Table 4.
Evaluation of surface antibacterial activity of Ag-ZnO polymer nanocomposites according to ISO 22196:2007 (E) [42].
| Sample | R-Value for S. aureus (-) | Efficiency against S. aureus (%) | R-Value for E. coli (-) | Efficiency against E. coli (%) |
|---|---|---|---|---|
| Neat PP100 | Ut = 5.4 | Ut = 6.2 | ||
| PP100/Ag-ZnO1 | 2.2 | 99.3690 | 4.2 | 99.9937 |
| PP100/Ag-ZnO3 | 4.6 | 99.9975 | 5.5 | 99.9997 |
| PP100/Ag-ZnO5 | 4.8 | 99.9984 | >6.2 | 99.9999 |
| Neat PP75 | Ut = 5.7 | Ut = 6.3 | ||
| PP75/Ag-ZnO1 | 0.7 | 80.0474 | 2.5 | 99.6838 |
| PP75/Ag-ZnO3 | 2.2 | 99.3690 | 5.5 | 99.9997 |
| PP75/Ag-ZnO5 | 2.8 | 99.8415 | >6.3 | 99.9999 |
| Neat PP50 | Ut = 5.9 | Ut = 6.3 | ||
| PP50/Ag-ZnO1 | 0.5 | 68.3772 | 1.5 | 96.8377 |
| PP50/Ag-ZnO3 | 1.8 | 98.4151 | 2.5 | 99.6838 |
| PP50/Ag-ZnO5 | 2.5 | 99.6838 | >6.3 | 99.9999 |