to Thermoplastics
to Properties of polymers
(submitted by the website administration)
| Thermoplastic | ||||
| Polytetrafluoroethylene (PTFE) | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 2.17 *10³ | kg/m³ | 135.5 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 0.49 | GPa | 69 | ksi |
| Tensile strength | 24 | MPa | 3500 | psi |
| Elongation | 300 | % | 300 | % |
| Flexural strength | 33 | MPa | 4800 | psi |
| Thermal expansion (20 ºC) | 95*10-6 | ºCˉ¹ | 53*10-6 | in/(in* ºF) |
| Thermal conductivity | 0.25 | W/(m*K) | 1.73 | BTU*in/(hr*ft²*ºF) |
| Glass transition temperature | 27 | ºC | 81 | ºF |
| Maximum work temperature | 290 | ºC | 554 | ºF |
| Dielectric constant | 2.1 | - | 2.1 | - |
Applications: bearings pump parts, non-sticking coating, tubes for chemicals, thread seal tape, high and low temperature electrical and medical applications, lining for rolls.