3D-printed barium titanate/poly-(vinylidene fluoride) nano-hybrids with anisotropic dielectric properties

被引：30

作者：

Phatharapeetranun, N. ^{[1
,2
]}

Ksapabutr, B. ^{[2
]}

Marani, D. ^{[3
]}

Bowen, J. R. ^{[1
]}

Esposito, V. ^{[1
]}

机构：

[1] Tech Univ Denmark, DTU Energy, Riso Campus,Frederiksborgvej 399, DK-4000 Roskilde, Denmark

[2] Silpakorn Univ, Fac Engn & Ind Technol, Dept Mat Sci & Engn, Nakhon Pathom, Thailand

[3] Univ Fed ABC, Ctr Engn Modelagem & Ciencias Sociais Aplicadas, Av Estados 5001, BR-09210580 Santo Andre, SP, Brazil

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2017年 / 5卷 / 47期

关键词：

TITANATE NANOWIRES; BATIO3; NANOFIBERS; ENERGY DENSITY; COMPOSITES; POLYMER; NANOCOMPOSITE; NANOGENERATOR; FILMS; CONSTANT; PHASE;

D O I：

10.1039/c7tc03697c

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrospun BaTiO3 nanofibers (BTNFs) are synthesized and blended in a poly(vinylidene fluoride) (PVDF) matrix to obtain a flexible nano-hybrid composite with high dielectric constant (flexible high-k). The blending is performed with different BTNF contents (0.6, 4.5, 20 vol%). The rheological properties of the starting materials are optimized to shape the hybrid by the precision-extrusion-based fuse deposition modeling technique. The 3D-printed BTNFs allow complex shapes with different degrees of fiber alignment as the result of printing shear stress and the chemical composition of the starting material. The dielectric properties of the nano-hybrid are controlled by anisotropy with an enhancement in the nanofiber cross direction (perpendicular to), where the dielectric constant k(perpendicular to) at 1 kHz is increased to ca. 200 from 13 of the PVDF matrix.

引用

页码：12430 / 12440

页数：11

共 56 条

[1] Flexible, Hybrid Piezoelectric Film (BaTi(1-x)ZrxO3)/PVDF Nanogenerator as a Self-Powered Fluid Velocity Sensor [J].