Characterization of Functionalized Polyurethane Foam for Lead Ion Removal from Water

Table 1

Foam composition based on various processing variables.

Variable	Sample	PPG (g)	TDI (g)	BES (g)	DMSO (g)	DBTL (g)	Surfactant (g)	Water (g)	CERT (min)
BES/DMSO	A1	50	18.3	0	0	2	0.25	6	40
	A2			3.4	7.8
	A3			6.7	15.7
	A4			10.1	23.5
PPG/TDI	B5	50	9.1	6.7	15.7	2	0.25	6	40
	B6		18.3
	B7		27.4
CERT	C9	50	18.3	6.7	15.7	2	0.25	6	60
	C8								40
	C10								90