Abstract. 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 / Brusa, Roberto S.; Checchetto, Riccardo; Egger, Werner. - In: AIP CONFERENCE PROCEEDINGS. - ISSN 0094-243X. - STAMPA. - 2202:(2019), p. 050005. (Intervento presentato al convegno ICPA 18 tenutosi a Orlando (USA) nel 18-24 Agosto 2018) [10.1063/1.5135848].
Influence of filler content on free volumes structure and gas transport properties of biopolymer nanocomposites
Brusa, Roberto S.;Checchetto, Riccardo;
2019-01-01
Abstract
Abstract. 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.| File | Dimensione | Formato | |
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ICPA 18 AIP Proceedings- Brusa.pdf
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