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Polypropylene film for capacitors
  • Polypropylene film for capacitors
  • Polypropylene film for capacitors

Polypropylene film for capacitors

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Details

1. Features 

With the imported super-high purity electric homopolymerize PP resin , it is formed through biaxial stretching, which has features of good uniformity of roughness film, easy rolling and high operation field strength; meanwhile, as for the corona treatment to the roughness film, the wrapped capacitor has small dielectric loss and high insulation resistance. 

2. Applications 

It can be used in rough film capacitor including the manufacturing of medium and high pressure capacitor and capacitor transformer etc. in the reactive power compensation, equalizing, filtering, coupling of the transmission and transforming system; also due to the corona treatment to the rough film, it can be used for metalized film capacitor such as the DC support and filtering capacitor etc.    

3. Film size and specification 

     Specification   

9L

10L

11L

12L

13L

14L

15L

16L

17L

18L

Thickness

 

Mechanism   method

MMV

μm

9.0

10.0

11.0

12.0

13.0

14.0

15.0

16.0

17.0

18.0

Weighing   method

WMV

μm

8.3

9.2

10.2

11.0

11.9

12.8

13.7

14.6

15.5

16.4

Average   thickness deviation

(WMV)

%

±1%

Film   reel width of the finished products

mm

(40—700)±2,   or slit as customers' request 

Note: Special specifications can be negotiated additionally.

4. Representing method of thickness

The nominal value can use the central value of the thin film thickness (integer value such as 3, 10, 15, etc) plus the mantissa (one decimal place) or the their codes. We use Weight method (WMV) to value the MPP film thickness; and that of RPP/RRPP/MRPP film are valued through Mechanism method (MMV) (Ten-layer method)

Number

Letter

Number

Letter

-0.4

B

+0.1

V

-0.3

C

+0.2

W

-0.2

D

+0.3

X

-0.1

E

+0.4

Y

0

L

+0.5

Z

Example: MPP8D refers to 7.8μm in WMV thickness; MRPP12L refers to 12.0 μm in MMV thickness.

5. Technical Features (typical value)

Item

Unit

 

Typical   value  

Test   standard

 

Density

g/㎝3

0.905±0.005

GB/T 13542.2-2009/5

Melting   point

170±2

GB/T 13542.2-2009/22.1

Tensile   strength

 

Vertical   MD

MPa

150

 GB/T   13542.2-2009/25

Horizontal   TD

MPa

300

GB/T 13542.2-2009/25

Elongation

 

Vertical   TM

%

150

GB/T 13542.2-2009/25

Horizontal   TD

%

50

GB/T 13542.2-2009/25

Elasticity   modulus

 

Vertical   MD

MPa

1600

GB/T 13542.2-2009/25

Horizontal   TD

MPa

3000

GB/T 13542.2-2009/25

Porosity

 

Average   value

 

%

8.0±3.0

GB/T 13542.2-2009/35

Heat   shrinkage

 

Vertical   MD

%

3.0

GB/T 13542.2-2009/23

Horizontal   TD

%

1.0

Tension   infiltration

 

mN/m

38

GB/T 13542.2-2009/10

Surface   roughness

 

μm

0.25±0.15

GB/T 13542.2-2009/8

Dielectric   intensity (average)

BDV(DC) (Average)

V/μm

520

GB/T 13542.2-2009/18.2.2

Friction   coefficient (Static / Dynamic)

 


(0.7—0.9)/(0.6—0.8)

GB/T 10006-1988

Relative   dielectric constant

 


2.2

GB/T 13542.2-2009/17.1

Volume   resistivity

 

Ω.m

1016

GB/T 13542.2-2009/16.1

Dielectric   loss factor

 


2.0×10-4

GB/T 13542.2-2009/17.1

 ◆ The above parameters are only for your reference as they are not technical agreement.

6. Electroweak point  

1.jpg

7. Chemical features 

Ash content

<30ppm

Chlorinity

<10ppm  

Water content

<50ppm  

8. Tensile strength curve 

2.jpg

3.jpg

9. Relation curve between the dielectric strength and film thickness

4.jpg

10. Packing

After slitting and inspection, every roll of the thin film will be packed with PP plastic bags and drying agent to avoid the powder, particles and moisture. Both the two sides of the roll are fixed with foam spacer, support pad and end cap to avoid squeezing during the transportation, and are packed, baled and stacked with cartons, which will be twisted with plastic thin film to avoid powder, particle and moisture.

11. Storage

The film roll should be stored without any forms of shake in a dry and cool place with the temperature no more than 30℃; it cannot be stored for too long time, otherwise the using property of the film will be influenced; once it is stored over 1 year, please re-evaluate all properties of the film roll.

12. Labelling

 A label related to the basic information of the film roll is in and on the package carton, see the picture:    

标签9.2.png

Biaxial stretching PP rough film for RPP/RRPP capacitor

1. Features

With the imported super-high purity electric homopolymerize PP resin , it is formed through biaxial stretching, which has features of good uniformity, even porosity, high operation field strength, low dielectric loss, good compatibility with the impregnating oil of multiple kinds of capacitors, easy for rolling.      

2. Applications 

It is mainly used for compound or full-film immersion oil capacitor, including the manufacturing of medium and high pressure capacitor and capacitor transformer etc. in the reactive power compensation, equalizing, filtering, coupling of the transmission and transforming system;    

3. Film size and specification 

Specification     

9L

10L

11L

12L

13L

14L

15L

16L

17L

18L

Thickness

Mechanism method

MMV

 

μm

9.0

10.0

11.0

12.0

13.0

14.0

15.0

16.0

17.0

18.0

Weighing method

WMV

 

μm

8.3

9.2

10.2

11.0

11.9

12.8

13.7

14.6

15.5

16.4

Average thickness deviation (WMV)

%

±1%

Film reel width of the

finished products

mm

(40—1200) ±2, or can slit as customers' request

 

IDD0

 

mm

Φ76.2

See the picture

11111111111111.jpg

ODD

 

mm

Φ260

Note: Special specifications can be negotiated additionally. 

4. Representing method of thickness

The nominal value can use the central value of the thin film thickness (integer value such as 3, 10, 15, etc) plus the mantissa (one decimal place) or the their codes. We use Weight method (WMV) to value the MPP film thickness; and that of RPP/RRPP/MRPP film are valued through Mechanism method (MMV) (Ten-layer method)

Number

Letter

Number

Letter

-0.4

B

+0.1

V

-0.3

C

+0.2

W

-0.2

D

+0.3

X

-0.1

E

+0.4

Y

0

L

+0.5

Z

Example: MPP8D refers to 7.8μm in WMV thickness; MRPP12L refers to 12.0 μm in MMV thickness.

5. Technical featurs (typical value)

Item

Unit

Unit

Typical value   

Test standard

Rough   film (non-corona)

RRPP, RPP

Density

g/3

0.905±0.005

GB/T 13542.2-2009/5

Melting point

170±2

GB/T 13542.2-2009/22.1

Tensile strength

Vertical   MD

MPa

150

 GB/T   13542.2-2009/25

Horizontal   TD

MPa

300

GB/T 13542.2-2009/25

Elongation

Vertical   TM

%

150

GB/T 13542.2-2009/25

Horizontal   TD

%

50

GB/T 13542.2-2009/25

Elasticity modulus

Vertical   MD

MPa

1600

GB/T 13542.2-2009/25

Horizontal   TD

MPa

3000

GB/T 13542.2-2009/25

Porosity

Average value

%

9.0±3.0

GB/T 13542.2-2009/35

Heat shrinkage

Vertical   MD

%

3.0

GB/T 13542.2-2009/23

Horizontal TD

%

1.0

Surface roughness

RRPP

μm

0.35±0.15

GB/T 13542.2-2009/8

RPP

μm

0.25±0.15

GB/T 13542.2-2009/8

Dielectric intensity (average)

V/μm

520

GB/T 13542.2-2009/18.2.2

Friction coefficient (Static / Dynamic)


(0.7—0.9/0.6—0.8

GB/T 10006-1988

Relative dielectric constant


2.2

GB/T 13542.2-2009/17.1

Volume resistivity

Ω.m

1016

GB/T 13542.2-2009/16.1

Dielectric loss factor


2.0×10-4

GB/T 13542.2-2009/17.1

  • Company Name:Anhui Tongfeng Electronics Co., Ltd.
  • Add:Tongfeng Industrial Park, 3rd Cuihu Rd., Tongling City, Anhui Province
  • Contacts:Mr. General Manager - Fang
  • Tel:
    +86-562-2819401
  • Email:fangxg@tong-feng.com