Electroactive poly(vinylidene fluoride) electrospun fiber mats coated with polyaniline and polypyrrole for tissue regeneration applications

2021 ◽  
pp. 105118
Author(s):  
B. Hermenegildo ◽  
C. Ribeiro ◽  
N. Peřinka ◽  
P. Martins ◽  
M. Trchová ◽  
...  
Keyword(s):  
Tissue Regeneration ◽  
Vinylidene Fluoride ◽  
Electrospun Fiber ◽  
Fiber Mats ◽  
Poly Vinylidene Fluoride

scholarly journals Influence of oxygen plasma treatment parameters on poly(vinylidene fluoride) electrospun fiber mats wettability

2015 ◽  
Vol 85 ◽  
pp. 151-158 ◽  
Author(s):  
D.M. Correia ◽  
C. Ribeiro ◽  
V. Sencadas ◽  
G. Botelho ◽  
S.A.C. Carabineiro ◽  
...  
Keyword(s):  
Plasma Treatment ◽  
Oxygen Plasma ◽  
Vinylidene Fluoride ◽  
Electrospun Fiber ◽  
Oxygen Plasma Treatment ◽  
Fiber Mats ◽  
Poly Vinylidene Fluoride

NOVEL POLYMER ELECTROLYTE BASED ON POLY(VINYLIDENE FLUORIDE) AND POLY(4-VINYL PYRIDINE) HAVING A NANO-CHANNEL FOR ION TRANSPORTATION

2009 ◽  
Vol 23 (06n07) ◽  
pp. 1313-1318
Author(s):  
SEUNG HYUN OH ◽  
SEONG LAK KANG ◽  
KWANG-UN JEONG ◽  
CHANGWOON NAH ◽  
BAIK-HWAN CHO
Keyword(s):  
Ionic Conductivity ◽  
Vinylidene Fluoride ◽  
Porous Polymer ◽  
Fiber Mats ◽  
Vinyl Pyridine ◽  
Poly Vinylidene Fluoride ◽  
Nano Channel ◽  
Wet Condition ◽  
Ion Transportation ◽  
Fast Ion

The micro-porous polymer electrolytes membranes(PEMs), notably electro-spun fiber mats, have been suggested to give an improved ionic conductivity. However, the mat-type PEMs have a poor mechanical and dimensional stability because of their inevitable porous nature. In this study, we suggest a new PEM system based on poly(vinylidene fluoride)(PVdF) mats, which can overwhelm such shortcomings of the porous mats by introducing another component, poly(4-vinyl pyridine)(P4VP), into the mats. The tensile strength of PVdF / P 4 VP membrane was considerably improved compared with that of pristine PVdF membrane under dry and wet conditions. The ionic conductivity was also improved by about 10 times than that of PVdF mat. A micro- to nano-size gap was formed at the interfaces between PVdF nanofiber and P 4 VP , and this may act as a channel for fast ion transportation under wet condition.

scholarly journals Electrospun fiber membranes from blends of poly(vinylidene fluoride) with fouling-resistant zwitterionic copolymers

2018 ◽  
Vol 68 (2) ◽  
pp. 231-239 ◽  
Author(s):  
Nelaka Govinna ◽  
Papatya Kaner ◽  
Davette Ceasar ◽  
Anita Dhungana ◽  
Cody Moers ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Electrospun Fiber ◽  
Fiber Membranes ◽  
Poly Vinylidene Fluoride

scholarly journals Innovative Poly (Vinylidene Fluoride) (PVDF) Electrospun Nanofiber Membrane Preparation Using DMSO as a Low Toxicity Solvent

Membranes ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 36 ◽  
Author(s):  
Francesca Russo ◽  
Claudia Ursino ◽  
Elisa Avruscio ◽  
Giovanni Desiderio ◽  
Andrea Perrone ◽  
...  
Keyword(s):  
Pore Size ◽  
Vinylidene Fluoride ◽  
Electrospun Fiber ◽  
Water Flux ◽  
Operating Conditions ◽  
High Yield ◽  
High Porosity ◽  
Collector Plate ◽  
Poly Vinylidene Fluoride ◽  
Low Toxicity

Electrospinning is an emerging technique for the preparation of electrospun fiber membranes (ENMs), and a very promising one on the basis of the high-yield and the scalability of the process according to a process intensification strategy. Most of the research reported in the literature has been focused on the preparation of poly (vinylidene fluoride) (PVDF) ENMs by using N,N- dimethylformamide (DMF) as a solvent, which is considered a mutagenic and cancerogenic substance. Hence, the possibility of using alternative solvents represents an interesting approach to investigate. In this work, we explored the use of dimethyl sulfoxide (DMSO) as a low toxicity solvent in a mixture with acetone for the preparation of PVDF-ENMs. As a first step, a solubility study of the polymer, PVDF 6012 Solef®, in several DMSO/acetone mixtures was carried out, and then, different operating conditions (e.g., applied voltage and needle to collector plate distance) for the successful electrospinning of the ENMs were evaluated. The study provided evidence of the crucial role of solution conductivity in the electrospinning phase and the thermal post-treatment. The prepared ENMs were characterized by evaluating the morphology (by SEM), pore-size, porosity, surface properties, and performance in terms of water permeability. The obtained results showed the possibility of producing ENMs in a more sustainable way, with a pore size in the range of 0.2–0.8 µm, high porosity (above 80%), and water flux in the range of 11.000–38.000 L/m2·h·bar.

Piezoelectric β-polymorph formation of new textiles by surface modification with coating process based on interfacial interaction on the conformational variation of poly (vinylidene fluoride) (PVDF) chains

2020 ◽  
Vol 91 (3) ◽  
pp. 31301
Author(s):  
Nabil Chakhchaoui ◽  
Rida Farhan ◽  
Meriem Boutaldat ◽  
Marwane Rouway ◽  
Adil Eddiai ◽  
...  
Keyword(s):  
High Efficiency ◽  
Vinylidene Fluoride ◽  
Research Work ◽  
Research Area ◽  
Interfacial Interaction ◽  
Tetraethyl Orthosilicate ◽  
Poly Vinylidene Fluoride ◽  
Carbon Nanofillers ◽  
The Impact ◽  
Advanced Applications

Novel textiles have received a lot of attention from researchers in the last decade due to some of their unique features. The introduction of intelligent materials into textile structures offers an opportunity to develop multifunctional textiles, such as sensing, reacting, conducting electricity and performing energy conversion operations. In this research work nanocomposite-based highly piezoelectric and electroactive β-phase new textile has been developed using the pad-dry-cure method. The deposition of poly (vinylidene fluoride) (PVDF) − carbon nanofillers (CNF) − tetraethyl orthosilicate (TEOS), Si(OCH2CH3)4 was acquired on a treated textile substrate using coating technique followed by evaporation to transform the passive (non-functional) textile into a dynamic textile with an enhanced piezoelectric β-phase. The aim of the study is the investigation of the impact the coating of textile via piezoelectric nanocomposites based PVDF-CNF (by optimizing piezoelectric crystalline phase). The chemical composition of CT/PVDF-CNC-TEOS textile was detected by qualitative elemental analysis (SEM/EDX). The added of 0.5% of CNF during the process provides material textiles with a piezoelectric β-phase of up to 50% has been measured by FTIR experiments. These results indicated that CNF has high efficiency in transforming the phase α introduced in the unloaded PVDF, to the β-phase in the case of nanocomposites. Consequently, this fabricated new textile exhibits glorious piezoelectric β-phase even with relatively low coating content of PVDF-CNF-TEOS. The study demonstrates that the pad-dry-cure method can potentially be used for the development of piezoelectric nanocomposite-coated wearable new textiles for sensors and energy harvesting applications. We believe that our study may inspire the research area for future advanced applications.

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