MICROCRYSTALLINE CELLULOSE AS A GREEN WAY FOR SUBSTITUTING BaTiO 3 IN DIELECTRIC COMPOSITES AND IMPROVING THEIR DIELECTRIC PROPERTIES

Adel Zyane (1) , Ahmed Belfkira (1) , François Brouillette (2) , Romain Lucas (3) , Pascal Marchet (4)

1 LCBM - Laboratoire de Chimie Bioorganique et Macromoléculaire - Faculté des Sciences et Techniques
2 Centre de Recherche sur les Matériaux Lignocellulosiques
3 SPCTS-AXE4 - Axe 4 : céramiques sous contraintes environnementales
4 SPCTS-AXE3 - Axe 3 : organisation structurale multiéchelle des matériaux

Barium titanate (BT) and microcrystalline cellulose (MCC) were used to improve the dielectric properties of a commercial vinylic resin. Using a green method, two binary composites (vinylic resin/BaTiO 3 , vinylic resin/MCC) and one ternary composite (vinylic resin/BaTiO 3 /MCC) were prepared. The results obtained for the MCC containing composite show an identical evolution of the relative permittivity compared to BaTiO 3 composites with weak dielectric losses. In consequence, the feasibility of the substitution of BaTiO 3 with MCC, an economical and biosourced material is demonstrated.

Mots clés: polymer composites; biocomposites; dielectrics; barium titanate; microcrystalline cellulose

Domaines: Matériaux

Adel Zyane, Ahmed Belfkira, François Brouillette, Romain Lucas, Pascal Marchet. MICROCRYSTALLINE CELLULOSE AS A GREEN WAY FOR SUBSTITUTING BaTiO 3 IN DIELECTRIC COMPOSITES AND IMPROVING THEIR DIELECTRIC PROPERTIES. Cellulose Chemistry and Technology, 2015. ⟨hal-01239614⟩