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SynTherm® – Insulating Materials

SynTherm® H (Polyimide film)

SynTherm®  H is a polyimide film manufactured with the raw materials of pyromellitic dianhydride and 4.4-diaminodiphenyl ether synthetic resin.

Attributes

SynTherm® H offers a unique combination of properties at the highest level, which are recommended for many applications in numerous branches. SynTherm® H 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 it is used in systems of class H. It has low flamability, is self-extinguishing and has no melting point. SynTherm® H offers a high chemical resistance - an organic solvent is unknown up to now. It has also a high resistance to beta and gamma radiation.

Application

SynTherm® H is especially for applications with high operating temperatures for which other films are not applicable.

Standards
  • UL listed(E358562), UL 94 V-0, UL RTI >200 °C
  • RoHS compliant according to 2011/65/EU
Delivery forms

Film thickness in µm:
25, 50, 75, 100, 125, 175, 200

SynTherm® H can be supplied:

  • in slit rolls from widths of 6 mm (depending on thickness)
  • in rolls approx. width 500 mm up to 1000 mm


Feathering:

  • depth approx. 1 - 12 mm, distance approx. 1 - 10 mm
  • from widths of 10 to 240 mm and thickness on request
Base

Pyromellitic dianhydride and 4.4-diaminodiphenyl ether synthetic resin

Technical data
Typical mechanical properties
Nominal thickness  Thickness tolerance  Density  Shrinkage at 150 °C  Tensile strength longitudinal  Tensile strength transversal  Elongation at break longitudinal  Elongation at break transversal 
Unit of measure              
µm  25 50 75 100 125 175 200
±10 ±10 ±10 ±10 ±10 ±10 ±5
g/cm³  1,42 1.42 1.42 1.42 1.42 1.42 1.42
≤1 ≤1 ≤1 ≤1 ≤1 ≤1 ≤1
N/mm²  ≥150 ≥150 ≥150 ≥150 ≥150 ≥150 ≥150
N/mm²  ≥130 ≥130 ≥130 ≥130 ≥130 ≥130 ≥130
≥60 ≥60 ≥60 ≥60 ≥60 ≥60 ≥60
≥60 ≥60 ≥60 ≥60 ≥60 ≥60 ≥60
Typical electrical properties
Nominal thickness  Dielectric strength short term AC  Specific surface resistivity  Volume resistivity  Dielectric constant (AC 50 Hz, 25 °C)  Dielectric loss factor (AC 50 Hz, 25 °C) 
Unit of measure              
μm  25 50 75 100 125 175 200
kV/mm  ≥150 ≥150 ≥150 ≥150 ≥150 ≥120 ≥120
Ω/m  ≥1x10^13 ≥1x10^13 ≥1x10^13 ≥1x10^13 ≥1x10^13 ≥1x10^13 ≥1x10^13
Ω.m  ≥1x10^10 ≥1x10^10 ≥1x10^10 ≥1x10^10 ≥1x10^10 ≥1x10^10 ≥1x10^10
  3.5±0.4 3.5±0.4 3.5±0.4 3.5±0.4 3.5±0.4 3.5±0.4 3.5±0.4
  ≤4x10^-3 ≤4x10^-3 ≤4x10^-3 ≤4x10^-3 ≤4x10^-3 ≤4x10^-3 ≤4x10^-3

SynTherm® is a registered trademark of SynFlex.