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Specifications
It processes heat-resistant, radiation resistant and excellent dielectric performance and applies to motor, etc.
Polyimide Film 6051
Standard No JB/T2726-1996
Application scope The polyimide film is produced by adopting ”Doctor-Blading Process”.It processes heat-resistant, radiation resistant and excellent dielectric performance and applies to motor grade H electrical insulation as well as the electric engineering insulating materials for other usage.
Technical specifications.
- Appearance Film surface is smooth, bright and clean. It shall have no defects, such as folding, tearing, particulate air bubble, pinhole, and any external impurity. Its edges shall be tidy and have no breakage. And the film is provided in rolls.
- Dimension
1) Thickness and acceptable tolerance see the recommended thickness in Table One. The products with other thickness can be supplied according to the requirements of customer.
Table One
| Thickness,um | 25 | 4 | 50 | 75 | 100 |
| Tolerance,um | +4 | +6 | +7 | +8 | +10 |
| -3 | -5 | -6 | -6 | -7 |
2) Width no less than 250mm, acceptable tolerance is +-1.6mm. Other tapes with different width can be supplied according to the customer’s requirement.
3) Length: according to the customer’s requirements.
- General properties (showed in Table Two)
Table Two:
| No. | Index Description | Unit | Index Value | |||||||
| 25μm | 40μm | 50μm | 75μm | 100μm | ||||||
| 1 | Density | kg/m3 | 1.420*103 ±0.02 | |||||||
| 2 | Tensile Strength | MD | Mpa | ≥135 | ||||||
| TD | ≥115 | |||||||||
| 3 | Elongation at break | MD | % | ≥35 | ||||||
| TD | ||||||||||
| 4 | Shrinkage,MD and TD | % | ||||||||
| 150°C | ≤1.0 | |||||||||
| 400°C | ≤3.0 | |||||||||
| 5 | Dielectric Strength | Average | MV/m | ≥150 | ≥130 | ≥110 | ||||
| Individual | ≥100 | ≥80 | ≥70 | |||||||
| 6 | Surface resistivity At 200°C | Ω | ≥1.0*1015 | |||||||
| 7 | Volume resistivity At 200°C | Ω.m | ≥1.0*1013 | |||||||
| 8 | Relative dielectric constant 48-62Hz | — | 3.5±0.4 | |||||||
| 9 | Dielectric loss factor 48-62Hz | — | ≤4.0*10-3 | |||||||
| 10 | Long-term thermal resistance index | — | ≥180 | |||||||
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