched Impact Strength (23°C) | 6.0 | kJ/m2 | ISO 179/1eA |
Charpy Unnotched Impact Strength (23°C) | No Break |
| ISO 179/1U |
Notched Izod Impact Strength (23°C) | 5.4 | kJ/m2 | ISO 180/A |
Unnotched Izod Impact Strength (23°C) | No Break |
| ISO 180/1U |
Hardness | Nominal Value | Unit | Test Method |
Shore Hardness (Shore D, 23°C) | 84.5 |
| ISO 868 |
Thermal | Nominal Value | Unit | Test Method |
Deflection Temperature Under Load |
|
|
|
1.8 MPa, Unannealed | 152 | °C | ISO 75-2/Af |
1.8 MPa, Annealed 4 | 160 | °C | ISO 75-2/A |
Glass Transition Temperature |
|
| ISO 11357-2 |
Onset | 143 | °C |
|
Midpoint | 150 | °C |
|
Melting Temperature | 343 | °C | ISO 11357-3 |
CLTE - Flow |
|
| ISO 11359-2 |
< 143°C | 45 | ppm/K |
|
> 143°C | 120 | ppm/K |
|
CLTE - Average |
|
| ISO 11359-2 |
< 143°C | 55 | ppm/K |
|
> 143°C | 140 | ppm/K |
|
Thermal Conductivity |
|
| ISO 22007-4 |
23°C 5 | 0.29 | W/m/K |
|
23°C 6 | 0.32 | W/m/K |
|
RTI Elec | 260 | °C | UL 746B |
RTI Imp | 180 | °C | UL 746B |
RTI Str | 240 | °C | UL 746B |
Electrical | Nominal Value | Unit | Test Method |
Volume Resistivity |
|
| IEC 60093 |
23°C | 1.0E+16 | ohms·cm |
|
125°C | 1.0E+15 | ohms·cm |
|
275°C | 1.0E+9 | ohms·cm |
|
Dielectric Strength |
|
| IEC 60243-1 |
0.0500 mm | 190.0 | kV/mm |
|
2.00 mm | 23.0 | kV/mm |
|
Dielectric Constant |
|
| IEC 60250 |
23°C, 50 Hz | 3.20 |
|
|
200°C, 50 Hz | 4.50 |
|
|
Dissipation Factor (23°C, 1 MHz) | 3.0E-3 |
| IEC 60250 |
Comparative Tracking Index | 150 | V | IEC 60112 |
Flammability | Nominal Value | Unit | Test Method |
Glow Wire Flammability Index (2.0 mm) | 960 | °C | IEC 60695-2-12 |
Fill Analysis | Nominal Value | Unit | Test Method |
Melt Viscosity (400°C) | 300 | Pa·s | ISO 11443 |
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