Specification of Parylene
|
Typical Specifications of Parylene C
|
| |
PARYLENE C VALUE |
ASTM METHOD |
| GENERAL |
| Density (g/cm) |
1.289 |
D1505 |
| Refractive welcome |
1.639 |
|
| ELECTRICAL |
Dielectric strength
(voltage breakdown)
volts/mil |
5,600 volts |
D149 |
| Dielectric constant |
|
D150 |
| 60 Hz |
3.15 |
|
| 1 kHz |
3.10 |
|
| 1 MHz |
2.95 |
|
| Dissipation factor |
|
D150 |
| 60 Hz |
0.020 |
|
| 1 kHz |
0.019 |
|
| 1 MHz |
0.013 |
|
Dielectric strength
@ 25µm, short time
MV/m |
220 |
D149 |
Dielectric strength
@ 25µm, step-by-step
MV/m |
185 |
D149 |
Volume resistivity
@ 23ºC, 50% RH, ohms |
8.8 x 1016 |
D257 |
Surface resistivity
@ 23ºC, 50% RH, ohms |
1 x 1014 |
D257 |
| MECHANICAL |
| Tensile modulus, GPa |
3.2 |
D882 |
| Tensile strength, MPa |
70 |
D882 |
| Tensile strength, psi |
10,000 |
D882 |
| Yield strength, MPa |
5.5 |
D882 |
| Elongation to break, % |
200 |
D882 |
| Yield elongation, % |
2.9 |
D882 |
| Coefficient of friction-static |
0.29 |
D1894 |
| Coefficient of friction-dynamic |
0.29 |
D1894 |
| Rockwell hardness |
R80 |
D785 |
| THERMAL |
| Melting point, ºC |
290ºC |
|
Linear coefficient of
expansion (10-5/ºC) |
3.5 |
D696 |
Thermal conductivity @ 25ºC
(watts/meter-Kelvin) |
0.082 |
C177 |
Specific heat @ 20ºC
cal/g/ºC |
0.17 |
|
| BARRIER |
| Water absorption, % (24 hr) |
0.06 (.029") |
D570 |
Water vapor transmission
@ 37ºC (ng) |
0.0004 |
D570 |
Gas permeability
cc-mil/100 in 2 - 24 hrs |
|
|
| N2 |
0.6 |
|
| O2 |
5 |
|
| CO2 |
14 |
|
| H2 |
110 |
|
Moisture vapor transmission
gm-mil/100 in - 24 hrs |
1 |
|
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