Enhanced water vapor barrier properties for biopolymer films by polyelectrolyte multilayer and atomic layer deposited Al2O3 double-coating

Commercial polylactide (PLA) films are coated with a thin (20nm) non-toxic polyelectrolyte multilayer (PEM) film made from sodium alginate and chitosan and additionally with a 25-nm thick atomic layer deposited (ALD) Al2O3 layer. The double-coating of PEM+Al2O3 is found to significantly enhance the...

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Veröffentlicht in:	Applied surface science 2011-09, Vol.257 (22), p.9451-9454
Hauptverfasser:	HIRVIKORPI, Terhi, VÄHÄ-NISSI, Mika, HARLIN, Ali, SALOMAKI, Mikko, AREVA, Sami, KORHONEN, Juuso T, KARPPINEN, Maarit
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum oxide Barriers Biological and medical sciences Condensed matter: electronic structure, electrical, magnetic, and optical properties Deposition Exact sciences and technology Fundamental and applied biological sciences. Psychology General aspects Hydrophobicity Molecular biophysics Multilayers Physics Polyelectrolytes Sodium alginate Water vapor
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