|
Typical Properties for Natural TEFLON® PTFE fluoropolymer fiber |
| Yarn denier: filaments (dtex: filaments) |
400-60 (440-60) |
| Stress-Strain Properties** |
|
| |
|
| Straight Test |
|
| Tensile strength, psi (MPa) |
52,500 (362) |
| Breaking strength, Ibs (N) |
1.7 (7.6) |
| Breaking tenacity, g/den. (cN/tex) |
2.0 (19.6) |
| Elongation at break, % |
19 |
| Initial modulus, g/den. (cN/tex) |
13.0 (127.4) |
| |
|
| Loop test |
|
| Tensile strength, psi (MPa) |
31,000 (214) |
| Breaking strength, lbs (N) |
1.8 (8.0) |
| Elongation at break, % |
8.5 |
| |
|
| Thermal Properties |
|
| Shrinkage alter 30 minutes, % in water at 212°F (100°C) |
2.5 |
| |
in air at 350°F (177C) |
6.0 |
| Specific heat, cal/g•oC (J/kg•K) |
0.25 (1.046) |
| Thermal conductivity, BTU/h•ft2•oF for 1" of thickness |
|
| (W/m2•K for 1cm of thickness) |
|
1.7 (245) |
| Zero strength temperature***, oF (°C) |
590 (310) |
| Gel temperature, F (°C) |
621 (327) |
| Sublimation rate, % weight loss/hourat 554°F (290oC) |
0.0002 |
| |
at 806°F (430oC) |
1.5 |
| |
|
| General Properties |
|
| Specific gravity |
2.1 |
| Moisture regain, % |
0.0 |
| |
| **Stress-strain properties were determined on an "Instron" tensile tester at 70°F (21°C), 65% R.H. |
| *** Temperature at which the yarn breaks under a load of 0.1 g/den. (0.98 cN/tex) |