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Tailoring Dielectric Properties and Energy Density of Ferroelectric Polymer Nanocomposites by High- k Nanowires by Guanyao Wang; Xingyi Huang; Pingkai Jiang is a Engineering article available to read on EtoBox.

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High dielectric constant (k) polymer nanocomposites show great potential in dielectric and energy storage applications in the past few decades. The introduction of high-k nanomaterials into ferroelectric polymers has proven to be a promising strategy for the fabrication of high-k nanocomposites. One dimensional large-aspect-ratio nanowires exhibit superiority in enhancing k and energy density of polymer nanocomposites in comparison to their spherical counterparts. However, the impact of their intrinsic properties on the dielectric properties polymer nanocomposites has been seldom investigated. Herein, four kinds of nanowires (Na 2 Ti 3 O 7 , TiO 2 , BaTiO 3 and SrTiO 3 ) with different inherent characteristics are elaborately selected to fabricate high-k ferroelectric polymer nanocomposites. Dopamine functionalization facilitates the excellent dispersion of these nanowires in the ferroelectric polymer matrix because of the strong polymer/nanowire interfacial adhesion. A thorough comparative study on the dielectric properties and energy storage capability of the nanowires based nanocomposites has been presented. The results reveal that, among the four types of nanowires, BaTiO 3 NWs

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Author

Guanyao Wang; Xingyi Huang; Pingkai Jiang

Publisher

American Chemical Society (ACS)

Published

2015

Language

EN

Field

Engineering (Physical Sciences)