Table 6.
Effects of LS ratios as a char forming agent for the flame retardancy of RPU/LS foams.
| Sample | THR (MJ/m2) |
HRR (kW m2) |
EHC (MJ/kg) |
PMLR (g/s) |
tPCO2 (s) |
|---|---|---|---|---|---|
| RPU/LS0.5 | 39.3 | 65.9 | 17.4 | 0.35 | 118 |
| RPU/LS1 | 27.4 | 46.0 | 17.0 | 0.26 | 596 |
| RPU/LS1.5 | 32.6 | 54.6 | 16.9 | 0.44 | 563 |
| RPU/LS2 | 32.5 | 54.5 | 19.3 | 0.61 | 205 |
| RPU/LS3 | 28.2 | 47.4 | 18.8 | 0.29 | 366 |
| RPU/LS4 | 39.6 | 66.5 | 18.5 | 0.29 | 565 |
THR: total heat release; HRR: heat release rate; EHC: effective heat combustion; PMLR: peak of mass loss rate; tPCO2: time to peak carbon dioxide.