No.

Items

Specification

Analysis result

1

Appearance

The surface of the film shall be smooth and free from bubbles, holes, contaminations and other defects, cutting edge tidy, not damaged.

Pass

2

Thickness Nominal, (μm)

13+18%

13+0.6/-0.5

3

Density, (kg/m3)

1420+20

1429

4

Tensile Strength ,

 Mpa (kgf/cm2) ≥

MD ≥140

TD ≥140

MD:164

TD:163

5

Elongation at Rupture, % ≥

MD ≥40

TD ≥40

MD:58

TD:56

6

Shrinkage, (%)

MD ≤0.1(200ºC/392F 2HRS)

TD ≤0.1(200ºC/392F 2HRS)

MD≤0.1

TD≤0.1

6

Dielectric Strength, MV/m ≥

Average Value ≥150

Typical Value ≥100

Average Value:353

Typical Value:258

7

Surface Resistivity, Ω ≥

20ºC/68F+5≥1.0×10¹³

1.0*10¹⁶

7

Volume Resistivity, Ω.cm ≥

20ºC/68F+5≥1.0×10¹⁵

6.7*10¹³

8

  Dielectric Constant, (10⁶H)

48-62HZ≤3.9

2.2

1 0

Dielectric Tangent, (10⁶H)≤

48-62HZ≤5.0*10^-3

1.7*10^-3

1 1

Dyne

≥45

≥50