Research Article
The Synergy of Nanosilica and Zinc Diethyl Hypophosphite Influences the Flame Retardancy and Foaming Performance of Poly(Ethylene Terephthalate)
Table 5
Activation energy of various products during thermal decomposition calculated by isoconversional method.
| | α/% | 10Z | 10Z/1S | 10Z/3S | 10Z/5S | | (KJ/mol) | | P (%) | (KJ/mol) | | P (%) | (KJ/mol) | | P (%) | (KJ/mol) | | P (%) |
| | 10 | 265 | 0.99 | 7.9 | 228 | 0.99 | -9.0 | 218 | 0.99 | -6.8 | 221 | 0.98 | -7.9 | | 15 | 251 | 0.97 | 2.3 | 238 | 0.96 | -5.2 | 221 | 0.93 | -5.4 | 224 | 0.96 | -6.5 | | 20 | 230 | 0.98 | -6.3 | 278 | 0.90 | 10 | 227 | 0.97 | -3.1 | 237 | 0.99 | -1.0 | | 25 | 215 | 0.99 | -12 | 265 | 0.93 | 5.8 | 252 | 0.99 | 7.9 | 250 | 0.98 | 4.4 | | 30 | 254 | 0.99 | 3.6 | 263 | 0.96 | 4.7 | 256 | 0.99 | 9.6 | 257 | 0.99 | 7.4 | | 35 | 234 | 0.99 | -4.6 | 262 | 0.99 | 4.5 | 239 | 0.99 | 2.3 | 241 | 0.99 | 0.4 | | 40 | 241 | 0.99 | -1.7 | 259 | 0.99 | 3.3 | 230 | 0.99 | -1.5 | 259 | 0.99 | 8.3 | | 45 | 259 | 0.99 | 5.7 | 253 | 0.99 | 0.7 | 251 | 0.99 | 7.2 | 234 | 0.99 | -2.5 | | 50 | 247 | 0.97 | 0.8 | 254 | 0.99 | 1.4 | 233 | 0.99 | -0.2 | 250 | 0.99 | 4.4 | | 55 | 245 | 0.99 | -0.2 | 238 | 0.95 | -5.2 | 234 | 0.98 | 0.1 | 251 | 0.99 | 4.7 | | 60 | 254 | 0.97 | 3.5 | 255 | 0.99 | 1.7 | 217 | 0.99 | -7.1 | 227 | 0.99 | -5.4 | | 65 | 251 | 0.98 | 2.3 | 234 | 0.94 | -6.6 | 254 | 0.92 | 8.6 | 236 | 0.93 | -1.6 | | 70 | 246 | 0.99 | 0.2 | 225 | 0.99 | -10 | 211 | 0.99 | -9.8 | 228 | 0.95 | -4.7 | | 75 | 242 | 0.99 | -1.5 | 260 | 0.98 | 3.6 | 230 | 0.99 | -1.7 | — | — | — | | 245 | 251 | 234 | 240 |
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“P” represents the percentage error between the activation energy and the average activation energy.
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