SiOx Gas Barrier Coatings on Polymer Substrates

Morphology and Gas Transport Considerations

A. G. Erlat, R. J. Spontak, R. P. Clarke, T. C. Robinson, P. D. Haaland, Y. Tropsha, N. G. Harvey, Erwin A. Vogler

Research output: Contribution to journalArticle

204 Citations (Scopus)

Abstract

Plasma-enhanced chemical vapor deposition (PECVD) of SiOx thin coatings on polymer surfaces yields tough hybrid materials with the gas barrier properties and transparency of glass. Combination of these properties makes these materials ideally suited for food packaging and biomedical device applications. In this study, we employ a Non-Parametric Response Surface Methods optimization to identify the Magnetron-PECVD conditions responsible for superlative SiOx barrier coatings on poly(ethylene terephthalate) (PET). Oxygen and water vapor permeances of optimized PET/SiOx composites produced by hexamethyldisiloxane and trimethylsilane have been measured as functions of temperature and are found to exhibit Arrhenius behavior. The thermal activation energy for water vapor permeation, unlike that for oxygen permeation, depends on barrier performance and increases by as much as 20 kJ/mol with an increase in barrier efficacy. Examination of these materials by phase-imaging atomic force microscopy and energy-filtered transmission electron microscopy reveals a correlation between SiOx morphology (including defects) and barrier performance. Morphological and permeation results are compared to identify some of the physical factors governing water vapor permeation through SiOx-modified polymers.

Original languageEnglish (US)
Pages (from-to)6047-6055
Number of pages9
JournalJournal of Physical Chemistry B
Volume103
Issue number29
StatePublished - Jul 22 1999

Fingerprint

gas transport
Permeation
Steam
Polymers
Gases
Water vapor
coatings
Coatings
polymers
Substrates
water vapor
Plasma enhanced chemical vapor deposition
gases
Oxygen
Polyethylene Terephthalates
vapor deposition
Hybrid materials
physical factors
Polyethylene terephthalates
Transparency

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Erlat, A. G., Spontak, R. J., Clarke, R. P., Robinson, T. C., Haaland, P. D., Tropsha, Y., ... Vogler, E. A. (1999). SiOx Gas Barrier Coatings on Polymer Substrates: Morphology and Gas Transport Considerations. Journal of Physical Chemistry B, 103(29), 6047-6055.
Erlat, A. G. ; Spontak, R. J. ; Clarke, R. P. ; Robinson, T. C. ; Haaland, P. D. ; Tropsha, Y. ; Harvey, N. G. ; Vogler, Erwin A. / SiOx Gas Barrier Coatings on Polymer Substrates : Morphology and Gas Transport Considerations. In: Journal of Physical Chemistry B. 1999 ; Vol. 103, No. 29. pp. 6047-6055.
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Erlat, AG, Spontak, RJ, Clarke, RP, Robinson, TC, Haaland, PD, Tropsha, Y, Harvey, NG & Vogler, EA 1999, 'SiOx Gas Barrier Coatings on Polymer Substrates: Morphology and Gas Transport Considerations', Journal of Physical Chemistry B, vol. 103, no. 29, pp. 6047-6055.

SiOx Gas Barrier Coatings on Polymer Substrates : Morphology and Gas Transport Considerations. / Erlat, A. G.; Spontak, R. J.; Clarke, R. P.; Robinson, T. C.; Haaland, P. D.; Tropsha, Y.; Harvey, N. G.; Vogler, Erwin A.

In: Journal of Physical Chemistry B, Vol. 103, No. 29, 22.07.1999, p. 6047-6055.

Research output: Contribution to journalArticle

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AU - Erlat, A. G.

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AU - Clarke, R. P.

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AU - Harvey, N. G.

AU - Vogler, Erwin A.

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Erlat AG, Spontak RJ, Clarke RP, Robinson TC, Haaland PD, Tropsha Y et al. SiOx Gas Barrier Coatings on Polymer Substrates: Morphology and Gas Transport Considerations. Journal of Physical Chemistry B. 1999 Jul 22;103(29):6047-6055.