| Sample | T1H (ms) |
| Pure PVA | 312 |
| PVA + 0.1% TiO2 | 895 |
| PVA + 0.2% TiO2 | 307 |
| PVA + 0.3% TiO2 | 276 |
| PVA + 0.1% ZnO | 341 |
| PVA + 0.2% ZnO | 150 |
| PVA + 0.3% ZnO | 132 |
| PVA + 0.1% ZrO2 | 1190 |
| PVA + 0.2% ZrO2 | 945 |
| PVA + 0.3% ZrO2 | 823 |