Influence of Organoclay on the Flame Retardancy and Thermal Insulation Property of Expandable Graphite/Polyurethane Foam

Table 2

Flame-retardant and physical properties of RPUF composites.

No.	Sample	HB-rating	V-rating	LOI (vol%)	Stress at 10% strain (Mpa)	Thermal conductivity (W·m^−1·K^−1)
1	Pure RPUF	300 mm/min. –fail	Fail	20.2	0.2464	0.028
2	EG5-RPUF	HB	Fail	23.7	0.2421	0.036
3	EG10-RPUF	HB	V-0	25.9	0.2367	0.047
4	EG15-RPUF	HB	V-0	28.1	0.2313	0.053
5	EG15-20A2.5-RPUF	HB	V-0	28.5	0.2485	0.048
6	EG15-20A5-RPUF	HB	V-0	28.7	0.2536	0.041
7	EG17.5-RPUF	HB	V-0	29.2	0.2284	0.055
8	EG17.5-20A2.5-RPUF	HB	V-0	29.4	0.2426	0.05
9	EG20-RPUF	HB	V-0	30.5	0.2217	0.058