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) |
|---|---|---|
| 15.0 | 0.092 | 0.004 |
| 65.0 | 0.112 | 0.005 |
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.
Cone Calorimeter Test Notes:
Test HF50_R1 was conducted with a calcium silicate substrate.
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.
Test HF50_R1 was conducted with a calcium silicate substrate.
Cone Calorimeter: 25 kW/m2
| 25 kW/m² R1 | 25 kW/m² R2 | 25 kW/m² R3 | |
|---|---|---|---|
| Time to Sustained Ignition (s) | 80.00 | 79.75 | 80.75 |
| Time to Peak HRRPUA (s) | 30.00 | 34.25 | 33.25 |
| Peak HRRPUA (kW/m²) | 707.60 | 761.82 | 785.98 |
Cone Calorimeter: 50 kW/m2
| 50 kW/m² R1 | 50 kW/m² R2 | 50 kW/m² R3 | 50 kW/m² R4 | |
|---|---|---|---|---|
| Time to Sustained Ignition (s) | 29.75 | 32.50 | 31.50 | 30.50 |
| Time to Peak HRRPUA (s) | 33.00 | 40.25 | 33.50 | 40.25 |
| Peak HRRPUA (kW/m²) | 764.22 | 899.43 | 888.18 | 970.46 |
Cone Calorimeter: 75 kW/m2
| 75 kW/m² R1 | 75 kW/m² R2 | 75 kW/m² R3 | |
|---|---|---|---|
| Time to Sustained Ignition (s) | 17.75 | 17.00 | 18.25 |
| Time to Peak HRRPUA (s) | 32.50 | 26.25 | 30.25 |
| Peak HRRPUA (kW/m²) | 1127.25 | 1142.65 | 1169.14 |
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.
Test HF50_R1 was conducted with a calcium silicate substrate.
| Incident Heat Flux [kW/m²] | Mean CO Yield [g/g] | CO Yield Std. Dev. [g/g] |
|---|---|---|
| 25 | 0.045 | 0.001 |
| 50 | 0.045 | 0.0 |
| 75 | 0.047 | 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.
Test HF50_R1 was conducted with a calcium silicate substrate.
| Incident Heat Flux [kW/m²] | Mean Soot Yield [g/g] | Soot Yield Std. Dev. [g/g] |
|---|---|---|
| 25 | 0.065 | 0.002 |
| 50 | 0.071 | 0.004 |
| 75 | 0.067 | 0.001 |
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) | 17.85 | 20.98 | 16.62 | 18.48 | 1.84 |
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.
| 10 °C/min | |
|---|---|
| Mean Onset Temperature (°C) | 216 |
| Std. Dev. Onset Temperature (°C) | 3 |
| Mean Normalized MLR at Onset (1/s) | 3.56e-04 |
| Std. Dev. Normalized MLR at Onset (1/s) | 0.06e-04 |
| Mean Mass Fraction at Onset | 0.98 |
| Std. Dev. Mass Fraction at Onset | 0.00 |
| Mean Temperature at end of Decomposition (°C) | 450 |
| Std. Dev. Temperature at end of Decomposition (°C) | 1 |