Table 4.
Glass transition Tg, and melting point Tm, of HDPE and PET and crystallinity of PET in blends. Single prints are indicated as ‘1×’ and three prints as ‘3×’, respectively.
| Name | Tg PET (°C) |
Tm HDPE (°C) |
Tm PET (°C) |
Xc PET | |
|---|---|---|---|---|---|
| 1st Heating | Cooling | ||||
| E-PET0 | 73.4 | - | 253.1 | 19% | 27% |
| E-PET2 | 75.6 | 128.3 | 252.3 | 20% | 27% |
| E-PET5 | 73.6 | 128.1 | 251.7 | 25% | 25% |
| E-PET10 | 74.0 | 129.1 | 252.2 | 23% | 26% |
| I-PET0 | 74.2 | - | 255.8 | 23% | 35% |
| I-PET5 | 75.1 | 129.4 | 256.4 | 16% | 32% |
| P-PET0 (1×) | 76.4 | - | 251.6 | 13% | 25% |
| P-PET2 (1×) | 74.8 | No signal | 252.3 | 19% | 25% |
| P-PET5 (1×) | 74.5 | 128.6 | 252.4 | 23% | 26% |
| P-PET10 (1×) | 73.9 | 128.5 | 252.3 | 22% | 27% |
| P-PET0 (3×) | 75.7 | - | 252.8 | 18% | 29% |
| P-PET2 (3×) | 73.9 | No signal | 252.8 | 18% | 27% |
| P-PET5 (3×) | 76.3 | 128.1 | 252.7 | 21% | 26% |
| P-PET10 (3×) | 75.9 | 129.3 | 253.7 | 22% | 27% |
| PET_C | 76.1 | - | - | 0% | 0% |
| PET_CR | 78.1 | - | - | 0% | 0% |
| P-PET_C (1×) | 68.4 | - | - | 0% | 0% |
| P-PET_CR (1×) | 79.2 | - | - | 0% | 0% |
| P-PET_C (3×) | 68.1 | - | - | 0% | 0% |
| P-PET_CR (3×) | 78.4 | - | - | 0% | 0% |