PP Homopolymer vs. Unfilled PTFE
Both PP homopolymer and unfilled PTFE are thermoplastics. There are 14 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is PP homopolymer and the bottom bar is unfilled PTFE.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 45 to 64 | |
| 24 |
| Elongation at Break, % | 3.0 to 80 | |
| 300 |
| Flexural Modulus, GPa | 1.5 to 7.0 | |
| 0.4 |
| Flexural Strength, MPa | 41 to 100 | |
| 50 |
| Impact Strength: Notched Izod, J/m | 42 to 95 | |
| 170 |
| Tensile Strength: Ultimate (UTS), MPa | 36 to 93 | |
| 25 |
Thermal Properties
| Glass Transition Temperature, °C | 170 | |
| -35 |
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 73 to 160 | |
| 70 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 270 |
| Specific Heat Capacity, J/kg-K | 1230 to 1900 | |
| 1050 |
| Thermal Expansion, µm/m-K | 30 to 90 | |
| 120 |
Otherwise Unclassified Properties
| Density, g/cm3 | 0.91 to 1.2 | |
| 2.2 |
Common Calculations
| Strength to Weight: Axial, points | 11 to 21 | |
| 3.2 |
| Strength to Weight: Bending, points | 27 to 37 | |
| 8.7 |