Table 3.
Summary of mechanical and thermal properties of the reviewed TPFRP composites and recycled composites.
| System (Polymers, Composites, Recyclates) | Tm (°C) |
Td (°C) |
E (GPa) |
TS (MPa) |
εmax (%) |
FM (GPa) |
FS (MPa) |
IS (kJ/m2) |
Ref |
|---|---|---|---|---|---|---|---|---|---|
| PLA/CCF (3D printed) | 20.6 | 256 | 14.5 | 210 | 34.5 | [56] | |||
| Recycled (3D printed) | 20.6 | 262 | 13.3 | 263 | 38.7 | ||||
| PA66/CF pristine | 266 | 378 | 23.5 | 236 | 1.7 | [67] | |||
| Aged composite | 266 | 385 | 20.2 | 198 | 2.0 | ||||
| Recycled composite | 266 | 381 | 20.5 | 188 | 1.7 | ||||
| Recycled PP/GF b | ≈9.5 | ≈50 | ≈8 | ≈100 | ≈13 | [68] | |||
| Recycled PP/GF sandwich c | ≈14 | ≈200 | ≈17.5 | ≈380 | ≈120 | ||||
| Recycled PA6/CF b | ≈18 | ≈100 | ≈15 | ≈200 | ≈20 | ||||
| Recycled PA6/CF sandwich c | ≈33 | ≈400 | ≈43 | ≈700 | ≈43 | ||||
| Injection molded recycled PP/GF | ≈16.3 | ≈90 | |||||||
| Recycled PA66/GF (3 times) | 252 | 351 | 6.7 | 100 | 4.2 | [69] | |||
| PP/CF | 166 a | 44.0 | 285 | 0.69 | [14] | ||||
| Recycled composite (2 times) | 165 a | 42.8 | 396 | 0.99 | |||||
| PA6/CF | 218 a | 60.2 | 695 | 1.16 | [70] | ||||
| Recycled composite (2 times) | 218 a | 36.3 | 414 | 1.12 | |||||
| Ground Elium®/GF + recycled Elium® + PMMA | 12.1 | 150 | [21] | ||||||
| 7.5 wt % recycled Elium®/CF | ≈14 | ≈500 | [72] |
(a) values for virgin polymer or recycled virgin polymer; (b) sheets from compression molding of ground composite scraps; (c) sandwich panels with recycled core and virgin outer layers; Tm, melting temperature; Td, degradation temperature; E, Young’s modulus; TS, tensile strength; εmax, elongation at break; FM, flexural modulus; FS, flexural strength; IS, impact strength.