Table 3.
TGA kinetic parameters of BLs from other pulping agents rather than NaOH.
Sample code | Temp. range | DTG peak | Wt. remain % at 450℃ | n order | R | Se | Ea | |
---|---|---|---|---|---|---|---|---|
BL5 | 1st | 86.0–152.7 | 118.5 | 76.37 | – | – | – | – |
2nd | 223.5–366.6 | 286.5 | 2 | 0.969 | 0.193 | 158.661 | ||
3rd | 425.0–485.1 | 443.6 | 1.5 | 0.931 | 0.196 | 410.382 | ||
569.042 | ||||||||
BL6 | 1st | 40.8–131.9 | 87.4 | 70.79 | – | – | – | – |
2nd | 141.1–357.5 | 231.6 | 2 | 0.968 | 0.23 | 102.468 | ||
3rd | 431.0–507.7 | 472.2 | 2 | 0.939 | 0.219 | 405.773 | ||
508.241 | ||||||||
BL7 | 1st | 42.3–122.9 | 80.4 | 85.49 | – | – | – | – |
2nd | 152.7–229.9 | 198.4 | 2 | 0.972 | 0.213 | 227.420 | ||
3rd | 271.8–330.0 | 294.4 | 2 | 0.936 | 0.22 | 305.936 | ||
4th | 517.0–551.2 | 538.6 | 2 | 0.942 | 0.2 | 1127.694 | ||
1661.050 | ||||||||
BL8 | 1st | 54.7–138.9 | 78.9 | 88.37 | – | – | – | – |
2nd | 163.37–199.6 | 188.9 | 2.5 | 0.968 | 0.232 | 465.951 | ||
3rd | 199.6–229.4 | 204.7 | 1.5 | 0.939 | 0.184 | 361.524 | ||
4th | 229.3–308.1 | 266.9 | 2 | 0.945 | 0.216 | 217.936 | ||
1045.411 | ||||||||
BL9 | 1st | 50.9–148.2 | 83.3 | 90.15 | – | – | – | – |
2nd | 182.1–304.9 | 236.6 | 2 | 0.972 | 0.194 | 164.143 | ||
3rd | 388.3–459.1 | 429.9 | 2 | 0.942 | 0.215 | 388.181 | ||
4th | 478.2–537.6 | 506.1 | 2 | 0.942 | 0.212 | 574.737 | ||
1127.061 |