Hydrothermal Synthesis of Lanthanum-Doped MgAl-Layered Double Hydroxide/Graphene Oxide Hybrid and Its Application as Flame Retardant for Thermoplastic Polyurethane

Table 2

Cone calorimeter data of TPU and TPU composites.

Sample	PHRR (kW/m^2)	THR (MJ/m^2)	AvHRR (kW/m^2)	AvEHC (MJ/kg)	AvMLR (g/s)	PSPR (m^2/s)	TSP (m^2)	AvSEA (m^2/kg)	PCOY (kg/kg)	PCO2Y (kg/kg)
TPU	1103	139.1	261.2	15.6	0.089	0.100	13.22	159.6	0.090	8.802
TPU1	846	139.6	283.8	16.3	0.092	0.061	10.62	142.5	0.063	8.537
TPU2	769	140.3	237.2	15.8	0.078	0.055	11.06	129.2	0.043	8.502
TPU3	738	140.0	209.8	13.3	0.068	0.049	10.76	106.0	0.006	0.172