PET vs. PHB
Both PET and PHB are thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is PET and the bottom bar is PHB.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 3.5 to 11 | |
| 1.3 |
| Elongation at Break, % | 2.5 to 70 | |
| 7.5 |
| Tensile Strength: Ultimate (UTS), MPa | 60 to 140 | |
| 30 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 80 | |
| 120 |
| Melting Onset (Solidus), °C | 260 | |
| 180 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 3.7 | |
| 3.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.4 to 1.6 | |
| 1.3 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.2 to 4.4 | |
| 0.58 |
| Stiffness to Weight: Bending, points | 32 to 54 | |
| 29 |
| Strength to Weight: Axial, points | 12 to 27 | |
| 6.7 |
| Strength to Weight: Bending, points | 25 to 41 | |
| 17 |