2. Thermal Properties of Electrospun PHBV-Based Biopapers .
| DSC
parameters |
TGA
parameters |
|||||||
|---|---|---|---|---|---|---|---|---|
| electrospun biopaper samples | Tm (°C) | ΔH m (J/g) | Tc (°C) | ΔH c (J/g) | Tonset (°C) | Tdeg (°C) | mass loss at T deg (%) | residual mass at 700 °C (%) |
| pure PHBV | 171.7 ± 1.5 | 104.4 ± 4.7 | 118.8 ± 0.7 | 106.6 ± 4.4 | 273.4 ± 4.3 | 285.7 ± 4.3 | 65.9 ± 1.0 | 1.2 ± 0.2 |
| PHBV + Res | 170.9 ± 0.6 | 79.2 ± 1.8 | 118.6 ± 0.1 | 84.1 ± 5.8 | 255.3 ± 10.2 | 269.4 ± 8.9 | 52.6 ± 5.9 | 0.9 ± 1.3 |
| PHBV/ChCl:EG | 170.8 ± 0.5 | 73.9 ± 4.4c | 118.3 ± 0.1 | 80.4 ± 4.6 | 226.9 ± 1.6 | 238.9 ± 0.5 | 47.5 ± 4.6 | 0.2 ± 0.3 |
| PHBV/ChCl:EG + Res | 171.3 ± 0.1 | 78.5 ± 14.6 | 117.5 ± 0.5 | 81.4 ± 15.4 | 228.8 ± 6.4 | 235.9 ± 5.6 | 51.7 ± 20.0 | 2.4 ± 0.1 |
a
Melting temperature (T m) and enthalpy of melting (ΔH m), crystallization temperature (T c), and enthalpy of crystallization (ΔH c) were obtained from DSC during the first heating, and cooling scans, respectively. The onset degradation temperature (T onset), degradation temperature (T deg), mass loss at T deg, and residual mass at 700 °C were obtained from TGA.
b-d
Different letters in the same column indicate a significant difference among the samples (p < 0.05).