fig5

Figure 5. Flame-retardant performance of the different CPCMs: (A) digital photographs recorded during the direct-flame combustion test; (B) heat release rate curves; (C) smoke production rate curves; (D) total heat release curves; and (E) total smoke production curves obtained from cone calorimeter tests. PH: PEG/HDI; PEG: polyethylene glycol; HDI: hexamethylene diisocyanate; PHA: PEG/HDI/APP; APP: ammonium polyphosphate; PHH: PEG/HDI/HAPP; HAPP: hydroxylated ammonium polyphosphate; PHE: PEG/HDI/EG; EG: expanded graphite; PHAE: PEG/HDI/APP/EG; PHHE: PEG/HDI/HAPP/EG; HRR: heat release rate; SPR: smoke production rate; THR: total heat release; TSP: total smoke production.