Table 4 Thermal process in different temperature ranges of LDPE: RH (25:75).
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 | 96 | 3.7 | 256 | 500 | 70 | 502 | 599 | 4 |
20 | 31.8 | 104 | 3.2 | 249 | 510 | 77 | 510 | 600 | 3.1 |
30 | 30.15 | 107 | 2.8 | 266 | 530 | 75 | 530 | 606 | 2.4 |
40 | 30.19 | 111 | 2.1 | 273 | 560 | 76 | 560 | 600 | 2.3 |