Table 1. Effects of Blowing Agent Type and Content (phr) on the Foam Density (g/cm3) and Weight Reduction Rate (%) of Nylon 6 Foams
| Sample Designation | Composition | Foam Density (g/cm3) | Weight Reduction Rate (%) |
| Nylon 6 | PTSS (phr) | 5-PT (phr) |
| Nylon 6 | 100 | 0 | | 1.14 | |
| NFs0.5 | 100 | 0.5 | | 1.1 | 3.5 |
| NFs1.0 | 100 | 1 | | 1.09 | 4.4 |
| NFs1,5 | 100 | 1.5 | | 1.06 | 7 |
| NFs2.0 | 100 | 2 | | 1.04 | 8.8 |
| NFs5.0 | 100 | 5 | | 0.92 | 19.3 |
| NFs7.0 | 100 | 7 | | 0.86 | 24.6 |
| NFs10 | 100 | 10 | | 0.71 | 37.7 |
| NFt0.5 | 100 | | 0.5 | 1.03 | 9.6 |
| NFt1.0 | 100 | | 1 | 0.98 | 14 |
| NFt1.5 | 100 | | 1.5 | 0.73 | 36 |
| NFt2.0 | 100 | | 2 | 0.55 | 51.8 |
| NFt5.0 | 100 | | 5 | 0.37 | 67.5 |
| NFt7.0 | 100 | | 7 | 0.26 | 77.2 |
| NFt10.0 | 100 | | 10 | 0.21 | 81.6 |