The kinetics of gas transport through bi-layer membranes consisting of self-assembled cellulose nanofibrils (CNF) on polylactic acid (PLA) support was studied by gas phase permeation techniques: their gas barrier properties were explained thanks to depth-profiled PALS (Positron Annihilation Lifetime Spectroscopy) measurements. CNF were then dispersed at different concentration in PLA matrix: these nano-composite were also studied with PALS and gas permeation. The gas barrier properties of CNF-PLA bi-layer will be reviewed and the new results on nano-composite discussed.
Influence of filler content on free volumes structure and gas transport properties of biopolymer nanocomposites
Roberto S. Brusa, Riccardo Checchetto, Werner Egger; Influence of filler content on free volumes structure and gas transport properties of biopolymer nanocomposites. AIP Conf. Proc. 27 December 2019; 2182 (1): 050005. https://doi.org/10.1063/1.5135848
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