HDPE vs. PP Homopolymer
Both HDPE and PP homopolymer are thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is HDPE and the bottom bar is PP homopolymer.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.0 to 1.3 | |
| 0.91 to 1.2 |
| Elongation at Break, % | 2.5 to 100 | |
| 3.0 to 80 |
| Flexural Modulus, GPa | 4.0 to 7.5 | |
| 1.5 to 7.0 |
| Impact Strength: Notched Izod, J/m | 50 to 260 | |
| 42 to 95 |
| Maximum Temperature: Mechanical, °C | 90 | |
| 120 |
| Specific Heat Capacity, J/kg-K | 1330 to 2400 | |
| 1230 to 1900 |
| Strength to Weight: Axial, points | 6.9 to 17 | |
| 11 to 21 |
| Strength to Weight: Bending, points | 19 to 32 | |
| 27 to 37 |
| Tensile Strength: Ultimate (UTS), MPa | 24 to 80 | |
| 36 to 93 |
| Water Absorption At Saturation, % | 0.1 to 0.3 | |
| 0.010 to 0.090 |