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Material properties.
| Material | Crystal Type | Density (g/cm3) | Melt Point (°C) | Specific Heat Capacity (KJ/Kg·°C) | Elastic Modulus (Gpa) | Acoustic Impedance (105 Pa·s∙m−1) |
|---|---|---|---|---|---|---|
| PMMA | Amorphous | 1.19 | 130~140 | 1.465 | 3.3 | 32.00 |
| PP | Semi-crystalline | 0.91 | 175 | 1.926 | 0.9 | 11.10 |
| PA66 | Crystalline | 1.14 | 252 | 1.675 | 2.6 | 2.90 |
