Determination of Partition Coefficients of Selected Model Migrants between Polyethylene and Polypropylene and Nanocomposite Polypropylene

Table 5

Partition coefficient of polyethylene/polypropylene () at 60°C and 80°C for all substances studied.

Model migrant	Temperature	Time		Model migrant	Temperature	Time
Benzophenone		40 days	0.86	DPP		40 days	0.86
	60°C	55 days	0.84		60°C	55 days	1.02
		70 days	0.86			70 days	0.89
		25 days	1.08			25 days	1.21
	80°C	40 days	1.04		80°C	40 days	1.04
		60 days	1.03			60 days	1.16
DPBD		40 days	1.16	BHT		40 days	0.62
	60°C	55 days	1.15		60°C	55 days	0.66
		70 days	1.09			70 days	0.56
		25 days	1.36			25 days	0.90
	80°C	40 days	1.31		80°C	40 days	0.67
		60 days	1.36			60 days	0.86
Uvitex OB		40 days	41.35	Bisphenol A		40 days	14.23
	60°C	55 days	16.43		60°C	55 days	14.13
		70 days	9.42			70 days	12.05
		25 days	6.26			25 days	8.19
	80°C	40 days	4.50		80°C	40 days	7.17
		60 days	3.61			60 days	5.70
ITX		40 days	0.99	Triclosan		40 days	0.88
	60°C	55 days	1.05		60°C	55 days	0.93
		70 days	0.99			70 days	0.91
		25 days	1.26			25 days	1.13
	80°C	40 days	1.07		80°C	40 days	1.12
		60 days	1.23			60 days	1.15