BOPP clear rough film for capacitors
Features:
Impulse a deep-rough treatment into single side or double sides on the surface of the film in order to form some certain concave ,then let the film be characteristic even roughness ,low dielectric loss, and high dielectric strength and good compatibility with kinds of Dipping Oil but with small Swelling.
Mainly used for Baptist paper composite membrane oil medium or total capacitor dielectric film Baptist Oil: such as high-voltage capacitor and capacitor for electric induction heating system,etc.
Specification:
Thickness: 6UM—15UM
■ Technical Characteristics （typical value）
|
|
Unit
|
Typical Values
|
Test conditions
|
|
Tensile strengh
|
TD
|
Mpa
|
140
|
Stretching speed 100mm/min @23℃，50％r.h.
|
|
TD
|
Mpa
|
200
|
|
Elongation at break
|
MD
|
%
|
150
|
|
TD
|
%
|
50
|
|
Thermal shrinkage
|
MD
|
%
|
3.5
|
15 min @ 120℃
|
|
TD
|
%
|
1.5
|
|
Space factor
|
Average
|
%
|
9.0（6～9μm）
10.0（10～18μm）
|
23℃
|
|
Limited
|
%
|
Max 15
Min 6
|
|
Surface roughness
|
μm
|
0.25—0.65
|
23℃
|
|
BDV X(DC)
|
V/μm
|
520
|
at 23℃ air
|
|
Relative permittivity
|
|
2.2
|
50Hz or 1kHz @23℃
|
|
Volume resistivity
|
Ω.m
|
5.0×1015
|
23℃
|
|
Dielectric dissipation factor(tan delta)
|
|
2×10-4
|
50Hz or 1kHz @23℃
|
■ Dimensions & specifications:
|
Thickness
|
MMV
|
μm
|
6
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
18
|
|
WMV
|
μm
|
5.5
|
7.4
|
8.3
|
9.2
|
10.2
|
11.0
|
11.9
|
12.8
|
13.7
|
16.5
|
|
Tolerance
|
Average
|
%
|
±3
|
|
Individual
|
%
|
±9
|
±7
|
±5
|
|
Final film roll width
|
mm
|
40～700 or to slit according to customers' reguest
|
|
Inner diameter
|
mm
|
76.2 , 152.4
|
Note：nusual specifications can be negotiated and specified additionally
