Measured Data
Thermal Conductivity
Experiments for thermal conductivity [W/(m K)] were conducted using a heat flow meter on unconditioned and dried samples at 15 °C and either 45 °C or 65 °C.
Unconditioned
| Temperature (C) | Conductivity Mean (W/m-K) | Standard Deviation (W/m-K) |
|---|---|---|
| 25.0 | 0.038 | 0.0 |
| 30.0 | 0.039 | 0.0 |
| 35.0 | 0.040 | 0.0 |
| 40.0 | 0.041 | 0.0 |
| 45.0 | 0.042 | 0.0 |
Mass Loss Rate (MLR)
Initial-mass-normalized mass loss rate [1/s] was measured in the simultaneous thermal analyzer experiments at three heating rates: 3 K/min, 10 K/min, and 30 K/min and mass loss rate [g/s] in the cone calorimeter at three heat fluxes: 25 kW/m2, 50 kW/m2, and 75 kW/m2.
Simultaneous Thermal Analyzer
Cone Calorimeter: 25 kW/m2
Cone Calorimeter: 50 kW/m2
Cone Calorimeter: 75 kW/m2
Heat Release Rate Per Unit Area (HRRPUA)
Experiments for heat release per unit area [kW/m2] were conducted on samples conditioned at 20°C and 50% relative humidity using a cone calorimeter at three different heat fluxes: 25 kW/m2, 50 kW/m2, and 75 kW/m2.
Cone Calorimeter: 25 kW/m2
| 25 kW/m² R1 | 25 kW/m² R2 | 25 kW/m² R3 | |
|---|---|---|---|
| Time to Sustained Ignition (s) | 5.50 | 5.25 | 5.75 |
| Time to Peak HRRPUA (s) | 43.75 | 43.00 | 43.00 |
| Peak HRRPUA (kW/m²) | 479.87 | 444.94 | 450.86 |
Cone Calorimeter: 50 kW/m2
| 50 kW/m² R1 | 50 kW/m² R2 | 50 kW/m² R3 | |
|---|---|---|---|
| Time to Sustained Ignition (s) | 1.75 | 1.75 | 1.75 |
| Time to Peak HRRPUA (s) | 30.25 | 29.00 | 29.25 |
| Peak HRRPUA (kW/m²) | 870.86 | 918.90 | 1139.19 |
Cone Calorimeter: 75 kW/m2
| 75 kW/m² R1 | 75 kW/m² R2 | 75 kW/m² R3 | |
|---|---|---|---|
| Time to Sustained Ignition (s) | 1.50 | 1.50 | 1.00 |
| Time to Peak HRRPUA (s) | 24.50 | 24.25 | 24.25 |
| Peak HRRPUA (kW/m²) | 1185.46 | 1411.11 | 1278.14 |
Carbon Monoxide (CO) Yield
Carbon monoxide yield was measured during cone calorimeter experiments conducted at heat fluxes of 25 kW/m2, 50 kW/m2, and 75 kW/m2.
| Incident Heat Flux [kW/m²] | Mean CO Yield [g/g] | CO Yield Std. Dev. [g/g] |
|---|---|---|
| 25 | 0.014 | 0.002 |
| 50 | 0.011 | 0.0 |
| 75 | 0.013 | 0.001 |
Specific Heat Release Rate
Experiments for specific heat release rate [W/g], were conducted using a micro-scale combustion calorimeter at a heating rate of 30 K/min.
Derived Data
Soot Yield
Soot yield [g/g] was calculated from smoke obscuration data collected in cone calorimeter experiments conducted at heat fluxes of 25 kW/m2, 50 kW/m2, and 75 kW/m2.
| Incident Heat Flux [kW/m²] | Mean Soot Yield [g/g] | Soot Yield Std. Dev. [g/g] |
|---|---|---|
| 25 | 0.013 | 0.002 |
| 50 | 0.013 | 0.0 |
| 75 | 0.015 | 0.0 |
Effective Heat of Combustion (Δhc)
Effective heat of combustion [MJ/kg] is calculated from data collected in micro-scale combustion calorimeter experiments.
Micro-scale Combustion Calorimeter
| Value | R1 | R2 | R3 | Mean | Std. Dev. |
|---|---|---|---|---|---|
| Heat of Combustion (MJ/kg) | 25.4 | 25.15 | 25.7 | 25.42 | 0.22 |
Temperature at Onset of Decomposition
The temperature at onset of decomposition [Tonset] is a derived quantity computed from data collected in simultaneous thermal analyzer experiments.
| 3 °C/min | 10 °C/min | 30 °C/min | |
|---|---|---|---|
| Mean Onset Temperature (°C) | 239 | 252 | 281 |
| Std. Dev. Onset Temperature (°C) | 4 | 1 | 4 |
| Mean Normalized MLR at Onset (1/s) | 1.05e-03 | 1.00e-03 | 1.26e-03 |
| Std. Dev. Normalized MLR at Onset (1/s) | 0.15e-03 | 0.09e-03 | 0.05e-03 |
| Mean Mass Fraction at Onset | 0.98 | 0.98 | 0.98 |
| Std. Dev. Mass Fraction at Onset | 0.00 | 0.00 | 0.00 |
| Mean Temperature at end of Decomposition (°C) | 398 | 414 | 441 |
| Std. Dev. Temperature at end of Decomposition (°C) | 0 | 1 | 1 |