TWB 04/14 PET-Flaschen mit aktiver Barriere
Die Anwendung sauerstoffabsorbierender AdditiveBottles made of mixtures from PET and an oxygen scavenger additive have a lower oxygen permeability than bottles made of PET alone. For the experiments PET was blended with the oxygen scavenger poly(meta-xylyleneadipamide) (MXD6) in concentrations of 2, 5 and 8 weight-%. Bottles made thereof were stored at 23 °C, 38 °C and 55 °C. A higher scavenger concentration leads to a longer shelf-life. At an elevated temperature the capacity is exhausted after shorter time.
Keywords: PET, oxygen scavenger, active barrier.
Schlagworte: PET, Sauerstoffabsorber, aktive Barriere.