Table 3.
Mechanical properties of PP-based composites
| Sample | Young’s modulus, MPa | Tensile strength, MPa | Elongation, % | Impact strength, kJ m−2 |
|---|---|---|---|---|
| PP | 1,360±20 | 30.0±0.2 | >500 | 2.18±0.08 |
| PP/0.5% CNF | 1,548±42 | 31.6±0.3 | >500 | 2.82±0.14 |
| PP/1% CNF | 1,574±33 | 31.8±0.2 | >500 | 2.84±0.11 |
| PP/2% CNF | 1,630±25 | 31.9±0.3 | >500 | 2.98±0.18 |
| PP/20% HANR | 2,280±40 | 30.2±0.2 | 8.7±0.9 | 1.53±0.06 |
| PP/0.5% | 2,377±48 | 32.1±0.2 | 10.5±0.9 | 2.21±0.07 |
| CNF–20% HANR | ||||
| PP/1% | 2,473±47 | 32.6±0.2 | 8.7±0.8 | 2.30±0.12 |
| CNF–20% HANR | ||||
| PP/2% | 2,517±15 | 33.0±0.3 | 7.7±0.2 | 2.38±0.19 |
| CNF–20% HANR | ||||
Abbreviations: PP, polypropylene; CNF, carbon nanofiber; HANR, hydroxyapatite nanorod.