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

50+18%

50.1+1.8/-1.6

3

Density, kg/m3

1420+20

1430

4

Tensile Strength,

 Mpa(kgf/cm2) ≥

MD ≥140

TD ≥140

MD:182

TD :180

5

Elongation at Rupture, % ≥

MD ≥40

TD ≥40

MD:113

TD :114

6

Shrinkage, (%)

MD ≤0.1(200ºC/392F 2HRS)

TD ≤0.1(200ºC/392F 2HRS)

MD≤0.1

TD≤ 0.1

7

Dielectric Strength, MV/m ≥

Average Value ≥150

Typical Value ≥100

Average Value:307

Typical Value:265

8

Surface Resistivity, Ω ≥

20ºC/68F+5≥1.0×10¹³

3.6*10¹⁶

9

Volume Resistivity, Ω.cm ≥

20ºC/68F+5≥1.0×10¹⁵

4.7*10¹³

10

  Dielectric Constant, (10⁶H)

48-62HZ≤3.9

2.9

11

Dielectric Tangent, (10⁶H)≤

48-62HZ≤5.0*10^-3

2.5*10^-3

12

Dyne

≥45

≥50