Skip to main content
. 2024 Jul 2;14:15236. doi: 10.1038/s41598-024-65136-8

Table 2.

Non-isothermal TGA measurements of AGBs free and based on BLs of RS from NaOH, NaOH-BH and KOH–NH4OH pulping reagents.

Sample code Temp. range DTG peak Wt. remain at 450 °C, % n order R Se Ea (kJ/mol)
AGB 1st 50–131.2 79.5 22.58
2nd 189.9–512.1 293.7 1.5 0.974 0.184 232.7
232.7
AGB1 1st 38.7–154.2 80.3 34.2
2nd 195.7–373.9 266.6 2 0.958 0.218 117.766
3rd 373.6–562.2 447.8 2 0.949 0.228 187.002
304.768
BL1 1st 63.7–141.8 98.8 73.78
2nd 142.2–219.3 184.9 2 0.961 0.2 173.153
3rd 217.8–290.4 246.5 2 0.948 0.215 227.784
400.937
AGB2 1st 31.6–147.0 71.8 79.8
2nd 206.1–379.2 287.1 2 0.959 0.213 123.407
3rd 379.3–496.0 433.7 2 0.936 0.229 252.337
375.744
BL2 1st 50.1–192.8 126.6 75.85
2nd 206.5–356.5 278.4 2 0.9707 0.193 145.227
3rd 356.4–506.6 444.6 2 0.942 0.231 196.806
4th 521.8–576.3 549.8 2 0.951 0.206 718.612
1060.645
AGB3 1st 39.9–118.9 81.1 67.05
2nd 217.8–371.0 280.5 2 0.958 0.211 131.618
3rd 375.0–534.6 443.9 2 0.953 0.222 217.286
348.904
BL3 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