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