Table 10.
Flammability and cone calorimetry (under 35 kW/m2) data for PET treated by CNa- and TNT-based LbL coatings [46].
| Sample | Horizontal flame spread test | Cone calorimetry | |||||
|---|---|---|---|---|---|---|---|
| Add-on [%] | Burning rate [mm/s] | Dripping | TTI ± σ [s] | PHRR ± σ [kW/m2] | THR ± σ [MJ/m2] | Char yield ± σ [%] | |
| PET (170 g/m2) | - | 1.5 | YES | 25 ± 3 | 117 ± 5 | 1.1 ± 0.1 | 27 ± 2 |
| 4 BL Chi/CNa | 2.1 | Not assessed | 17 ± 2 | 90 ± 6 | 1.0 ± 0.3 | 31 ± 1 | |
| 8 BL Chi/CNa | 3 | 1.9 | NO | 15 ± 2 | 73 ± 7 | 0.9 ± 0.2 | 34 ± 3 |
| 4 BL Chi/TNT | 5.1 | Not assessed | 17 ± 3 | 99 ± 9 | 1.0 ± 0.5 | 27 ± 3 | |
| 8 BL Chi/TNT | 7.2 | 1.6 | YES | 14 ± 4 | 84 ± 6 | 1.0 ± 0.2 | 30 ± 2 |
| 2 QL Chi/CNa/ Chi/TNT | 2 | Not assessed | 16 ± 2 | 77 ± 5 | 0.8 ± 0.1 | 35 ± 2 | |
| 4 QL Chi/CNa/ Chi/TNT | 4.1 | 2.0 | NO | 13 ± 2 | 61 ± 6 | 0.7 ± 0.3 | 42 ± 1 |