Volume 133, Issue 48
Article

BaTiO3 incorporation effect on the dielectric properties of polymer from aqueous emulsion: An enhanced dispersion technique

Adel Zyane

Corresponding Author

Adel Zyane

Centre de recherche sur les matériaux lignocellulosiques (CRML), Université du Québec à Trois-Rivières, 3351 boul. des Forges C.P. 500, Trois-Rivières, Canada

Laboratoire de Chimie Bioorganique et Macromoléculaire (LCBM), Faculté des Sciences et Techniques, Avenue Abdelkrim Khattabi BP 549, Marrakech, Maroc

Correspondence to: A. Zyane (E-mail: [email protected])Search for more papers by this author
Ahmed Belfkira

Ahmed Belfkira

Laboratoire de Chimie Bioorganique et Macromoléculaire (LCBM), Faculté des Sciences et Techniques, Avenue Abdelkrim Khattabi BP 549, Marrakech, Maroc

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François Brouillette

François Brouillette

Centre de recherche sur les matériaux lignocellulosiques (CRML), Université du Québec à Trois-Rivières, 3351 boul. des Forges C.P. 500, Trois-Rivières, Canada

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Pascal Marchet

Pascal Marchet

Université de Limoges, SPCTS, UMR 7315, F-87000 Limoges, France

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Romain Lucas

Romain Lucas

Université de Limoges, SPCTS, UMR 7315, F-87000 Limoges, France

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First published: 24 August 2016
Citations: 10

ABSTRACT

An economic and environment friendly process was adapted to synthesize new dielectric composite materials. Using ethylene vinyl acetate (EVA)/vinyl ester of versatic acid (VeoVa) terpolymer as an aqueous emulsion provides a homogenous dispersion of BaTiO3 (BT) particles, due to the high viscosity and polarity of the vinyl resin (VR). Composites films were obtained from these dispersions by water evaporation. The evolution of the dielectric properties as a function of the BaTiO3 content, was correctly fitted by a Maxwell-Garnett model. This fitting of the experimental curve shows a good dispersion of filler in the vinyl resin and the particles separation by a layer of resin as expected for the preparation method used in this study. The VR/BT composites show good synergy between the dielectric properties of the different phases of the composites due to the formation of macrodipoles and to the strong interactions between polar EVA/VeoVa groups and the BaTiO3 particles surface. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44333.

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