A comparative assessment of poly(vinylidene fluoride)/conducting polymer electrospun nanofiber membranes for biomedical applications

2020 ◽  
Vol 137 (37) ◽  
pp. 49115 ◽  
Author(s):  
Pavel Sengupta ◽  
Aritri Ghosh ◽  
Navonil Bose ◽  
Sampad Mukherjee ◽  
Amit Roy Chowdhury ◽  
...  
Keyword(s):  
Conducting Polymer ◽  
Biomedical Applications ◽  
Vinylidene Fluoride ◽  
Comparative Assessment ◽  
Electrospun Nanofiber ◽  
Poly Vinylidene Fluoride ◽  
Nanofiber Membranes

scholarly journals Dynamic wettability and contact angles of poly(vinylidene fluoride) nanofiber membranes grafted with acrylic acid

2010 ◽  
Vol 4 (9) ◽  
pp. 551-558 ◽  
Author(s):  
F. L. Huang ◽  
Q. Q. Wang ◽  
Q. F. Wei ◽  
W. D. Gao ◽  
H. Y. Shou ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Vinylidene Fluoride ◽  
Contact Angles ◽  
Poly Vinylidene Fluoride ◽  
Nanofiber Membranes

Actuation Behavior of CP Actuator Based on Polypyrrole and PVDF

2007 ◽  
Vol 29-30 ◽  
pp. 363-366 ◽  
Author(s):  
J.M. Ha ◽  
Hyun Ok Lim ◽  
Nam Ju Jo
Keyword(s):  
Polymer Electrolyte ◽  
Conducting Polymer ◽  
Solid Polymer Electrolyte ◽  
Vinylidene Fluoride ◽  
Oxidation Process ◽  
Electrochemical Polymerization ◽  
Solid Polymer ◽  
Poly Vinylidene Fluoride

Conducting polymer (CP) actuators undergo volumetric changes due to the movement of dopant ions into the film during the electrical oxidation process. In this work, PPy/SPE/PPy electroactive tri-layer actuator was prepared by the electrochemical polymerization of pyrrole and the actuation characteristics were studied. An all-solid actuator, consisting of two polypyrrole (PPy) films and a solid polymer electrolyte (SPE) based on poly(vinylidene fluoride) (PVDF), clearly showed a reversible displacement in an atmosphere when a voltage was applied.

scholarly journals Acoustic Energy Harvesting and Sensing via Electrospun PVDF Nanofiber Membrane

Sensors ◽  
2020 ◽  
Vol 20 (11) ◽  
pp. 3111 ◽  
Author(s):  
Nader Shehata ◽  
Ahmed H. Hassanin ◽  
Eman Elnabawy ◽  
Remya Nair ◽  
Sameer A. Bhat ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Low Cost ◽  
Acoustic Signals ◽  
Acoustic Energy ◽  
Electrospun Nanofiber ◽  
Electric Voltage ◽  
Poly Vinylidene Fluoride ◽  
Innovative Solution ◽  
Acoustic Energy Harvesting ◽  
Spectrum Region

This paper introduces a new usage of piezoelectric poly (vinylidene fluoride) (PVDF) electrospun nanofiber (NF) membrane as a sensing unit for acoustic signals. In this work, an NF mat has been used as a transducer to convert acoustic signals into electric voltage outcomes. The detected voltage has been analyzed as a function of both frequency and amplitude of the excitation acoustic signal. Additionally, the detected AC signal can be retraced as a function of both frequency and amplitude with some wave distortion at relatively higher amplitudes and within a certain acoustic spectrum region. Meanwhile, the NFs have been characterized through piezoelectric responses, beta sheet calculations and surface morphology. This work is promising as a low-cost and innovative solution to harvest acoustic signals coming from wide resources of sound and noise.

scholarly journals Towards Poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene)-Based Soft Actuators: Films and Electrospun Aligned Nanofiber Mats

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 172
Author(s):  
Riccardo D’Anniballe ◽  
Andrea Zucchelli ◽  
Raffaella Carloni
Keyword(s):  
Vinylidene Fluoride ◽  
Weight Ratio ◽  
Tensile Load ◽  
Mechanical Analysis ◽  
Load Test ◽  
Uniaxial Tensile ◽  
Electrospun Nanofiber ◽  
Poly Vinylidene Fluoride ◽  
Soft Actuators ◽  
Electrostrictive Effect

In the pursuit of designing a linear soft actuator with a high force-to-weight ratio and a stiffening behavior, this paper analyzes the electrostrictive effect of the poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) polymer in the form of film and aligned electrospun nanofiber mat. An experimental setup is realized to evaluate the electrostrictive effect of the specimens disjointly from the Maxwell stress. In particular, an uniaxial load test is designed to evaluate the specimens’ forces produced by their axial contraction (i.e., the electrostrictive effect) when an external electric field is applied, while an uniaxial tensile load test is designed to show the specimens’ stiffening properties. This electro-mechanical analysis demonstrates that both the film and the nanofiber mat are electrostrictive, and that the nanofiber mat exhibits a force-to-weight ratio ∼65% higher than the film and, therefore, a larger electrostrictive effect. Moreover, both the film and the nanofiber mat show a stiffening behavior, which is more evident for the nanofiber mat than the film and is proportional to the weight of the material. This study concludes that, thanks to its electro-mechanical properties, the poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene), especially in the form of aligned electrospun nanofiber mat, has high potential to be used as electro-active polymer for soft actuators in biomedical and biorobotics applications.

Poly(vinylidene fluoride)/poly(3-methylthiophene) core–shell nanocomposites with improved structural and electronic properties of the conducting polymer component

2018 ◽  
Vol 20 (9) ◽  
pp. 6450-6461 ◽  
Author(s):  
Nikolay A. Ogurtsov ◽  
Valery N. Bliznyuk ◽  
Andrii V. Mamykin ◽  
Oleksandr L. Kukla ◽  
Yuri P. Piryatinski ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Conducting Polymer ◽  
Vinylidene Fluoride ◽  
Sensory Properties ◽  
Core Shell ◽  
Structural And Electronic Properties ◽  
Poly Vinylidene Fluoride ◽  
Polymer Component

Significant improvements in structural, electronic and sensory properties of P3MT have been achieved due to its synthesis in the presence of submicron PVDF particles.

Sign in / Sign up

Export Citation Format

Share Document