The impact of interfaces in laminated packaging on transport of carboxylic acids
Journal article, 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

Author

Sofie Gårdebjer

SuMo Biomaterials

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Tobias Gebäck

Chalmers, Mathematical Sciences, Mathematics

SuMo Biomaterials

Thorbjörn Andersson

SuMo Biomaterials

Tetra Pak

E. Fratini

University of Florence

P. Baglioni

University of Florence

Romain Bordes

SuMo Biomaterials

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Anna Viridén

AstraZeneca AB

SuMo Biomaterials

Mark Nicholas

SuMo Biomaterials

AstraZeneca AB

Niklas Lorén

SuMo Biomaterials

SIK – the Swedish Institute for Food and Biotechnology

Anette Larsson

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

SuMo Biomaterials

Journal of Membrane Science

0376-7388 (ISSN)

Vol. 518 305-312

Subject Categories

Polymer Chemistry

Other Physics Topics

Chemical Sciences

Areas of Advance

Materials Science

DOI

10.1016/j.memsci.2016.06.045

More information

Latest update

4/5/2022 1