  |
  |
        |
  |
 |
 |
 TECHNICAL DESCRIPTION
Discovered in 1938 by Dr. Roy J. Plunkett of the DuPont Company, Teflon® is a fluorocarbon-based polymer. PolyTetraFluoroEthylene is commonly abbreviated PTFE, and the Teflon® brand of PTFE is manufactured only by DuPont™. The fluoroplastic family offers plastics with high chemical resistance, low and high temperature capability, resistance to weathering, low friction, electrical and thermal insulation, and “slipperiness”.
GENERAL PROPERTIES
Mechanical properties of Teflon® are low compared to other plastics, but its properties remain at a useful level over a wide temperature range of -100°F to +400°F (-73°C to 204°C). It has excellent thermal and electrical insulation properties and a low coefficient of friction. PTFE is very dense and cannot be melt processed -- it must be compressed and sintered to form useful shapes. |
| |
| TYPICAL PROPERTIES OF TEFLON® PTFE |
| PHYSICAL |
| ASTM or UL test |
Property |
PTFE (unfilled) |
| D792 |
Density (lb/in3)
(g/cm3) |
0.0783
2.163 |
| D570 |
Water Absorption, 24 hrs (%) |
< 0.01 |
| MECHANICAL |
| D638 |
Tensile Strength (psi) |
3,900 |
| D638 |
Tensile Modulus (psi) |
80,000 |
| D638 |
Tensile Elongation at Break (%) |
300 |
| D790 |
Flexural Strength (psi) |
No break |
| D790 |
Flexural Modulus (psi) |
72,000 |
| D695 |
Compressive Strength (psi) |
3,500 |
| D695 |
Compressive Modulus (psi) |
70,000 |
| D785 |
Hardness, Shore D |
D50 |
| D256 |
IZOD Notched Impact (ft-lb/in) |
3.5 |
| THERMAL |
| D696 |
Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F) |
7.5 |
| D648 |
Heat Deflection Temp (°F/°C) at 264 psi |
132/55 |
| D3418 |
Melting Temp (°F/°C) |
635/335 |
| - |
Max Operating Temp (°F/°C) |
500/260 |
| C177 |
Thermal Conductivity
(BTU-in/ft2-hr-°F)
(x 10-4 cal/cm-sec-°C) |
1.703
5.863 |
| UL94 |
Flammability Rating |
V-O |
| ELECTRICAL |
| D149 |
Dielectric Strength (V/mil) short time, 1/8” thick |
285 |
| D150 |
Dielectric Constant at 1 MHz |
2.1 |
| D150 |
Dissipation Factor at 1 M Hz |
< 0.0002 |
| D257 |
Volume Resistivity (ohm-cm) at 50% RH |
> 1018 |
|
|
Note: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control.
All values a 73°F (23°C) unless otherwise noted.
Home :: About Us :: Products :: Materials :: Ordering :: Tools :: Contacts |
|
 |
|
  |
 |
Engineering
Laboratories | ©
360 West Oakland Ave. | Oakland, NJ 07436 | USA | 1.800.941.2525
| 201.337.8116 | FAX 201.337.2467 |
|
 |
|
  |
|
