scholarly journals Dielectric and Structural Properties of Poly(vinylidene fluoride) (PVDF) and Poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) Filled with Magnesium Oxide Nanofillers

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
A. N. Arshad ◽  
M. H. M. Wahid ◽  
M. Rusop ◽  
W. H. A. Majid ◽  
R. H. Y. Subban ◽  
...  
Keyword(s):  
Magnesium Oxide ◽  
Vinylidene Fluoride ◽  
Low Frequency ◽  
Film Surface ◽  
Weight Percent ◽  
Pvdf Film ◽  
Low Dielectric ◽  
Metal Insulator Metal ◽  
Poly Vinylidene Fluoride ◽  
High Dielectric

This study examines the dielectric properties of filled PVDF film and filled PVDF-TrFE film incorporated with 1, 3, 5, and 7 weight percentages of magnesium oxide (MgO) nanofillers. The metal-insulator-metal (MIM) configuration demonstrates PVDF/MgO with 7 weight percent of MgO which produced high dielectric constant (1 kHz) with low dielectric loss. The ATR-FTIR spectra of PVDF/MgO (7%) indicate wide bonding peaks at 840 cm-1 and 880 cm-1, assigned to -CH2 and -CF2 groups, respectively. This implies the presence of high content of β-crystals in the PVDF/MgO (7%) film. A shift in the peak was observed in the same film, from 1170 cm-1 to 1180 cm-1 suggesting possible transformation from γ-crystals to β-crystals. This film showed no apparent defect on its film surface. Thus, it established that PVDF incorporated with 7% MgO can be used to produce nanocomposite thin film for low-frequency electronic devices.

Improving the dielectric properties of poly(vinylidene fluoride) composites by using poly(vinyl pyrrolidone)-encapsulated polyaniline nanorods

2016 ◽  
Vol 4 (7) ◽  
pp. 1504-1510 ◽  
Author(s):  
Shuangmin Yu ◽  
Fan Qin ◽  
Gengchao Wang
Keyword(s):  
High Dielectric Constant ◽  
Vinylidene Fluoride ◽  
Polymer Nanocomposite ◽  
Vinyl Pyrrolidone ◽  
Low Dielectric ◽  
Poly Vinylidene Fluoride ◽  
Poly Vinyl Pyrrolidone ◽  
High Dielectric ◽  
Polyaniline Nanorods ◽  
Dielectric Polymer

A promising PVDF-based dielectric polymer nanocomposite based on easily dispersed and poly(vinyl pyrrolidone)-encapsulated polyaniline nanorods (dPANI@PVP) was fabricated and displayed a high dielectric constant and low dielectric loss.

Bi2S3/poly(vinylidene fluoride) composite with high dielectric constant and unusual low dielectric loss based on preferentially oriented fillers

RSC Advances ◽  
2015 ◽  
Vol 5 (117) ◽  
pp. 96258-96264 ◽  
Author(s):  
Jie Liu ◽  
Yu Luo ◽  
Yao Wang ◽  
Yuan Deng ◽  
Xitong Xie
Keyword(s):  
Dielectric Constant ◽  
Dielectric Loss ◽  
Hot Pressing ◽  
High Dielectric Constant ◽  
Vinylidene Fluoride ◽  
Bismuth Sulfide ◽  
Two Phase ◽  
Low Dielectric ◽  
Poly Vinylidene Fluoride ◽  
High Dielectric

In this work, a novel two-phase ferroelectric polymer composite, consisting of semiconducting bismuth sulfide nanorods and a poly(vinylidene fluoride) matrix, was fabricated by a sequence of casting, hot-stretching and hot-pressing techniques.

High dielectric constant and low dielectric loss poly(vinylidene fluoride) nanocomposites via a small loading of two-dimensional Bi2Te3@Al2O3 hexagonal nanoplates

2018 ◽  
Vol 6 (2) ◽  
pp. 271-279 ◽  
Author(s):  
Jianwen Chen ◽  
Xiucai Wang ◽  
Xinmei Yu ◽  
Lingmin Yao ◽  
Zhikui Duan ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Dielectric Loss ◽  
High Dielectric Constant ◽  
Vinylidene Fluoride ◽  
Nanocomposite Films ◽  
Two Dimensional ◽  
Low Dielectric ◽  
Poly Vinylidene Fluoride ◽  
High Dielectric ◽  
Hexagonal Nanoplates

Nanocomposite films with a small loading of two-dimensional Bi2Te3@Al2O3 hexagonal nanoplates exhibit a high dielectric constant of 140 and relatively low dielectric loss of 0.05 at 1 kHz.

Multilayer-structured transparent MXene/PVDF film with excellent dielectric and energy storage performance

2019 ◽  
Vol 7 (33) ◽  
pp. 10371-10378 ◽  
Author(s):  
Weiyan Li ◽  
Zhongqian Song ◽  
Jiaming Zhong ◽  
Jing Qian ◽  
Zhongyang Tan ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Energy Storage ◽  
Dielectric Loss ◽  
High Dielectric Constant ◽  
Vinylidene Fluoride ◽  
Pvdf Film ◽  
Storage Performance ◽  
Poly Vinylidene Fluoride ◽  
High Dielectric

A novel multilayer-structured Ti3C2Tx MXene/poly(vinylidene fluoride) film with a high dielectric constant and ultralow dielectric loss is presented.

Study of dielectric behavior in PVDF/clay nanocomposites

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
C.V. Chanmal ◽  
J.P. Jog
Keyword(s):  
Dielectric Permittivity ◽  
Vinylidene Fluoride ◽  
Low Frequency ◽  
Interfacial Polarization ◽  
Dielectric Behavior ◽  
Clay Nanocomposites ◽  
Cole Plot ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
High Dielectric

AbstractA high dielectric permittivity nanocomposite based on poly(vinylidene fluoride) (PVDF) and organically modified clay is reported. The present work aims to study the effect of clay on dielectric behavior of PVDF. The dielectric permittivity study shows a remarkable enhancement in the permittivity of nanocomposites in the low frequency region. The obtained permittivity values fits quite well to the prediction of dielectric permittivity from Vo-Shi model, which takes contribution of interface to permittivity into account. This enhanced permittivity in nanocomposites is attributed to the presence of interfacial polarization. The interface effect is further studied with cole-cole plot analysis. The dielectric loss study of pristine PVDF shows two relaxations associated with segmental (glass transition relaxation) and crystalline chain relaxation. However in the PVDF/Clay nanocomposites crystalline relaxation peak disappears which is attributed to the formation of the β phase in PVDF/clay nanocomposites.

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