amorphous
Properties
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:
  • LITE I black

Typical applications

  • thermoplastic composites (reinforced with carbon fibers and glass fibres)
  • substrates for sensors