Table 2.
Mechanical properties of the PLA, followed by the root-mean-square error.
| Printing Temperature (°C) | Wavy Surface | Ageing (Days) | Crosshead Speed (mm/min) | Strain Rate (min−1) | Yield Strength (MPa) | Elastic Modulus (GPa) |
|---|---|---|---|---|---|---|
| 190 | No | 10 | 0.5 | 2.5 × 10−2 | 43 ± 1 | 3.0 ± 0.1 |
| 190 | No | 10 | 1 | 5 × 10−2 | 45 ± 2 | 3.2 ± 0.1 |
| 190 | No | 10 | 5 | 2.5 × 10−1 | 51 ± 3 | 3.5 ± 0.2 |
| 190 | No | 10 | 50 | 2.5 | 66 ± 2 | 4.1 ± 0.1 |
| 190 | No | 125 | 0.125 | 6.25 × 10−3 | 51 ± 1 | 3.2 ± 0.1 |
| 190 | No | 125 | 1 | 5 × 10−2 | 59 ± 1 | 3.5 ± 0.1 |
| 190 | No | 125 | 10 | 5 × 10−1 | 68 ± 3 | 3.5 ± 0.2 |
| 190 | No | 125 | 100 | 5 | 75 ± 2 | 3.9 ± 0.1 |
| 190 | No | 426 | 0.125 | 6.25 × 10−3 | 54 ± 1 | 3.1 ± 0.1 |
| 190 | No | 426 | 1 | 5 × 10−2 | 60 ± 2 | 3.6 ± 0.1 |
| 190 | No | 426 | 10 | 5 × 10−1 | 71 ± 1 | 3.6 ± 0.1 |
| 190 | No | 426 | 100 | 5 | 85 ± 2 | 3.9 ± 0.2 |
| 180 | No | 1 | 1 | 5 × 10−2 | 34 ± 3 | 2.2 ± 0.2 |
| 180 | No | 49 | 1 | 5 × 10−2 | 57 ± 1 | 3.5 ± 0.1 |
| 180 | Yes | 49 | 1 | 5 × 10−2 | 57 ± 2 | 3.5 ± 0.2 |
| 180 | No | 65 | 1 | 5 × 10−2 | 57 ± 2 | 3.6 ± 0.1 |
| 180 | No | 384 | 1 | 5 × 10−2 | 59 ± 1 | 3.6 ± 0.1 |
| 190 | No | 1 | 1 | 5 × 10−2 | 41 ± 3 | 2.3 ± 0.2 |
| 190 | No | 19 | 1 | 5 × 10−2 | 48 ± 2 | 2.9 ± 0.1 |
| 190 | No | 33 | 1 | 5 × 10−2 | 53 ± 3 | 3.3 ± 0.2 |
| 190 | No | 49 | 1 | 5 × 10−2 | 58 ± 1 | 3.6 ± 0.2 |
| 190 | No | 65 | 1 | 5 × 10−2 | 59 ± 1 | 3.7 ± 0.1 |
| 190 | No | 98 | 1 | 5 × 10−2 | 60 ± 1 | 3.8 ± 0.1 |
| 190 | No | 140 | 1 | 5 × 10−2 | 60 ± 2 | 3.6 ± 0.2 |
| 190 | No | 180 | 1 | 5 × 10−2 | 59 ± 2 | 3.7 ± 0.2 |
| 190 | No | 366 | 1 | 5 × 10−2 | 60 ± 2 | 3.7 ± 0.1 |