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Effect of nanoclay orientation on oxygen barrier properties of LbL nanocomposite coated films

Fatma Ben Dhieb, Ebrahim Jalali Dil, Seyyed H. Tabatabaei, Frej Mighri, Abdellah Ajji

Article (2019)

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Abstract

Layer by layer (LbL) film deposition is an efficient technique used to produce thin coatings with high gasbarrier properties. In this study, multilayer composite coatings with hydrogen bonding inter-layer interactions were deposited by LbL on a PET substrate, with an alternate deposition of a nanoclay layer and different intercalating polymers layers, namely chitosan (CS), polyethylene oxide (PEO), polyvinylpyrrolidone (PVP) and polyvinyl alcohol (PVA). The investigated coatings had two different structures, quadlayers and bilayers which are different in the number of layers in the repetitive unit (four and two respectively). The alignment of nanoclay platelets and the extent of their intercalation werestudied using Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). The resultsshowed that the dispersion level and the orientation of nanoclay particles depend considerably on the molecular structure of intercalating polymers and their interactions with nanoclay. An oxygen permeability model, specific to high filler loading composites, was then developed by considering only the aspect ratio and the volume fraction of the nanoparticles.
Subjects: 1800 Chemical engineering > 1800 Chemical engineering
1800 Chemical engineering > 1802 Biochemical engineering
Department: Department of Chemical Engineering
Research Center: CREPEC - Center for Applied Research on Polymers and Composites
Funders: 3SPack NSERC Industrial Research Chair, ProAmpac Inc. Company
PolyPublie URL: https://publications.polymtl.ca/4780/
Journal Title: RSC Advances (vol. 9, no. 3)
Publisher: The Royal Society of Chemistry
DOI: 10.1039/c8ra09522a
Official URL: https://doi.org/10.1039/c8ra09522a
Date Deposited: 08 Sep 2021 14:23
Last Modified: 18 Nov 2022 18:57
Cite in APA 7: Ben Dhieb, F., Jalali Dil, E., Tabatabaei, S. H., Mighri, F., & Ajji, A. (2019). Effect of nanoclay orientation on oxygen barrier properties of LbL nanocomposite coated films. RSC Advances, 9(3), 1632-1641. https://doi.org/10.1039/c8ra09522a

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