Reducing Water Vapor Permeability of Poly(lactic acid) Film and Bottle through Layer-by-Layer Deposition of Green-Processed Cellulose Nanocrystals and Chitosan

Reducing Water Vapor Permeability of Poly(lactic acid) Film and Bottle through Layer-by-Layer Deposition of Green-Processed Cellulose Nanocrystals and Chitosan

Layer-by-layer electrostatic self-assembly technique was applied to improve the barrier properties of poly(lactic acid) (PLA) films and bottles. The LbL process was carried out by the alternate adsorption of chitosan (CH) (polycation) and cellulose nanocrystals (CNC) produced via ultrasonic treatmen...

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Veröffentlicht in:International Journal of Polymer Science 2015-01, Vol.2015 (2015), p.582-587-161
Hauptverfasser: Halász, Katalin, Csóka, Levente, Hosakun, Yanin
Format: Artikel
Sprache:eng
Schlagworte:
Acids
Barriers
Bottles
Cellulose
Chitosan
Computer numerical control
Deposition
Lactic acid
Nanocrystals
Nanomaterials
Nanoparticles
Packaging
Permeability
Self assembly
Ultrasonic treatment
Water
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Zusammenfassung:Layer-by-layer electrostatic self-assembly technique was applied to improve the barrier properties of poly(lactic acid) (PLA) films and bottles. The LbL process was carried out by the alternate adsorption of chitosan (CH) (polycation) and cellulose nanocrystals (CNC) produced via ultrasonic treatment. Four bilayers (on each side) of chitosan and cellulose nanocrystals caused 29 and 26% improvement in barrier properties in case of films and bottles, respectively. According to the results the LbL process with CH and CNC offered a transparent “green” barrier coating on PLA substrates.
ISSN:1687-9422
1687-9430
DOI:10.1155/2015/954290