3.1. Permeation of water vapour, oxygen, and carbon dioxide
The measured permeabilities of the films with different
blow moulding ratios for water vapour (PV), oxygen (PO)
and carbon dioxide (PD) are illustrated in Figs. 1, 2, and 3,
respectively, while the corresponding results of the
measurement analysis are summarised in Tables 2–4. The
acronymWO means the values of PV, PO, and PD of the nonblown
films made of individual nanocomposites, being
references for the permeabilities of the blown films. N
stands for a non-blown film, and X for the cases when
statistical tests indicated non-significant differences
between the permeability of a given sample and the value
of WO.