Polyimide Film is a good HN grade insulating material. It is widely used for insulation purposes in electrical appliances, which are used in a special environment. To use the polyimide film means reducing the volume and weight of the electrical appliances while retaining the same output or increase the capacity without increasing in frame size. It can also prolong the service life of electrical appliances and increase their reliability. Its long-term working temperature is under 200 °C.
The following properties of Polyimide Film ensure its good performance under extreme temperature or other conditions.
- Has a Good property of insulation and mechanism.
- Good temperature-resistant property and wide performance temperatures range. It can be used under temperature from –60 °C to +250 °C for a long period and –269 °C to +400 °C for a short period without changing its electrical and mechanical properties.
- Good chemical stability. It resists most organic solvents.
- Excellent flame retardant property.
- Good radian-resistant property.
- It can be combined with many other materials. When combined with a fluorine resin, its characters of wet and corrosion resistance are greatly improved.
- Wire & Cable
- Flexible Printed Circuits
- Bar Code Labels
Polyimide Film with FEP coated (FH film)
1 mil Thick Polyimide Film No adhesive 0.5 mil FEP coating on one side of HN Polyimide
120 Gauge film structure consisting of a 25 µm (1 mil) base polyimide film with a 2.5 µm (0.1 mil) coating of FEP on both sides.
Polyimide HN film coated with fluoropolymer resin, imparts heat sealability, provides a moisture barrier and enhances chemical resistance.
Polyimide is synthesized by polymerizing an aromatic dianhydride with an aromatic diamine. It has excellent chemical resistance and there are no known organic solvents for the film. It does not melt and can be used at both high and low-temperature extremes. Kapton® Polyimide Films can be used in a variety of electrical and electronic uses: wire and cable tapes, formed coil insulation, substrates for printed circuit boards, motor slot liners, magnet wire insulation, transformer and capacitor insulation, magnetic and pressure-sensitive tapes and tubing.
- Density, ASTM D542-90
- Moisture Absorption at Equilibrium, 50% RH; 23°C
- Water Absorption at Saturation, 98% RH; 23°C
- Water Vapor Transmission
- Film Tensile Strength at Yield, MD, ASTM D882-91, 3% yield point. Orientation not specified
- Film Elongation at Break, MD, ASTM D882, Orientation not specified. Value at 200°C (390°F) is 80%
- Secant Modulus, ASTM D882
- Tear Strength Test, ASTM D1004-90, N Graves (Initial) value
- Elmendorf Tear Strength MD, ASTM D1922-89, Orientation not specified
- Film Tensile Strength at Break, MD, ASTM D882, Orientation not specified
- Electrical Resistivity
- Dielectric Constant
- Dielectric Strength
- Dissipation Factor
- Cable Wrapping
- Magnet Wire Wrapping
- Automotive Manifolds
- Automotive Diaphragms
- Heat Sealable Bags
- Heater Circuits
|Film Type||Thickness Nominal (micron)*||Thickness Tolerance||Available Width||Nominal Unit Weight (g/m2)||Nominal Length Factor (m/kg)||Nominal Area Factor (m2/kg)|
|Min. (micron)||Max. (micron)||Min. (mm)||Max. (mm)|
* Special thickness is also available upon request
Mechanical and Electrical Properties
|Item||Unit||Value for each thickness||Method|
|Tensile Strength, Min||MD||MPa||135||135||135||135||135||JB2726-96|
|Dielectric Strength at 50 Hz, Min||Average||KV/mm(MV/m)||150||150||150||150||150||JB2726-96|
|Volume Resistance at 200 °C, Min||Ohm.m||1x 1010||1x 1010||1x 1010||1x 1010||1x 1010||JB2726-96|
|Dielectric Constant at 50Hz||3.1-3.9||3.1-3.9||3.1-3.9||3.1-3.9||3.1-3.9||JB2726-9h6|
|Dielectric Dissipation Factor 50Hz, Max||0.004||0.004||0.004||0.004||0.004||JB2726-96|
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We also Supply Polyester Film.