Investigation Of Effects Of Alum And Potassium Sesquicarbonate On The Fire Characteristics Of Flexible Polyurethane Foam

  LIST OF FIGURES 

Fig. 1:       The combustion process.
Fig. 2:       Basic unit in a urethane block copolymer. 
Fig. 3:       Structure-property relationships in polyurethane. 
Fig. 4:       Thermogravimetric analyzer 
Fig. 5 :       Effects of flame retardants on Ignition time.
Fig. 6 :       Effects of flame retardants on burn length
Fig. 7 :       Effects of flame retardants on flame propagation rate 
Fig. 8:       Effects of flame retardants on flame duration 
Fig. 9 :       Effects of flame retardants on char formation 
Fig. 10 :     Effects of flame retardants on After glow time
Fig. 11 :     Effects of flame retardants on Add - on 
Fig. 12 :     Effects of flame retardants on the maximum temperature of degradation 
Fig. 13 :     Effects of flame retardants on onset of thermal degradation time. 
Fig. 14 a:   Effects of alum on the 1st  step of thermal degradation. 
Fig. 14b:   Effects of potassium sesquicarbonate on the 1st step of thermal degradation. 
Fig. 15a:   Effects of alum on the 2nd  step of thermal degradation. 
Fig. 15b:   Effects of potassium sesquicarbonate on the 2nd step of thermal degradation. 
Fig. 16:     Effects of flame retardants on duration of thermal degradation.
Fig. 17a:   Effects of alum on the 1st  step of energy of degradation. 
Fig. 17b:   Effects of potassium sesquicarbonate on the 1st step of energy of degradation. 
Fig. 18a:   Effects of alum on the 2nd  step of energy of degradation. 
Fig. 18b:   Effects of potassium sesquicarbonate on the 2nd step of energy of degradation.