Table 1 The comparison of thermal characteristics of initial chitosan, clinoptilolite, saponite, and synthesized composites of partially crosslinked chitosan and minerals
Material | T max, °C (DTG) | ∆m, % (TG) | ∆m total, % (TG) | T max, °C (DSC) | m/z (MS) |
---|---|---|---|---|---|
Chitosan | 76 295 500 | 2.13 51.94 37.67 | 93 | 300 400 | 12 16 18 30 44 |
Partially crosslinked chitosan-clinoptilolite | 123 280 500 | 5.45 6.53 4.47 | 16.5 | 320 515 850 | 12 16 18 44 |
Clinoptilolite | 159 | 7.19 1.59 | 8.77 | 400 860 | 16 18 |
Partially crosslinked chitosan-saponite | 108 277 344 443 515 824 | 4.70 7.04 3.27 5.19 | 20 | 350 450 510 860 | 12 16 18 22 30 41 44 |
Saponite | 145 541 686 816 | 2.63 3.48 0.72 | 9.5 | 220 320 590 730 860 | 12 16 18 44 |