2mil Corona-resistant(CR) Polyimide Film/Kapton Film

 1.it is produced with adopting advanced dispersion techni put the inorganic nano-particles into the film, so it canimprove greatly the performance of corona-resistant corrosion.

 2.it is used widely in high power frequency control motor,and it can increase the reliability and life of such motor withusing it to make corona-resistant insulating layer around theenvelope and main insulating layer.

excellent properties:

 a.corona-resistant property;

 b.other properties better than pi film.

application:

 it is used widely in high power frequency control motor.

 1.wind power generator, variable frequency motor, tractionmotor and electrical rotating machines;

 2.high-voltage transformer;

 3.magnetic wire wrap;

 4.super high-voltage cable insulation.

no.

item

unit

test result

test method

1

thickness

mil

2

test method

provided

by the

gb/t.

2

width

mm

663

3

density

kg/m3

1407

4

relative permittivity

(23°c,50hz)

—

3.7

5

dielectric loss factor

(23°c, 50hz)

—

2.8×10-3

6

volume resistivity

(200°c,±2°c/1h)

Ω•m

8.8×1011

7

surface resistivity

(200°c,±2°c/1h)

Ω

3.7×1014

8

shrink-age

150°c,

vertical

%

0.09

horizontal

0.01

400°c,

vertical

2.46

horizontal

-0.54

9

water absorbability

(23±2°c,)/

rh(93±2°c,)%/24h

%

1.0

10

tensile strength

vertical

mpa

179

horizontal

158

11

elongation ratio

vertical

%

76

horizontal

94

12

ac electric strength

v/um

291

13

combustion characteristic

class

vtf0

14

corona resistant

(155°c,±2°c,)

individual value

—

40min, 55min

1h10min, 1h20min,

1h38min, 1h55min,

2h8min, 2h25min,

2h40min

test method

provided

by the 

gb/t24122-2009.

mean value

1h38min

our factory competitive advantages

*well competitive prices  and high  control      *prompt delivery  

*customer's design and logo are welcome               *fit for gifts and premiums

*earth-friendly products                                                    *in a variety of design 

*small order acceptable                                                    *oem accepted

packing

the film should be provided in rolls and wound up to the pipe core,each roll is well packed and loaded with plastic bag to be placedinto dry and clean box.