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CHANGSHU IPACE IMP. & EXP. CO., LTD

Polyimide film(H type)

Polyimide film Polyimide film is a good H grade insulating material. It is widely used for insulation purpose in electrical appliances which are used in special environment. To use the polyimide film means reducing 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 the 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.

1. Good property of insulation and mechanism.

2. Good temperature-resistant property, wide performance temperature 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 mechanic properties.

3. Good chemical stability. It resists most organic solvents.

4. Excellent flame retardant property.

5. Good radian-resistant property.

6. Can be combined with many other materials. When combined with fluorine resin, its characters of wet and corrosion resistance are greatly improved.

Specifications

Film Type Thickness Nominal micron(mil)* Thickness Tolerance Available Width Nominal Unit Weight (g/m2) Nominal Area Factor (m2/kg)
Min. (micron) Max. (micron) Min. (mm) Max. (mm)
CH250 25(1mil) 23 28 8 1000 35.7 28
CH300 30 27 33 8 1000 43 23.3
CH400 40 37 43 8 1000 57 17.5
CH500 50(2mil) 47 53 8 1000 71.4 14
CH750 75(3mil) 72 78 8 1000 107.5 9.3
CH1000 100(4mil) 96 104 8 1000 143 7
CH1250 125(5mil) 120 130 8 1000 178.5 5.6
CH1500 150(6mil) 145 155 8 1000 212.8 4.7
CH1750 175(7mil) 168 182 8 1000 250 4

* Special thickness is also available upon request


Mechanical and Electrical Properties

Item Unit Value for each thickness Method
25 micron 50 micron 75 micron 100 micron 125 micron
Tensile Strength, Min MD MPa (kg/in) 139 (9) 139 (18) 139 (27) 139 (36) 139 (45) JB2726-96
TD 120 (7.8) 120 (15.6) 120 (23.4) 120 (31.2) 120 (39)
Elongation, Min % 40 40 40 40 40 JB2726-96
Dielectric Strength at 50 Hz, Min Average KV/mm 150 150 150 150 150 JB2726-96
Individual 100 100 100 100 100
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 JB2726-96
Dielectric Dissipation Factor 50Hz, Max   0.004 0.004 0.004 0.004 0.004 JB2726-96

Package and Supply

Thickness 25 micron 50 micron 75 micron 100 micron 125 micron
Length* 2000 m (max) 750 m 500 m 330 m 300 m

Width Core Type Core Size
7-20mm Plastic 3 inch (76 mm)
20-1000mm Paper 3 inch (76 mm)

* The film is packed in rolls.
* Special Length available upon request