Table 5 Thermal process in different temperature ranges of LDPE: RH (75:25).
First phase | Second phase | Third phase | |||||||
|---|---|---|---|---|---|---|---|---|---|
Heating rate (℃/min) | Initial temp | Final temp | Loss in weight (%) | Initial temp | Final temp | Loss in weight (%) | Initial temp | Final temp | Loss in weight (%) |
10 | 30.2 | 91.2 | 2.1 | 243 | 483 | 56 | 483 | 599 | 4 |
20 | 31.8 | 92.1 | 1.8 | 248 | 485 | 60 | 485 | 598 | 3.3 |
30 | 30.15 | 99 | 1.5 | 266 | 497 | 62 | 497 | 599 | 3.1 |
40 | 30.19 | 105 | 1.2 | 273 | 472 | 68 | 472 | 600 | 2.3 |