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The impact of interfaces in laminated packaging on transport of carboxylic acids
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2016 (English)In: Journal of Membrane Science, ISSN 0376-7388, E-ISSN 1873-3123, Vol. 518, 305-312 p.Article in journal (Refereed) Published
Abstract [en]

The permeability of oleic and acetic acid through low density polyethylene (LDPE) and ethylene acrylic acid (EAA) have been measured using diffusion cells. In addition, the permeability through combinations of LDPE and EAA in the form of laminates with different numbers of layers has been determined. Oleic acid shows an almost 30 times higher permeability compared to acetic acid, which was partly explained by the adsorption of oleic acid to the film surface during the permeability experiment. In addition, the permeability is lower for both oleic and acetic acid in the laminates compared to the pure films. The decreased permeability can be explained by the presence of crystalline domains close to the interface. This is supported by SAXS data which suggests an ordering of polymer chains in the EAA film close to the interface. In summary, the results show that it is possible to create barrier materials with decreased permeability, which is interesting for example in the packaging industry. © 2016 Elsevier B.V.

Place, publisher, year, edition, pages
2016. Vol. 518, 305-312 p.
Keyword [en]
Interfaces, Laminates, Packaging, Permeability, Polymers, Acetic acid, Carboxylic acids, Ethylene, Mechanical permeability, Oleic acid, Organic acids, Packaging materials, pH, Polyethylenes, Acrylic acids, Barrier material, Crystalline domains, Diffusion cells, Laminated packaging, Low density polyethylene(LDPE), Packaging industry, Polymer chains, Interfaces (materials), acrylic acid derivative, carboxylic acid, ethylene acrylic acid, polyethylene, unclassified drug, adsorption, Article, diffusion, membrane permeability, membrane transport, packaging material, priority journal, surface property
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Chemical Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27588DOI: 10.1016/j.memsci.2016.06.045Scopus ID: 2-s2.0-84979578710OAI: oai:DiVA.org:ri-27588DiVA: diva2:1057881
Available from: 2016-12-19 Created: 2016-12-19 Last updated: 2017-02-06Bibliographically approved

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CiteExportLink to record
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