Understanding Nonlinear Dielectric Properties in a Biaxially Oriented Poly(vinylidene fluoride) Film at Both Low and High Electric Fields

2016 ◽  
Vol 8 (1) ◽  
pp. 455-465 ◽  
Author(s):  
Yue Li ◽  
Janet Ho ◽  
Jianchuan Wang ◽  
Zhong-Ming Li ◽  
Gan-Ji Zhong ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Electric Fields ◽  
Vinylidene Fluoride ◽  
Nonlinear Dielectric ◽  
Poly Vinylidene Fluoride ◽  
High Electric Fields

Novel Continuous Poly(vinylidene fluoride) Nanofibers

2006 ◽  
Vol 920 ◽  
Author(s):  
Xi Ren ◽  
Yuris Dzenis
Keyword(s):  
Electric Fields ◽  
Vinylidene Fluoride ◽  
Ferroelectric Properties ◽  
Fiber Spinning ◽  
Raw Material ◽  
Synthetic Fiber ◽  
Fiber Properties ◽  
Electrospinning Method ◽  
Poly Vinylidene Fluoride ◽  
High Electric Fields

AbstractPoly(vinylidene fluoride) (PVDF) is well known for its ferroelectric and piezoelectric properties. Currently, this polymer is used in applications in the form of films. PVDF fibers are expected to open up exciting new opportunities such as design and use of active textiles and composites. It is well-known that synthetic fiber properties improve substantially with the decrease of their diameter. However, conventional mechanical fiber spinning processes usually produce fibers with diameters in the range from tens to hundreds of microns. In this work, ultrafine, submicron-diameter continuous PVDF nanofibers were fabricated by electrospinning method. The method consists of spinning polymer solutions in high electric fields. Effects of process parameters on nanofiber diameter and morphology were studied. XRD and FTIR analyses of PVDF nanofibers were performed. The latter indicated that the initial á phase of the raw material was converted to â phase PVDF during electrospinning. As â phase is primarily responsible for the piezo- and ferroelectric properties of PVDF, the latter result is very encouraging. The demonstrated novel continuous PVDF nanofibers can be used in nanostructured active textiles and composites and can lead to unusual new designs for actuators and sensors.

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

2017 ◽  
Vol 5 (47) ◽  
pp. 12430-12440 ◽  
Author(s):  
N. Phatharapeetranun ◽  
B. Ksapabutr ◽  
D. Marani ◽  
J. R. Bowen ◽  
V. Esposito
Keyword(s):  
Dielectric Properties ◽  
Barium Titanate ◽  
Vinylidene Fluoride ◽  
Anisotropic Dielectric ◽  
Poly Vinylidene Fluoride ◽  
3D Printed ◽  
Dielectric Devices

“3D-printed” anisotropy BTNFs/PVDF nanohybrids are successfully fabricated by the FDM technique which is attractive for developing novel functionalities in dielectric devices.

Effects of processing methods on dielectric properties of BaTiO3/poly(vinylidene fluoride) nanocomposites

2015 ◽  
Vol 146 ◽  
pp. 1-5 ◽  
Author(s):  
Kanyapak Silakaew ◽  
Wantana Saijingwong ◽  
Keerati Meeporn ◽  
Santi Maensiri ◽  
Prasit Thongbai
Keyword(s):  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
Processing Methods ◽  
Poly Vinylidene Fluoride
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