Project

Unit

Property Index

Test Condition

Test Standard

Film Thickness

µm

12.5

25

50

23℃

ASTM D374

Glass-transition Temperature(Tg）

℃

356

356

356

10℃/min,N₂

-

Optical

Property

Transmission

%

83

83

83

23℃,400nm

ASTM D1003

Transmission

%

87

87

87

23℃,500nm

ASTM D1003

Refractive(nTE)

1.56

1.56

1.56

23℃

ASTM D1003

Refractive(nTM)

1.55

1.55

1.55

23℃

ASTM D1003

Mechanical

Property

Ten.Strength

MPa

145

170

160

23℃

ASTM D882

 Elongation

%

15

20

20

23℃

ASTM D882

Ten.Modulus

GPa

2

3

4

23℃

ASTM D882

Electrical

Property

Diel. Constant

–

3.3

3.3

3.3

1MHz 23℃

ASTM D150

Dielectric Dissipation Factor

–

0.007

0.007

0.007

1MHz 23℃

ASTM D150

Volume Resistivity

Ω∙cm

＞10¹⁴

＞10¹⁴

＞10¹⁴

500V 23℃

ASTM D257

 Surface Resistivity

Ω

＞10¹⁴

＞10¹⁴

＞10¹⁴

500V 23℃

ASTM D257

Dielectric Strength

v/µm

160

200

180

23℃

ASTM D149

Thermal

Property

CTE

ppm/℃

18

18

18

100～200℃

ASTM D696

30

30

30

200-300℃

Dimensional Stability

%

0.12

0.12

0.12

200℃,2Hr

ASTM D5213–04

Physical

Property

Hygroscopicity

%

2.5

2.5

2.5

23℃,24Hr

ASTM D570

Density

g/cm³

1.38

1.38

1.38

23℃

ASTM D1505

Wetting Tension

mN/m

60

60

60

23℃

IEC674-2

Flame Retardant Grade

VTM-0

VTM-0

VTM-0

Vertical Burning TEST

Chemical

Property

benzene

Longitudinal Tension Retention(%)

100

100

100

23℃ infiltrating for 10Min,
testing 24 hrs later

ASTM D882

10%hydrochloric acid

98

98

98

10%sulphuric acid

97

97

97

5%sodium hydrate

90

90

90