Table 1.

Composition of the foam precursors and the final residues of azodicarbonamide disperser in the final foams.

	Afro-A	Afro-b	Afro-c	Afro-d	Afro-e	Afroc + R
PE	98.6%	94.4%	89.3%	84.2%	79.3%	82.5%
AZO	1.2%	5.8%	10.5%	15.6%	20.5%	10.5%
AZO residue	-	-	-	-	-	6.6%
Octadecanoic acid	0.15%	0.15%	0.15%	0.15%	0.15%	0.15%
ZnO	0.05%	0.05%	0.05%	0.05%	0.05%	0.05%
Residues of azodicarbonamide in the polymer in the final foam
	Afro-A	Afro-b	Afro-c	Afro-d	Afro-e	Afroc + R
	0.8%	3.7%	6.8%	10.1%	13.2%	13.4%