Melt electrowriting of electroactive poly(vinylidene difluoride) fibers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F19%3A63523455" target="_blank" >RIV/70883521:28610/19:63523455 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/pi.5759" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/pi.5759</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pi.5759" target="_blank" >10.1002/pi.5759</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Melt electrowriting of electroactive poly(vinylidene difluoride) fibers

Popis výsledku v původním jazyce

Poly(vinylidene difluoride) (PVDF) has piezoelectric properties suitable for numerous applications such as flexible electronics, sensing and biomedical materials. In this study, individual fibers with diameters ranging from 17 to 55 µm were processed using melt electrowriting (MEW). Electroactive PVDF fibers can be fabricated via MEW, while the polymer can remain molten for up to 10 h without noticeable changes in the resulting fiber diameter. MEW processing parameters for PVDF were investigated, including applied voltage, pressure and temperature. A rapid fiber characterization methodology for MEW that automatically determines the fiber diameters from camera images taken of microscope slides was developed and validated. The outputs from this approach followed previous MEW processing trends already identified with different polymers, although overestimation of fiber diameters &lt;25 µm was observed. The transformation of the PVDF crystalline phase to the electroactive β phase was confirmed using piezo-force microscopy and revealed that the PVDF fibers possess piezoelectric responses showing d 33 ≈ 19 pm V –1 .

Název v anglickém jazyce

Melt electrowriting of electroactive poly(vinylidene difluoride) fibers

Popis výsledku anglicky

Poly(vinylidene difluoride) (PVDF) has piezoelectric properties suitable for numerous applications such as flexible electronics, sensing and biomedical materials. In this study, individual fibers with diameters ranging from 17 to 55 µm were processed using melt electrowriting (MEW). Electroactive PVDF fibers can be fabricated via MEW, while the polymer can remain molten for up to 10 h without noticeable changes in the resulting fiber diameter. MEW processing parameters for PVDF were investigated, including applied voltage, pressure and temperature. A rapid fiber characterization methodology for MEW that automatically determines the fiber diameters from camera images taken of microscope slides was developed and validated. The outputs from this approach followed previous MEW processing trends already identified with different polymers, although overestimation of fiber diameters &lt;25 µm was observed. The transformation of the PVDF crystalline phase to the electroactive β phase was confirmed using piezo-force microscopy and revealed that the PVDF fibers possess piezoelectric responses showing d 33 ≈ 19 pm V –1 .

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Polymer International

ISSN

0959-8103

e-ISSN

—

Svazek periodika

68

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

735-745

Kód UT WoS článku

000461093900017

EID výsledku v databázi Scopus

2-s2.0-85060656521