Table 3.
Summary of the main thermal properties of the bio-based polyethylene terephthalate (bio-PET)/recycled cotton fiber (RCF) composite pieces in terms of: glass transition temperature (Tg), cold crystallization temperature (Tcc), melting temperature (Tm), cold crystallization enthalpy (ΔHcc), melting enthalpy (ΔHm), and degree of crystallinity (Xc).
| Piece | Tg (°C) | Tcc (°C) | Tm (°C) | ΔHcc (J·g−1) | ΔHm (J·g−1) | Xc (%) |
|---|---|---|---|---|---|---|
| Bio-PET100 | 81.3 ± 0.9 | 155.6 ± 0.9 | 245.6 ± 1.4 | 9.4 ± 0.1 | 26.2 ± 1.9 | 25.4 ± 1.4 |
| Bio-PET99/RCF01 | 81.4 ± 0.4 | - | 248.6 ± 0.8 | - | 35.6 ± 2.5 | 25.7 ± 1.8 |
| Bio-PET98/RCF02 | 80.7 ± 0.6 | - | 248.4 ± 0.4 | - | 36.5 ± 2.0 | 26.6 ± 1.5 |
| Bio-PET97/RCF03 | 79.0 ± 2.7 | - | 247.1 ± 0.5 | - | 38.4 ± 1.9 | 28.2 ± 1.4 |
| Bio-PET96/RCF04 | 80.1 ± 1.8 | - | 248.5 ± 0.3 | - | 38.8 ± 1.4 | 28.8 ± 1.1 |
| Bio-PET95/RCF05 | 79.2 ± 0.2 | - | 248.1 ± 0.6 | - | 38.5 ± 0.3 | 29.0 ± 0.2 |
| Bio-PET90/RCF10 | 79.4 ± 0.1 | - | 249.2 ± 0.4 | - | 35.0 ± 0.1 | 27.8 ± 0.1 |