SynTherm® – Insulating Materials Kapton® HN polyimide film

The polyimide film Kapton® HN consists of polycondensed aromatic Dianhydrid and aromatic Diamin.

Kapton® HN offers a unique combination of properties at the highest level, which are recommended for many applications in numerous branches. This PI films sustains it's excellent physical, electrical and mechanical properties within a wide temperature range. For short time it is also applicable for temperatures from -269 °C to +400 °C and is used in systems of class 240 °C. It has low flamability, is self-extinguishing and has no melting point. This PI-films offers a high chemical resistance - an organic solvent is unknown up to now. It has also a high resistance to beta and gamma radiation.

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Application

This polyimide film is especially for applications with high operating temperatures for which other films are not applicable.

Standards

  • UL listed, file-number E39505
  • UL 94-V-0
  • RoHS compliant acc. to 2011/EC

Delivery forms

Film thickness in µm:
25, 50, 75, 125
(Thickness 12.5 on request)

Kapton® HN is available:

  • in tapes starting with approx. 6 mm width
  • in rolls depending on material and thickness on request

Feathering:

  • depth approx. 1-12 mm, distance approx. 1-10 mm
  • approx. 10 mm up to 240 mm width and 0.25 mm thickness

Base

Polyimide film of polycondensed aromatic Dianhydrid and aromatic Diamin.

Technical data

Typical mechanical properties
Property Unit of measure Test method
Nominal thickness µm 25 50 75 125
Density g/cm³ 1.42 1.42 1.42 1.42 ASTM D-1505-90
Tensile strength longitudinal N/mm² 231 231 231 231 ASTM D-882-91
Tensile strength transversal N/mm² 231 231 231 231 ASTM D-882-91
Elongation at break longitudinal % 72 72 78 82 ASTM D-882-91
Elongation at break transversal % 72 72 78 82 ASTM D-882-91
Shrinkage at 150 °C % 0.17 0.17 0.17 0.17 ASTM D-5214-91
Typical electrical properties
Property Unit of measure Test method
Nominal thickness μm 25 50 75 125
Dielectric strength short term AC kV/mm 303 240 201 154 ASTM D-149-91
Volume resistivity Ω x m 1.5 x 10^17 1.5 x 10^17 1.4 x 10^17 1.0 x 10^17 ASTM D-257-91
Dielectric constant at 1 kHz 3.4 3.4 3.5 3.5 ASTM D-150-92
Dielectric loss factor at 1kHz 0.0018 0.0020 0.0020 0.0026 ASTM D-150-92