Oxygen permeability through poly(ethylene- co-vinyl acetate)/clay nanocomposites prepared by microwave irradiation

► Poly(ethylene- co-vinyl acetate)/clay nanocomposites by solution microwave heating.► The microwave heating does not improve the clay dispersion.► The addition of 10 wt.% of clay reduces the oxygen permeability of EVA about 55%. Microwave heating was used to prepare poly(ethylene- co-vinyl acetate)...

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Bibliographic Details
Published in:Journal of membrane science 2011-05, Vol.373 (1), p.173-177
Main Authors: Urresti, O., González, A., Fernández-Berridi, M.J., Iruin, J.J., Irusta, L.
Format: Article
Language:English
Subjects:
acetates
artificial membranes
Chemistry
Clay
clay fraction
Colloidal state and disperse state
EVA
Exact sciences and technology
General and physical chemistry
irradiation
Membranes
microwave radiation
microwave treatment
Microwaves
Nanocomposites
oxygen
Oxygen permeability
permeability
temperature
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Summary:► Poly(ethylene- co-vinyl acetate)/clay nanocomposites by solution microwave heating.► The microwave heating does not improve the clay dispersion.► The addition of 10 wt.% of clay reduces the oxygen permeability of EVA about 55%. Microwave heating was used to prepare poly(ethylene- co-vinyl acetate) (EVA)/clay nanocomposites by solution intercalation. The effects of nanocomposite preparation conditions, such as temperature, irradiation time and clay concentration on the morphology and gas transport properties of EVA membranes were investigated. The microwave irradiation temperature and time did not have any effect on the filler distribution and consequently the oxygen permeability of nanocomposites was mainly dependent on the clay content. The oxygen permeability of EVA was reduced by 55% using microwave intercalation of 10 wt.% of clay. Similar reductions were obtained using traditional heating, suggesting that, at least in this work, microwave heating does not improve clay dispersion.
ISSN:0376-7388
1873-3123
DOI:10.1016/j.memsci.2011.03.003