The impact of interfaces in laminated packaging on transport of carboxylic acids
Artikel i vetenskaplig tidskrift, 2016

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. (C) 2016 Elsevier B.V. All rights reserved.

gases

copolymers

Interfaces

Engineering

Laminates

polyethylene

molecular-weight

polypropylene

barrier properties

permeability

issues

vapors

Polymer Science

films

Polymers

Permeability

Packaging

Författare

Sofie Gårdebjer

SuMo Biomaterials

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Tobias Gebäck

Chalmers, Matematiska vetenskaper, Matematik

SuMo Biomaterials

Thorbjörn Andersson

SuMo Biomaterials

Tetra Pak

E. Fratini

Universita degli Studi di Firenze

P. Baglioni

Universita degli Studi di Firenze

Romain Bordes

SuMo Biomaterials

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Anna Viridén

AstraZeneca AB

SuMo Biomaterials

Mark Nicholas

SuMo Biomaterials

AstraZeneca AB

Niklas Lorén

SuMo Biomaterials

SIK – Institutet för Livsmedel och Bioteknik AB

Anette Larsson

Chalmers, Kemi och kemiteknik, Tillämpad kemi

SuMo Biomaterials

Journal of Membrane Science

0376-7388 (ISSN)

Vol. 518 305-312

Ämneskategorier

Polymerkemi

Annan fysik

Kemi

Styrkeområden

Materialvetenskap

DOI

10.1016/j.memsci.2016.06.045

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Senast uppdaterat

2022-04-05