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PET film
  • PET film
  • PET film
  • PET film
  • PET film

PET film

Details

1. Features

It adopts ultra-high purity electric grade polyethylene glycol terephthalate, and is formed through biaxial stretching by flat film method, which has features of good transparency, non-toxic and tasteless, tensile strength, high temperature, good stiffness, flexural crack, unbreakable; as a kind of typical polar material, it has higher dielectric constant with excellent electric insulation performance, which can keep good electrical property under higher frequency.

2. Applications 

It is mainly used for metallized film capacitors and foil type capacitors such as energy-saving light capacitors, HEV capacitors, AC capacitors etc.

3. Sizes & Specifications

   Specifications   

2.7

3.0

4.3

5.4

6.0

7.4

8.4

9.8

11.3

12.0

 

Thickness

 

 

 

Weight method

WMV

 

μm

2.7

3.0

4.3

5.4

6.0

7.4

8.4

9.8

11.3

12.0

 

Mechanical method

MMV

μm

2.9

3.2

4.5

5.6

6.2

7.7

8.7

10.1

11.6

12.3

 

Average thickness toleranceWMV

 

%

±0.1

 

±0.3

±0.4

Film reel width of finished products

mm

500±2, 620±2, or slit as customers’ request

IDD0

mm

Φ152.4


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ODD

mm

Φ320~Φ500


4. Representing method of thickness

The nominal value can use the central value of the thin film thickness (integer value such as 3, 4, 5, 10, etc) plus the mantissa (one decimal place). We use Weight method (WMV) to value the thickness.

5. Technical Features

Item

Unit

Instruction value

Test standard

Thickness

μm

2.43.5

3.63.9

4.05.9

≥6.0

Density

g/cm3

1.400±0.005

GB/T 13542.2-2009/11

Melting point

≥256

GB/T 13542.2-2009/23

Tensile strength

Vertical

N/mm2

≥200

≥200

≥220

≥220

GB/T   13542.2-2009/11

Horizontal

≥240

≥240

≥240

≥240

Elongation

Vertical

%

≥70

GB/T   13542.2-2009/11

Horizontal

≥70

Elasticity modulus

Vertical

N/mm2

≥3500

GB/T   13542.2-2009/11

Horizontal

≥3500

Heat shrinkage150℃/30min

Vertical

%

≤2.5

GB/T 13542.2-2009/23

    Horizontal

≤1.5

Surface roughness Ra

μm

0.08±0.020

0.095±0.020

GB/T 13542.2-2009/8

Electric 

strength

(DC side electrode method)

Average value

V/μm

≥350

≥400

GB/T13542.2-2009/18.2.2

Min. value

≥300

≥350

Friction coefficient (Static/Dynamic)

A       

≤0.70

GB/T 10006-1988

Volume resistivity

Ω·m

≥1.0×1015

GB/T13542.2-2009/16.1

Relative permittivity (1KHz)


3.2±0.3

GB/T 13542.2-2009/17.1

Medium wearing factor (1kHz,25℃)


≤6.0×10-3

GB/T 13542.2-2009/17.1

Electroweak point

piece/ m2

≤1

≤0.6

≤0.2

IEC 60674-2

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

6. Tensile strength curve



7. Relation curve between the dielectric strength and film thickness


8. Package

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.

9. Storage

The film roll should be stored without any forms of impact in a dry place without direct sunlight and water; 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.

10. Label

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

  • 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