Properties

Units

Property Index

Test Condition

Test Method

Thickness

µm

25

50

23℃

ASTM D374

Glass Transition Temperature（Tg）

℃

280

280

10℃/min

DSC/TMA

Optical

Property

Transmission

%

87

87

23℃,450nm

ASTM D1003

Transmission

%

90

88

23℃, 500nm

ASTM D1003

Refractive (nTE)

1.50

1.50

23℃

ASTM D1003

Refractive (nTM)

1.52

1.52

23℃

ASTM D1003

UV cut-off wavelength

nm

380

380

23℃

ASTM D1003

Mechanical

Property

Ten.Strength (MD)

MPa

120

120

23℃

ASTM D882

Ten.Strength (TD)

MPa

122

122

23℃

ASTM D882

Elongation (MD)

%

36

36

23℃

ASTM D882

Elongation (TD)

%

37

37

23℃

ASTM D882

Ten.Modulus

GPa

3

3

23℃

ASTM D882

Puncture Strength

N

12.954

12.954

23℃

ASTM D882

Electrical

Property

Diel. Constant

–

3.0

3.0

1MHz 23℃

ASTM D150

Dielectric Dissipation Factor

–

0.007

0.007

1MHz 23℃

ASTM D150

Volume Resistivity

Ω?cm

＞10¹⁴

＞10¹⁴

500V 23℃

ASTM D257

 Surface Resistivity

Ω

＞10¹⁴

＞10¹⁴

500V 23℃

ASTM D257

Dielectric Strength

v/µm

246

246

23℃

ASTM D149

Thermal

Property

CTE

ppm/℃

46

46

100～200℃

ASTM D696

Dimensional Stability

%

0.7

0.7

200℃,2Hr

ASTM D5213–04

Physical

Property

Hygroscopicity

%

2.3

2.3

23℃， 24Hr

ASTM D570

Density

g/cm3

1.42

1.42

23℃

ASTM D1505

Wetting Tension

mN/m

60

60

23℃

IEC674-2

Flame Retardant Grade

VTM-0

VTM-0

Vertical Burning TEST

Chemical

Property

benzene

Longitudinal Tension Retention(%)

100

100

23℃ infiltrating for 10Min,
testing 24 hrs later

ASTM D882

Toluene

100

100

10%hydrochloric acid

99

99

10%sulphuric acid

99

99

5%sodium hydrate

96

96

ethyl acetate

100

100

ethyl alcohol

100

100

acetone

100

100