Amorphous thermoplastic PEI film
General properties:
- resistant to radioactive gamma radiation
- good mechanical properties
- self-extinguishing
- low smoke density
- good weathering resistance
- good hydrolysis stability
Physical properties:
- Density (ISO1183): 1,27 g/cm³
- Glass transition temperature (ISO11357): 215 °C
Mechanical properties: (sample thickness 50 µm)
- Tensile strength at 23°C (ISO527): 100 N/mm²
- Tensile elongation at 23°C (ISO527): 100 %
- Tensile modulus (ISO527): 2400 N/mm²
Electrical properties:
- Dielectric strength (IEC243): 180 kV/mm
Thermal properties:
- Long-term service temperature (UL746B): 170 °C
- Flammability (UL94): 0/50 VTM/µ
- Thermal expansion coefficient x 10³, T<Tg: 0,056 1/°K
- Thermal conductivity x 10² (DIN52612): 22 W/mK
Special forms: