Table 2. Cone Calorimetry Data of PA6 and Its Composites with Different Weight Percentages of ZrP and f-ZrP Obtained from the Flammability Testa.
| sample | PHRR (kW m–2) | TTI (s) | tPHRR (s) | THR (MJ m–2) | FGI (kW m–2·s–1) | COP (mg/s) | CO2P (mg/s) | TSP (m2/kg) | TSR (m2/m2) | t1/t2 | melt dripping | UL-94 rating |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PA6 | 443.8 | 183.8 | 336 | 118.2 | 1.32 | 3.9 | 326 | 4.36 | 434 | 24/- | Y | NR |
| PA6/ZrP-10% | 398.6 | 155.4 | 372 | 111.4 | 1.07 | 3.6 | 262 | 3.72 | 373 | 11/8 | Y | NR |
| PA6/f-ZrP-3% | 338.1 | 134.6 | 319 | 90.4 | 1.02 | 3.3 | 241 | 2.52 | 254 | 7/6 | N | V-2 |
| PA6/f-ZrP-5% | 301.3 | 140.5 | 305 | 87.3 | 0.94 | 3.1 | 243 | 2.10 | 230 | 6/5 | N | V-2 |
| PA6/f-ZrP-10% | 258.5 | 132.5 | 311 | 82.2 | 0.81 | 2.5 | 217 | 2.06 | 209 | 3/2 | N | V-0 |
a
PHRR, peak heat release rate; TTI, time to ignition; THR, total heat release; TSR, total smoke release; FGI, fire growth index (FGI = PHRR/tPHRR); t1, application of 1st 10 s flame; t2, application of 2nd 10 s flame; NR, no rating.