|
| PFA Detailed Properties
(Perfluoroalkoxy) |
|
|
Properties
|
ASTM or Unit
|
PFA
|
| MECHANICAL PROPERTIES |
| Specific Gravity |
D792 | 2.15 |
| Elongation % |
D638 | 280~400 |
| Tensile Strength (psi) |
D638 | 4,000~4,500 |
| Flexural Strength (psi) |
D790 | no break |
| Compressive Strength | D695 |
710~860 |
Tensile Elastic Modulus
(Young's Modulus) (psi) |
D638 | 72,500~87,000 |
(psi)
Flexural Modulus
103MPa (103kgf/cm2) | D790 |
94,000~99,000 |
| D790 | 0.6-0.7 (6.6-7.0) |
Flex Life
(MIT cycles) |
D2176 | 10,000~500,000 |
Hardness Durometer
Shore D |
D636 | D55~60 |
| Coefficient of Friction |
on steel | 0.2 |
Abrasion Resistance
1000 revs. |
Taber | 9~17 |
Impact Strength IZOD
73°F/23°C, notched ft/lbs/in | D256 |
no break |
| THERMAL PROPERTIES |
| Melting Point |
°C
(°F) |
305
(582) |
Upper Service
Temperature(20,000h) |
°C
(°F) |
260
(500) |
| Flame Rating** |
UL 94 |
V-0 |
Thermal Conductivity
|
BTU/hr/ft2/deg F in |
1.3 |
| cal/sec/cm2,ºC/cm |
6 x 10-6 |
| Linear Coefficient of Thermal Expansion 10-5 °C |
D696 |
13 |
| Heat of Fusion |
BTU/LB | 13 |
| Heat of Combustion |
BTU/LB | 2300 |
| Low Temperature Embrittlement |
°C
(°F) | -268
(-450) |
| ELECTRICAL PROPERTIES |
| Dielectric Constant |
D150/103Hz |
2.1 |
| D150/106Hz |
2.1 |
Dielectric Strength
10 mil film |
D149 | >2000 |
| Volume Resistivity ohm-cm |
D257 | >1018 |
Surface Resistivity
ohm/sq. |
D257 | >1017 |
| GENERAL PROPERTIES |
Chemical/Solvent
Resistance | D543 |
Excellent |
| Water Absorption, 24h |
% | <0.03 |
| Deformation Under Load |
*D621/100°C | 2.4 |
| **D621/25°C | 2.7 |
| Refractive Index |
| 1.34 |
| Limiting Oxygen Index |
>95 |
>95 |
|
Properties
|
ASTM or Unit
|
PFA
|
|
*6.8 MPa (986 psi),24h
**13.7 MPa (1987 psi),24h
|
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