Table 3.
Thermal parameters of the bio-based high-density polyethylene (bio-HDPE) films containing different amounts of gallic acid (GA) in terms of melting temperature (Tm), normalized melting enthalpy (ΔHm), degree of crystallinity (XC), onset oxidation temperature (OOT), and oxidation induction time (OIT).
| Film | Tm (°C) | ΔHm (J·g−1) | XC (%) | OTT (°C) | OIT (min) |
|---|---|---|---|---|---|
| Bio-HDPE | 132.1 ± 0.3 | 160.6 ± 1.5 | 54.8± 0.8 | 226.3 ± 1.5 | 4.9 ± 0.3 |
| Bio-HDPE + 0.3GA | 132.4 ± 0.5 | 156.5 ± 1.4 | 53.4± 0.7 | 262.8 ± 2.1 | 60.8 ± 0.5 |
| Bio-HDPE + 0.8GA | 132.2 ± 0.7 | 152.7 ± 2.0 | 52.0 ± 0.9 | 270.2 ± 1.9 | 244.7 ± 1.0 |