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

Terhi Hirvikorpi; Mika Vähä-Nissi; Ali Harlin; Mikko Salomäki; Sami Areva; Juuso T. Korhonen; Maarit Karppinen

doi:10.1016/j.apsusc.2011.06.031

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

Terhi Hirvikorpi
, Mika Vähä-Nissi^*
, Ali Harlin
, Mikko Salomäki
, Sami Areva
, Juuso T. Korhonen
, Maarit Karppinen

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

50 Citations (Scopus)

Abstract

Commercial polylactide (PLA) films are coated with a thin (20 nm) 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 water vapor barrier properties of the PLA film. The improvement is essentially larger compared with the case the PLA film being just coated with an ALD-grown Al₂O₃ layer. The enhanced water vapor barrier characteristics of the PEM + Al₂O₃ double-coated PLA films are attributed to the increased hydrophobicity of the surface of these films

Original language	English
Pages (from-to)	9451-9454
Journal	Applied Surface Science
Volume	257
Issue number	22
DOIs	https://doi.org/10.1016/j.apsusc.2011.06.031
Publication status	Published - 2011
MoE publication type	A1 Journal article-refereed

Keywords

Aluminum oxide
atomic layer deposition
layer-by-layer deposition
polyelectrolyte
polylactide
water vapor barrier

Access to Document

10.1016/j.apsusc.2011.06.031

https://publications.vtt.fi/julkaisut/muut/2011/Hirvikorpi_Revised.pdf

Cite this

@article{9f669b5f61604a6b98d2509504bae10e,

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

abstract = "Commercial polylactide (PLA) films are coated with a thin (20 nm) 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 water vapor barrier properties of the PLA film. The improvement is essentially larger compared with the case the PLA film being just coated with an ALD-grown Al2O3 layer. The enhanced water vapor barrier characteristics of the PEM + Al2O3 double-coated PLA films are attributed to the increased hydrophobicity of the surface of these films",

keywords = "Aluminum oxide, atomic layer deposition, layer-by-layer deposition, polyelectrolyte, polylactide, water vapor barrier",

author = "Terhi Hirvikorpi and Mika V{\"a}h{\"a}-Nissi and Ali Harlin and Mikko Salom{\"a}ki and Sami Areva and Korhonen, \{Juuso T.\} and Maarit Karppinen",

note = "Project code: 42240 ",

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doi = "10.1016/j.apsusc.2011.06.031",

language = "English",

volume = "257",

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journal = "Applied Surface Science",

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T1 - Enhanced water vapor barrier properties for biopolymer films by polyelectrolyte multilayer and atomic layer deposited Al2O3 double-coating

AU - Hirvikorpi, Terhi

AU - Vähä-Nissi, Mika

AU - Harlin, Ali

AU - Salomäki, Mikko

AU - Areva, Sami

AU - Korhonen, Juuso T.

AU - Karppinen, Maarit

N1 - Project code: 42240

PY - 2011

Y1 - 2011

N2 - Commercial polylactide (PLA) films are coated with a thin (20 nm) 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 water vapor barrier properties of the PLA film. The improvement is essentially larger compared with the case the PLA film being just coated with an ALD-grown Al2O3 layer. The enhanced water vapor barrier characteristics of the PEM + Al2O3 double-coated PLA films are attributed to the increased hydrophobicity of the surface of these films

AB - Commercial polylactide (PLA) films are coated with a thin (20 nm) 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 water vapor barrier properties of the PLA film. The improvement is essentially larger compared with the case the PLA film being just coated with an ALD-grown Al2O3 layer. The enhanced water vapor barrier characteristics of the PEM + Al2O3 double-coated PLA films are attributed to the increased hydrophobicity of the surface of these films

KW - Aluminum oxide

KW - atomic layer deposition

KW - layer-by-layer deposition

KW - polyelectrolyte

KW - polylactide

KW - water vapor barrier

U2 - 10.1016/j.apsusc.2011.06.031

DO - 10.1016/j.apsusc.2011.06.031

M3 - Article

SN - 0169-4332

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SP - 9451

EP - 9454

JO - Applied Surface Science

JF - Applied Surface Science

IS - 22

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