Table 1.
AFO material properties:
| Description | Unfilled Polypropylene | Accura SI 40 | Somos® 9120 UV |
|---|---|---|---|
| Tensile Strength (MPa) | 31 - 37.2 | 57.2 - 58.7 | 30 -32 |
| Elongation (%) | 7 - 13 | 4.8 - 5.1 | 15 - 25% |
| Young's Modulus (GPa) | 1.1 - 1.5 | 2.6 - 3.3 | 1.2 - 1.4 |
| Flexural Strength (MPa) | 41 - 55 | 93.4 - 96.1 | 41 - 46 |
| Flexural Modulus (MPa) | 1172 - 1724 | 2836 - 3044 | 1310 - 1455 |
a) polypropylene used with the standard, prefabricated AFO); b) Accura SI 40 used with the rigid RP AFO and c) the epoxy photopolymer Somos 9120 used with the flexible RP AFO.