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Combustion data of untreated and LbL-treated PET by flame spread tests according to the ASTM D6413 standard [25].
| Sample | Burning time [s] | Afterflame time [s] | Dripping | Weight loss [%] |
|---|---|---|---|---|
| PET (171 g/m2) | 32 | 20 | YES | 8 |
| 5 BL | 10 | - | NO | 1 |
| 10 BL | 2 | - | NO | - |
| 20 BL | 10 | - | YES | 2 |
