Table 2 Characteristic parameters of collagen denaturation for historical samples before and after treatment
From: The effect of halloysite nanotubes dispersions on vegetable-tanned leather thermal stability
Sample | Micro DSC (collagen fibrils denaturation) | |||||||
|---|---|---|---|---|---|---|---|---|
Overall DSC peak parameters | Population 1 | Population 2 | ||||||
Tonset (°C) | Tmax (°C) | ΔH (J·g−1) | ΔT1/2 (°C) | Tmax1 (°C) | % | Tmax2 (°C) | % | |
Untreated | 63.1 ± 1.5 | 70.9 ± 1.8 | 17.0 ± 1.9 | 7.0 ± 0.5 | 68.2 ± 0.5 | 49 | 70.9 ± 0.8 | 51 |
HNT-beeswax | 65.9 ± 1.7 | 72.5 ± 0.6 | 17.2 ± 1.2 | 5.5 ± 0.3 | 69.1 ± 1.1 | 26 | 72.5 ± 0.6 | 74 |
HNT-PEG | 64.6 ± 1.0 | 72.3 ± 0.5 | 16.1 ± 1.6 | 3.1 ± 0.8 | 68.0 ± 0.6 | 15 | 72.3 ± 0.5 | 85 |
HNT-BNUTO | 64.2 ± 2.2 | 72.4 ± 1.2 | 18.2 ± 1.4 | 6.6 ± 0.4 | 69.1 ± 1.3 | 30 | 72.4 ± 1.2 | 70 |