BOPI Biaxial Oriented Polyimide Film (Tape)

 

 

PMDA  + ODA

Polyimide Film

　

       E248478

 

Property:
BOPI (Biaxial Oriented Polyimide film) is achieved by polycondensation of PMDA and ODA in strong polar solvents, through the process of film forming, and then being stretched and Oriented by biax during the course of imine at high temperature. BOPI film is a special kind of Polyimide film, however, as the result of Biaxial Orientation, BOPI film possesses higher physical, chemical, and electrical properties, which performs successfully in the wide range of temperature as low as -452F(-269c) and as high as +500F(+260c) and can be exposed at +752F(400c) in short time, besides, it is of atomic radiation resistant. BOPI film is currently the macromolecular compound with the best combined properties and the highest heat resistant.

Application:

1. Electric magnetic wire and cable coiling, motor slot liners, transformer interlayer insulation.

2. The backing material of pressure-sensitive adhesive tape, F46(FEP) tape.

3. The substrates of Flexible Printed Circuits Board (F-PCB).

Main Specifications

Item

Units

Values

Typical Values

25 micron

25 micron

1

Density

--

1.42 ± 0.02

1.42 ± 0.02

2

Tensile strength

MD

MPa

min 180

200

TD

min 170

190

3

Elongation at rupture

%

min 70

85

4

Shrinkage

150c

%

max 1.0

---

400c

max 3.0

---

5

Breakdown Strength(50Hz)

Average

MV/m

min 210

265

Individual

min 190

6

Surface Resistivity 200c

ohm

min 1.0x10e13

1.0x10e13

7

Volume Resistivity 200c

ohm.m

min 1.0x10e10

3.8x10e10

8

Dielectric Constant 50Hz

--

3.5 ± 0.4

3.2

9

Loss tangent  48~62Hz

--

max 4.0x10e-3

1.8x10e-3

 

             Standard No. Q/KYJ-003-2005

 

Applications:

  

Size:

Width: 1000mm,or Cutting to tapes; Thickness tolerance: +-10%
Min Qty: 200kgs each size in a lot. Packing: 25--50 Kg/carton.

 

          

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