1. DESCRIPTION
This is a heat sealable film which is made by polyimide film with one side or double side FEP coated. When combined with FEP resinthe Polyimide film remains excellent heat and electrical properties. This kind of film is widely used in high temperature wire manufacturing.
2. FEATURES
high temperature resistance,
high dielectric strength
heat sealable properties
radiation retardant
3. APPLICATIONS
Wire & cable insulation when used in severe environment such as high temperatureunder water and oil.
Turn insulation in motors and generators
4. TECHNICAL PARAMETER
|
Item |
Unit |
Standard Value |
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|
25um +4/-3 |
50um +7/-6 |
75um +8/-6 |
100um +10/-7 |
150um
|
250um +8/-8 |
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|
Density |
g/cm3 |
1.40±0.020 |
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|
Tensile strength MD TD |
Mpa |
≥135 |
≥130 |
≥100 |
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|
MD TD |
% |
≥35 |
≥60
|
≥90 |
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|
Shrinking 150℃ 30min 400℃ 30min |
% |
≦1.0 ≦3.0 |
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|
Breakdown voltage Average Individual |
Mv/m |
≥180 |
≥160 |
≥145 |
≥120 |
≥110 |
≥100 |
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|
Surface Resistivity (200℃) |
Ω |
≥1.0×1013 |
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|
Volume Resistivity (200℃) |
Ω.m |
≥1.0×1010 |
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|
Dielectric Constant |
|
3.5±0.4 |
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|
Dissipation Factor |
|
≦4.0×10-3 |
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