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

Research output: Contribution to journalArticleScientificpeer-review

26 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 languageEnglish
Pages (from-to)9451-9454
JournalApplied Surface Science
Volume257
Issue number22
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

Fingerprint

Biopolymers
Steam
Polyelectrolytes
Water vapor
Multilayers
Coatings
Sodium alginate
Multilayer films
Chitosan
Hydrophobicity
poly(lactide)

Keywords

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

Cite this

Hirvikorpi, Terhi ; Vähä-Nissi, Mika ; Harlin, Ali ; Salomäki, Mikko ; Areva, Sami ; Korhonen, Juuso T. ; Karppinen, Maarit. / Enhanced water vapor barrier properties for biopolymer films by polyelectrolyte multilayer and atomic layer deposited Al2O3 double-coating. In: Applied Surface Science. 2011 ; Vol. 257, No. 22. pp. 9451-9454.
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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",
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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",
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Enhanced water vapor barrier properties for biopolymer films by polyelectrolyte multilayer and atomic layer deposited Al2O3 double-coating. / Hirvikorpi, Terhi; Vähä-Nissi, Mika; Harlin, Ali; Salomäki, Mikko; Areva, Sami; Korhonen, Juuso T.; Karppinen, Maarit.

In: Applied Surface Science, Vol. 257, No. 22, 2011, p. 9451-9454.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

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

VL - 257

SP - 9451

EP - 9454

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

IS - 22

ER -