Table 1.
Tested materials’ suppliers with their claimed mechanical properties.
| Type | Item | PLA | HTPLA | NYLON d = dry; m = moist | Based on |
|---|---|---|---|---|---|
| Filament | Diameter | 1.75 mm | 1.75 mm | 1.75 mm | - |
| Specific Gravity | 1.24 (g/cc) | 1.25 (g/cc) | 1.12 (g/cc) | (ASTM D1505) | |
| Supplier | FiloAlfa® | Fabbrix® | Polymaker® | - | |
| Part Number | 1PLA10002 | FHT020075 | 200805107 | - | |
| Mechanical | Tensile Strength | 47.8 Mpa | 40.8 Mpa | 66.2 Mpa (d), | ISO 527, (ASTM D638) |
| 36.4 Mpa (m) | |||||
| Tensile Modulus | 2436 Mpa | 2190 Mpa | 2223 Mpa (d), | ISO 527, (ASTM D638) | |
| 1053 Mpa (m) | |||||
| Yield Strength | - | 90.9 Mpa | 97 ± 1.1 Mpa (d), 41.6 ± 11.6 Mpa (m) |
ISO 178, (ASTM D790) | |
| Elongation at Break | 4.59% | 5% | - | DIN EN ISO 6892-1 | |
| Hardness-Vickers | 83 Shore D | - | - | DIN EN ISO 6507-1 | |
| Impact Strength (v-notched Izod) | 17.91 kJ/m2 | 25.31 kJ/m2 | 9.6 ± 1.4 KJ/m2 (d) | ISO 180 (d), ISO 179 (m), ASTM D256 (t) | |
| 17.2 ± 1.4 KJ/m2 (m) | |||||
| Thermal | Melting Point | 145–160 °C | 165–180 °C | 180 °C | (ASTM D3418) |
| Glass Transition (Tg) | 60 °C | 55–60 °C | - | (ASTM D3418) | |
| Fusion Temperature (Tm) | 145–160 °C | 165–180 °C | 190 °C | (ASTM D3418) |