Table 4.
Cone calorimetry flammability test results for EPDM composites.
| Sample | ti (s) | tf-0 (s) | HRR (kW/m2) | HRRMAX (kW/m2) | tHRRMAX (s) | THR (MJ/m2) | EHC (MJ/kg) | EHCMAX (MJ/kg) | AMLR (g/m2×s) | FIGRA (kW/m2×s) | MARHE (kW/m2) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EPDM0 | 104 | 398 | 222.5 | 968.1 | 210 | 65.9 | 36.2 | 79.3 | 12.56 | 4.61 | 215.2 |
| EPDM1 | 144 | 523 | 152.1 | 425.9 | 250 | 57.7 | 33.8 | 69.4 | 5.06 | 1.70 | 137.7 |
| EPDM2 | 143 | 503 | 145.9 | 347.7 | 240 | 52.5 | 30.2 | 79.6 | 4.96 | 1.44 | 132.9 |
| EPDM3 | 96 | 434 | 191.4 | 442.4 | 200 | 64.0 | 34.1 | 78.1 | 6.05 | 2.21 | 191.5 |
| EPDM4 | 106 | 447 | 194.1 | 409.7 | 205 | 66.1 | 35.4 | 72.6 | 3.38 | 1.99 | 181.7 |
| EPDM5 | 117 | 330 | 176.7 | 399.9 | 185 | 37.1 | 22.2 | 70.9 | 13.38 | 2.16 | 129.3 |
| EPDM6 | 113 | 327 | 175.3 | 389.1 | 180 | 37.6 | 23.5 | 60.5 | 14.28 | 2.16 | 134.7 |
| EPDM7 | 102 | 427 | 142.8 | 368.1 | 175 | 46.6 | 29.3 | 63.5 | 8.76 | 2.10 | 148.3 |
| EPDM8 | 113 | 380 | 164.5 | 340.5 | 190 | 43.7 | 28.3 | 73.3 | 9.46 | 1.79 | 131.4 |
| EPDM9 | 125 | 378 | 191.1 | 399.5 | 210 | 48.6 | 30.2 | 79.8 | 10.72 | 1.90 | 145.9 |
| EPDM10 | 110 | 382 | 186.7 | 385.1 | 215 | 51.2 | 31.0 | 72.8 | 10.59 | 1.79 | 153.4 |
| EPDM11 | 107 | 457 | 143.7 | 320.7 | 225 | 50.2 | 28.9 | 79.8 | 7.74 | 1.42 | 135.2 |
| EPDM12 | 85 | 421 | 143.3 | 323.8 | 180 | 48.7 | 29.1 | 72.9 | 8.22 | 1.79 | 145.7 |
ti—time to ignition; tf-0—time to flameout; HRR—heat release rate; HRRMAX—maximum heat release rate; tHRRMAX—time to maximum heat release rate; THR—total heat release; EHC—effective heat of combustion; EHCMAX—maximum effective heat of combustion; AMLR—average mass loss rate; FIGRA—HRRMAX/tHRRMAX; MARHE—maximum average heat of emission.