Table 4.
Comparison of the ultimate stresses of tensile and compression testing and the comparison of the elastic moduli of nanoindentation, tension, and compression testing of neat PLA and PLA/J specimens.
| Sample | Ultimate Tensile Stress (MPa) | Ultimate Compression Stress (MPa) |
Ei Nanoindentation (N/mm2) |
Ei Tension (N/mm2) |
Ei Compression (N/mm2) |
|---|---|---|---|---|---|
| PLA neat | 47.57 ± 1.56 | 56.36 ± 3.07 | 3571.80 ± 259.87 | 2005 ± 6.61 | 3100 ± 10.48 |
| PLA/J1 | 50.67 ± 0.43 | 63.64 ± 0.91 | 3320.50 ± 82.50 | 2050 ± 9.95 | 3300 ± 81.69 |
| PLA/J2 | 52.95 ± 1.05 | 67.26 ± 0.39 | 3945.33 ± 134.74 | 2200 ± 16.02 | 3450 ± 9.79 |
| PLA/J3 | 49.05 ± 2.06 | 64.83 ± 5.47 | 3755.00 ± 48.05 | 2100 ± 3.17 | 3200 ± 18.28 |