PHB vs. PS
Both PHB and PS are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is PHB and the bottom bar is PS.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 1.3 | |
| 1.9 to 2.9 |
| Elongation at Break, % | 7.5 | |
| 1.8 to 40 |
| Flexural Strength, MPa | 20 | |
| 62 to 80 |
| Tensile Strength: Ultimate (UTS), MPa | 30 | |
| 32 to 44 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 120 | |
| 70 |
| Vicat Softening Temperature, °C | 58 | |
| 100 to 110 |
Electrical Properties
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 14 | |
| 14 to 15 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 | |
| 1.0 |
| Water Absorption After 24 Hours, % | 0.75 | |
| 0.040 to 0.080 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.58 | |
| 1.0 to 1.5 |
| Stiffness to Weight: Bending, points | 29 | |
| 40 to 45 |
| Strength to Weight: Axial, points | 6.7 | |
| 8.5 to 12 |
| Strength to Weight: Bending, points | 17 | |
| 22 to 26 |