Research Article
Determination of Partition Coefficients of Selected Model Migrants between Polyethylene and Polypropylene and Nanocomposite Polypropylene
Table 6
Partition coefficient of polyethylene/nanocomposite polypropylene (
) at 60°C and 80°C for all substances studied.
| Model migrant | Temperature | Time | | Model migrant | Temperature | Time | |
| Benzophenone | | 40 days | 0.35 | DPP | | 40 days | 0.13 | 60°C | 55 days | 0.33 | 60°C | 55 days | 0.07 | | 70 days | 0.34 | | 70 days | 0.10 | | 25 days | — | | 25 days | 0.10 | 80°C | 40 days | 0.48 | 80°C | 40 days | 0.09 | | 60 days | 0.45 | | 60 days | 0.12 |
| DPBD | | 40 days | 0.20 | BHT | | 40 days | 0.67 | 60°C | 55 days | 0.18 | 60°C | 55 days | 0.55 | | 70 days | 0.20 | | 70 days | 0.55 | | 25 days | — | | 25 days | 0.84 | 80°C | 40 days | 0.27 | 80°C | 40 days | 0.79 | | 60 days | 0.32 | | 60 days | 0.97 |
| Uvitex OB | | 40 days | 11.57 | Bisphenol A | | 40 days | 0.87 | 60°C | 55 days | 12.58 | 60°C | 55 days | 0.91 | | 70 days | 4.67 | | 70 days | 0.60 | | 25 days | — | | 25 days | — | 80°C | 40 days | 1.35 | 80°C | 40 days | 0.15 | | 60 days | 1.73 | | 60 days | 0.11 |
| ITX | | 40 days | 0.41 | Triclosan | | 40 days | 0.05 | 60°C | 55 days | 0.37 | 60°C | 55 days | 0.05 | | 70 days | 0.41 | | 70 days | 0.04 | | 25 days | 0.57 | | 25 days | — | 80°C | 40 days | 0.60 | 80°C | 40 days | 0.06 | | 60 days | 0.60 | | 60 days | 0.06 |
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