In-situ synchrotron SAXS and WAXS investigations on deformation and α–β transformation of uniaxial stretched poly(vinylidene fluoride)

CrystEngComm ◽  
2013 ◽  
Vol 15 (8) ◽  
pp. 1597 ◽  
Author(s):  
Huilong Guo ◽  
Yao Zhang ◽  
Feifei Xue ◽  
Ziwei Cai ◽  
Yingrui Shang ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride ◽  
Synchrotron Saxs

Physico‐Chemical Characterizations of Poly(vinylidene fluoride)/Cu 3 (BTC) 2 Composite Membranes Prepared by In Situ Crystal Growth

2019 ◽  
Vol 60 (3) ◽  
pp. 464-473 ◽  
Author(s):  
Nadhem Missaoui ◽  
Gérald Chaplais ◽  
Ludovic Josien ◽  
Laure Michelin ◽  
Gautier Schrodj ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Vinylidene Fluoride ◽  
Composite Membranes ◽  
Physico Chemical ◽  
Poly Vinylidene Fluoride

scholarly journals Development of In-Situ Poled Nanofiber Based Flexible Piezoelectric Nanogenerators for Self-Powered Motion Monitoring

2020 ◽  
Vol 10 (10) ◽  
pp. 3493
Author(s):  
Minjung Kim ◽  
Vignesh Krishnamoorthi Kaliannagounder ◽  
Afeesh Rajan Unnithan ◽  
Chan Hee Park ◽  
Cheol Sang Kim ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Implantable Devices ◽  
The Past ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
High Bias ◽  
Self Powered ◽  
Increasing Demand ◽  
Piezoelectric Nanogenerators

Energy harvesting technologies have found significant importance over the past decades due to the increasing demand of energy and self-powered design of electronic and implantable devices. Herein, we demonstrate the design and application of in situ poled highly flexible piezoelectric poly vinylidene fluoride (PVDF) graphene oxide (GO) hybrid nanofibers in aligned mode for multifaceted applications from locomotion sensors to self-powered motion monitoring. Here we exploited the simplest and most versatile method, called electrospinning, to fabricate the in situ poled nanofibers by transforming non-polar α-phase of PVDF to polar β- phase structures for enhanced piezoelectricity under high bias voltage. The flexible piezoelectric device fabricated using the aligned mode generates an improved output voltage of 2.1 V at a uniform force of 12 N. The effective piezoelectric transduction exhibited by the proposed system was tested for its multiple efficacies as a locomotion detector, bio-e-skin, smart chairs and so on.

In situ synthesis of Ni(OH)2nanobelt modified electroactive poly(vinylidene fluoride) thin films: remarkable improvement in dielectric properties

2015 ◽  
Vol 17 (19) ◽  
pp. 13082-13091 ◽  
Author(s):  
Pradip Thakur ◽  
Arpan Kool ◽  
Biswajoy Bagchi ◽  
Nur Amin Hoque ◽  
Sukhen Das ◽  
...  
Keyword(s):  
Thin Films ◽  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
In Situ Synthesis ◽  
Dielectric Constants ◽  
Remarkable Improvement ◽  
Poly Vinylidene Fluoride

Development of Ni(OH)2nanobelt modified electroactive PVDF thin films with colossal dielectric constantsviaa simplein situprocess.

Preparation of poly(vinylidene fluoride)-silver nanoparticle composite using dimethylformide as both a solvent and a reductant

e-Polymers ◽  
2011 ◽  
Vol 11 (1) ◽  
Author(s):  
Yingbo Chen ◽  
Lina Liu ◽  
Yufeng Zhang
Keyword(s):  
Mechanical Properties ◽  
Silver Nanoparticles ◽  
Silver Nanoparticle ◽  
Vinylidene Fluoride ◽  
Silver Salt ◽  
Α Phase ◽  
Phase Crystal ◽  
Poly Vinylidene Fluoride ◽  
Pure Pvdf

AbstractPoly(vinylidene fluoride)-silver nanoparticle (PVDF-Ag) composites were synthesized by in situ reduction of silver salt using dimethylformide (DMF) as both a solvent and a reductant. The crystalline properties (e.g., crystallinity and the types of crystals) of the composites were characterized. It was shown that PVDF in the composites had a higher melting temperature than pure PVDF, and the α phase crystal in the composites became more stable with an increase in the amount of silver nanoparticles. The mechanical properties and morphologies of the composites were also investigated. It was noted that the PVDF-Ag composites have better mechanical properties when silver nanoparticles were added. The increase in toughness could be attributed to the formation of continuous structure between PVDF and silver particles.

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