Polyimide Film (Tape) 6051
Standard No.: JB/T 2726-1996
Applicable Range: The polyimide film is manufactured with the raw materials of
pyromellitic dianhydride and 4,4---diaminodiphenyl ether synthetic
resin, and adopted with doctor-blading process”. It can resist high
temperature and radiation as well as possess excellent dielectric
performance and physical performance. It is applicable to motor
Grade H, electric appliance insulation, and the electric insulating
materials for other purposes.
I. Technological requirement:
1. 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
orderly and have no breakage. And the film is provided in rolls.
2. Dimension
1) Thickness and allowable deviation: see the recommended thickness
in Table One. The products with other thickness can be supplied
according to the requirements of customer.
Table One
Unit: m
Standard Thickness | 25m | 40m | 50m | 75m | 100m | 125m | 175m | 200m |
Allowable Deviation | +2.5 | +4 | +5 | +7.5 | +8 | +8 | +8 | +8 |
-2.5 | -4 | -5 | -7.5 | -7 | -8 | -8 | -8 |
2) Width and length: supplied according to
requirements of customer
3) Performances shall conform to the stipulations in
Table Two
Table Two
No. | Index Description | Unit | Index value |
25m | 40 m | 50 m | 75 m | 100 m | 125 m | 175 m | 200 m |
1 | Density | kg/m3 | 1420±20 |
2 | Tensile strength | Longitudinal Transverse | MPa | ≥150 ≥130 |
3 | Elongation | Longitudinal Transverse | % | ≥60 |
4 | Heat contraction rate, 150℃ 400℃ | % | ≤1.0 ≤3.0 |
5 | Electrical operating frequency intensity | Averagevalue | MV/m | ≥150 |
Specific value | ≥100 |
6 | Surface resistivity at ,200℃ | | ≥1.0X1013 |
7 | Volume resistivity at ,200℃ | m | ≥1.0X1010 |
8 | Relative Dielectric Constant ,48-62Hz | — | 3.5±0.4 |
9 | Dielectric Loss Factor 48-62Hz | — | ≤4.0X103 |
10 | Long-term heat-resistance tem |