Research Article
Kinetic Analysis of the Thermal Decomposition of Polymer-Bonded Explosive Based on PETN: Model-Fitting Method and Isoconversional Method
Table 3
Kinetic parameters from TG/DTG data of PBX-PN-85, PBX-PP-85, and PETN.
| | Material | β (K·min−1) | TG/DTG curve | | Tot (°C) | Ti (°C) | Tp (°C) | Mass loss (%) | Residue (%) |
| | PETN | 3.0 | 165.5 | 130.2 | 186.0 | 98.3 | 1.7 | | 5.0 | 169.6 | 132.0 | 191.1 | 97.2 | 2.8 | | 7.0 | 172.7 | 133.2 | 196.0 | 96.3 | 3.7 | | 10.0 | 178.9 | 135.6 | 200.8 | 96.0 | 4.0 |
| | PBX-PN-85 | 3.0 | 162.3 | 127.1 | 183.9 | 95.3 | 4.7 | | 5.0 | 166.8 | 129.8 | 188.2 | 94.4 | 5.6 | | 7.0 | 169.0 | 130.9 | 194.5 | 94.0 | 6.0 | | 10.0 | 175.3 | 133.5 | 198.8 | 93.1 | 6.9 |
| | PBX-PP-85 | 3.0 | 168.6 | 136.2 | 189.4 | 93.7 | 6.3 | | 5.0 | 172.5 | 138.0 | 194.2 | 93.1 | 6.9 | | 7.0 | 177.0 | 139.9 | 197.4 | 91.5 | 8.5 | | 10.0 | 183.2 | 142.5 | 203.6 | 91.9 | 8.1 |
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Tot—onset temperature of decomposition exotherm peak, Ti—the initial temperature of the mass loss, and Tp—the peak temperature of the DTG curve.
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