| PFA Data |
Typical
Value* |
|
|
| Property |
|
Test
Method |
|
SI
Units |
|
Inch-Pound
Units |
|
|
MECHANICAL
Tensile Strength at break
Elongation at break
Yield Point
Elastic Modulus
Impact Resistance
Folding Endurance (MIT)
Tear Strength - Initial (Graves)
Tear Strength - Propagating (Elmendorf) |
|
ASTM
D-882
ASTM D-882
ASTM D-882
ASTM D-882
DuPont
pneumatic
impact tester
ASTM D-2176
ASTM D-1004
ASTM D-1992 |
|
21 N/mm2
300%
12 MPa
480 MPa
6.2 x 104
100,000 cycles
4.90 N
0.74 N |
|
|
3000
psi
300%
1700 psi
70000 psi
14 in-lb/mil
100,000 cycles
500 grams
75 grams |
|
|
THERMAL
Melt Point
Thermal Conductivity
Specific Heat
Dimensional Stability
Oxygen Index |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ASTM
D-3418
(DTA)
Cenco-Fitch
_
30 min
@ 150°C (302°F)
ASTM D-2863 |
|
302°-310°C
0.195 W/(m - K)
1172 J/(kg - K)
MD=1% shrinkage
TD=1% shrinkage
95% |
|
575°-590°F
1.35 Btu - in/(h - ft2 - °F)
0.28 Btu/lb - °F)
MD=1% shrinkage
TD= 1% shrinkage
95% |
|
|
ELECTRICAL
Dielectric Strength, short-time,
in air @ 23°C (73°F), 6.35 mm (1/4 inch)
diameter electrode, 0.79 mm (1/32 inch)
radius, 60 Hz, 500 V/s rate of rise:
0.025 mm (1 mil) film
Dielectric Constant
25°C (77°F), 100 Hz to 1 MHz
Dissipation Factor,
25°C (77°F), 100 Hz to 1MHz
Volume Resistivity,
-40° to 240°C (-40° to 464°F) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ASTM
D-149
Method A
ASTM D-150
ASTM D-150
ASTM D-257 |
|
260
kV/mm
2.0
0.0002-0.0007
>1 X 1017 ohm - centimeter |
|
6500
V/mil
2.0
0.0002-0.0007
>1 x 1017 - centimeter |
|
|
|
|
|
|
|
|
|
|
Typical
Value |
| Property |
|
Test
Method |
|
SI
Units |
|
Inch-Pound
Units |
CHEMICAL
Moisture Absorbtion |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
_ |
|
<0.02% |
| Permeability,
gas: |
|
ASTM
D-1434 |
|
cm3/(m2
- 24h - atm)** |
| carbon
dioxide |
|
|
|
|
|
14 x 103 |
| nitrogen |
|
|
|
|
|
2.0 x
103 |
| oxygen |
|
|
|
|
|
6.7 x
103 |
| Permeability,
vapors: |
|
ASTM
E-96 |
|
g/(m2
- d) |
|
g/(100
in2 - 24 h) |
| water |
|
|
|
|
|
2 |
|
0.13 |
| TEFLON®is
chemically inert and solvent resistant to virtually all chemicals except
molten alkali metals, gaseous fluorine, and certain complex halogenated
compounds, such as chlorine trifluoride at elevated temperatures and
pressures. |
|
|
|
|
ASTM
D-1505 |
|
2150
kg/m3 |
|
134
lb/ft3 |
MISC.
Density |
|
|
|
|
|
|
|
ASTM
D-1894 |
|
0.1-0.3 |
Coefficient
of friction
kinetic (film-to-steel) |
|
|
| Refractive
Index |
|
ASTM
D-542 |
|
1.350 |
| Solar
Transmission |
|
ASTM
E-424 |
|
96% |
