Polyimide film 40μm

 

 

 

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Table of properties 

 

No.

Items

Specification Analysis result
1 Appearance

The surface of the film shall be smooth and free from bubbles, holes, contaminations and other defects, cutting edge tidy, not damaged.

Pass
2 Thickness Nominal μm +4.0 40+3%

 

No.

Property

Unit

Standard value

Testing value

1

Tensile strength

MD

MPa

≥135

172

TD

≥115

140

2

Elongation at break

MD

%

≥35

68

TD

≥35

65

3

Dielectric strength

20±5ºC/68F

Kv/mm

≥130

218

4

Volume resistance, at 200±5ºC/392F

Ω·m

≥1.0×1010

≥1.3×1010

 

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