FactoryXiangyuan(Tianjin)
Insulation Materials Co.,Ltd.
AddressNo.8 Baohei Road Koudong
Town Baodi District Tianjin City China
Zip Code301800
Tel 86-22-22566828
     86-22-22568680
Fax: 86-22-22567902
Mobile: 86-13752599392(王振波)
        86-13902126892(王作祥)
E-Mail: 13752599392@139.com


Branch FactoryXiangyuanShenzhen
Insulation Materials Co.,Ltd.

AddressBeside 107 County Road in Bao'an District,Shenzhen
Tel 86-755-27678318
Fax 86-755-29566119
BACK
Polyimide film

    Polyimide film is a special plastic film, has excellent mechanical properties, dielectric properties, flame does not melt at -195 ℃ - 280 ℃ under the conditions of long-term use. Because of its unique high performance main as the base dielectrics for Flexible Printed Circuits (FPC), Tape Automated Bonding (TAB), Pressure Sensitive Tape (PST), Insulation for Electric Motor (Insulation) etc., it is widely used in sophisticated product of military affairs, satellite navigation, digital product, H grade and F grade electric motors, computer and mobile phone etc.

Specifications:
    Thickness:12.5μm —— 225μm
    Width:6mm— 1000mm
    Executive Standard: JB/T 2726 —— 1996
    Appearance of flat and smooth, non-crease tear, particulate air bubble, pinhole. The indicators are better than any of the following: JB / T 2726 - 1996 in the provisions.

Thickness tolerance:

Nominal thickness

12.5μm
25μm
30μm
40μm
50μm
75μm
100μm

Tolerance

+1  -1
+2  -1
+2  -1
+2  -1
+2  -1
+5  -5
+10  -7
Physical performance table:

Properties

Test Items

Units

Thickness index

Test Condition

Test Method

Mechanical
Thickness
μm
12.5
25
50
75
20℃
ASTM D1505

Tensile Strength

Mpa
150
180
180
160
20℃
JB/T 2726—1996

Elongation

%
60
70
70
90
20℃
JB/T 2726—1996

Electrical

Dielectric Breakdown Voltage

MV/m
240
260
210
185
60Hz,20℃

JB/T 2726—1996

Dielectric Constant

--
3.2
3.2
3.2
3.2
1MHz,20℃

ASTM D150

Volume Resistivity

Ω.cm
>1010
>1010
>1010
>1010
500V,20℃

ASTM D257

Surface Resistance

Ω
>1013
>1013
>1013
>1013
500V,20℃
ASTM D257

Thermal

Coefficient of Thermal Expansion

ppm/℃
<27
<30
<35
<35
100~200℃
ASTM D5213-04

Heat Shrinkage

%
<0.03
<0.03
<0.05
<0.05
200℃,2hr
JB/T 2726—1996

Physical

Density

g/cm3
1.420±20
20℃
ASTM D1505
 
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