Table 3.
Thermal properties on cooling and second heating differential scanning calorimetry (DSC) scans of the samples.
| Processing Cycle Number | Sample | Cooling | Second Heating | ||
|---|---|---|---|---|---|
| Tc * (°C) | Tm * (°C) | ΔHm (J/g) | Χc (%) | ||
| 1 | PP | 114 | 166 | 91 | 44 |
| PP-Bag. | 122 | 163 | 75 | 45 | |
| PP-Bag. +alk. | 121 | 165 | 74 | 44 | |
| PP-Bag. +alk. +sil. | 118 | 166 | 99 | 59 | |
| 3 | PP | 116 | 165 | 101 | 49 |
| PP-Bag. | 119 | 165 | 80 | 49 | |
| PP-Bag. +alk. | 121 | 163 | 84 | 50 | |
| PP-Bag. +alk. +sil. | 122 | 165 | 100 | 60 | |
| 5 | PP | 114 | 166 | 95 | 46 |
| PP-Bag. | 121 | 164 | 75 | 46 | |
| PP-Bag. +alk. | 121 | 164 | 78 | 47 | |
| PP-Bag. +alk. +sil. | 121 | 162 | 83 | 50 | |
* Tc and Tm were taken at the maximum peak of crystallization and melting peaks.