Croyfilm Polyamide Kapton® Film 0.13mm X 914mm Wide

Property

Unit

125microns

Test Method

Ultimate Tensile Strength

at 23^°C

psi (MPa)

33,500 (231)

ASTM D-882-91, Method A

at 200^°C

20,000 (139)

Ultimate Elongation

at 23^°C

%

82

ASTM D-882-91, Method A

at 200^°C

83

Tensile Modulus

at 23^°C

psi (GPa)

370,000 (2.5)

ASTM D-882-91, Method A

at 200^°C

290,000 (2.0)

Density

g/cc

1.42

ASTM D- 1505-90

MIT Folding Endurance

cycles

5,000

ASTM D-2176-89

Tear Strength-propagating (Elmendorf), N (lb./f)

0.58

(0.02)

ASTM D-1992-89

Tear Strength, Initial (Graves), N (lb/f)

46.9 (1.6)

ASTM D-1004-90

Yield Point at 3%

at 23^°C

MPa (psi)

69 (10,000)

ASTM D-882-91

at 200^°C

41 (6,000)

Stress to produce 5% elongation

at 23^°C

MPa (psi)

90 (13,000)

ASTM D-882-92

at 200^°C

61 (9,000)

Coefficient of friction, Kinetic

(film to film)

0.48

ASTM D-1894- 90

Coefficient of friction, static

(film to film)

0.63

ASTM D-1894-90

Refractive Index (sodium D line)

1.70

ASTM D-542-90

Poisson’s Ratio

0.34

Avg. three samples, Elongated at 5, 7,10%

Low temperature flex life

Pass

IPC-TM-650, Method 2.6.18

Impact strength at 23^°C

N, cm

ft.lb.

78

0.58

DuPont Pneumatic Impact Test

Thermal Property

Typical Value

Test Condition

Test Method

Melting Point

None

None

ASTM E-794-85 (1989)

Thermal Coefficient of Linear Expansion

20 ppm/^°C

-14 to 38^°C

ASTM D-696-91

Coefficient of Thermal Conductivity

W/m.K

      cal

 cm.sec.^oC

0.12

2.87 x 10⁴

296 K

23^°C

ASTM F-433-77

(1987)

Specific Heat, J/g. K (cal/g. ^°C)

1.09 (0.261)

Differential calorimetry

Heat Seal-ability

Not heat sealable

Solder Float

Pass

IPC-TM-650

Method 2.4.13A

Smoke generation

D_m = <1

NBS smoke chamber

NFPA-258

Shrinkage, %

30 mins at 150^°C

0.17

IPC-TM-650

Method 2.2.4A;

ASTM D-5214-91

120 mins at 200^°C

1.25

Limiting oxygen index - %

37-45

ASTM D-2863-87

Glass Transition Temperature (T_g)

A second order transition occurs in Kapton® between 360^°C and 410^°C and is assumed to be the glass transition temperature. Different measurements techniques produce different results within the above temperature range.

Property Film Gage

Typical Value

Test Condition

Test Method

Dielectric Strength

V/m kV/mm – 154

60Hz ¼ in electrodes

500 V/sec rise

ASTM D-149-91

Dielectric Constant

3.5

1kHz

ASTM D-150-92

Dissipation Factor

0.0026

1kHz

ASTM D-150-92

Volume Resistivity

1x10¹⁷

ASTM D-257-91