Adsorption of Charge Carriers on Radial Zinc Oxide and the Study of Their Stability and Dielectric Behavior in Poly(vinylidene fluoride)

2014 ◽  
Vol 118 (33) ◽  
pp. 18868-18877 ◽  
Author(s):  
Radhamanohar Aepuru ◽  
H. S. Panda
Keyword(s):  
Zinc Oxide ◽  
Vinylidene Fluoride ◽  
Dielectric Behavior ◽  
Charge Carriers ◽  
Poly Vinylidene Fluoride

Structural and dielectric properties of hot-pressed poly(vinylidene fluoride)-based composites

2017 ◽  
Vol 52 (10) ◽  
pp. 1399-1412 ◽  
Author(s):  
E Ruggiero ◽  
MM Reboredo ◽  
MS Castro
Keyword(s):  
Zinc Oxide ◽  
Barium Titanate ◽  
Vinylidene Fluoride ◽  
Dielectric Behavior ◽  
The Other ◽  
Filler Concentration ◽  
Zno Particles ◽  
Poly Vinylidene Fluoride ◽  
Pure Poly

The characterization of ceramic/polymer composites was performed on zinc oxide/poly(vinylidene fluoride) – ZnO/PVDF and barium titanate/poly(vinylidene fluoride) composites with varying filler concentration in order to evaluate the main interactions responsible for the composite dielectric behavior. The materials, poly(vinylidene fluoride) and its composites, were melt-blended using a two-roller mixer and then hot-pressed. The permittivity of composites was enhanced compared with that of the pure poly(vinylidene fluoride) with the addition of 20 w/w% of ZnO particles. However, samples with 40 or 60 w/w% of ZnO registered a diminution in the real permittivity values which was connected to particle-matrix adhesion problems. On the other hand, barium titanate composites presented a more homogeneous morphology with less presence of voids and a better adhesion between the filler and the polymer, where real permittivity increased with the addition of barium titanate particles.

Dielectric Behavior of Lithium Tantalate (LiTaO3)/Poly(vinylidene fluoride) (PVDF) Nanocomposites Doped with MWCNTs

2017 ◽  
Vol 9 (3) ◽  
pp. 204-208
Author(s):  
Padmaja Guggilla ◽  
Courtney Walker ◽  
Matthew Edwards ◽  
Ashwith Chilvery ◽  
Brian Thomas
Keyword(s):  
Vinylidene Fluoride ◽  
Lithium Tantalate ◽  
Dielectric Behavior ◽  
Poly Vinylidene Fluoride

Enhancement of β phase crystallization and dielectric behavior of kaolinite/halloysite modified poly(vinylidene fluoride) thin films

2014 ◽  
Vol 99 ◽  
pp. 149-159 ◽  
Author(s):  
Pradip Thakur ◽  
Arpan Kool ◽  
Biswajoy Bagchi ◽  
Sukhen Das ◽  
Papiya Nandy
Keyword(s):  
Thin Films ◽  
Vinylidene Fluoride ◽  
Dielectric Behavior ◽  
Β Phase ◽  
Poly Vinylidene Fluoride

Zinc oxide nanorod as effective reinforcing material for enhancing β phase crystal in poly(vinylidene fluoride) filaments

2020 ◽  
Vol 54 (25) ◽  
pp. 3833-3839
Author(s):  
Prasanta K Panda ◽  
Sachin R Tambe ◽  
Amol G Thite
Keyword(s):  
Zinc Oxide ◽  
Draw Ratio ◽  
Vinylidene Fluoride ◽  
Zinc Oxide Nanorods ◽  
Melt Compounding ◽  
Β Phase ◽  
Oxide Nanorods ◽  
Phase Crystal ◽  
Poly Vinylidene Fluoride ◽  
Crystal Content

The present work is an attempt to demonstrate that incorporation of small amount of zinc oxide nanorods enhances the β crystal percentage, which is essential for improvement in piezo-electric performance of the poly(vinylidene fluoride) (PVDF) fiber. The zinc oxide nanorods were synthesized with aspect ratio of 26 and uniformly dispersed in PVDF by melt compounding process. Those compounded polymers were melt spun and subsequently cold drawn to obtain composite filaments. The effect of nanostructure, loading amount, melt draw ratio, cold draw ratio, and drawing temperature was investigated. The incorporation of nanorods resulted in 14% increase in β phase crystal content compared to control PVDF filaments. The β phase crystal content has been analyzed using the wide-angle X ray diffraction and FTIR spectroscopy. This increase in β phase crystal content was 10% more compared to circular zinc oxide nanoparticle reinforced PVDF composite filament. There was no significant change in mechanical properties of the composite filaments compared to the control PVDF filament.

Fabrication of poly (vinylidene fluoride-trifluoroethylene) – Zinc oxide based piezoelectric pressure sensor

2020 ◽  
Vol 303 ◽  
pp. 111677 ◽  
Author(s):  
Subash Cherumannil Karumuthil ◽  
Kulwant Singh ◽  
Uvais Valiyaneerilakkal ◽  
Jamil Akhtar ◽  
Soney Varghese
Keyword(s):  
Zinc Oxide ◽  
Pressure Sensor ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride ◽  
Piezoelectric Pressure Sensor
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