The effects of molecular and processing parameters on energy harvesting capability of PVDF-based nanogenerators

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F21%3A63543498" target="_blank" >RIV/70883521:28610/21:63543498 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26220/21:PU144112

Výsledek na webu

<a href="https://www.confer.cz/nanocon/2020/3720-the-effect-of-molecular-parameters-on-vibration-sensing-capability-of-pvdf-based-nanosystems" target="_blank" >https://www.confer.cz/nanocon/2020/3720-the-effect-of-molecular-parameters-on-vibration-sensing-capability-of-pvdf-based-nanosystems</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/nanocon.2020.3720" target="_blank" >10.37904/nanocon.2020.3720</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effects of molecular and processing parameters on energy harvesting capability of PVDF-based nanogenerators

Popis výsledku v původním jazyce

In the research of the alternative vibration sensing systems, the major potential is attributed to piezoelectric materials that can generate the electrical output from the waste vibration sources of the industrial machines. Poly(vinylidene fluoride) (PVDF), mostly in the electroactive β-phase, is a great option due to its excellent piezoelectric properties and good flexibility. The β-phase PVDF can be obtained by simple stretching of the a- phase PVDF films, and the conditions of this process are well documented. Surprisingly, the implications of molecular parameters of the PVDF have not been addressed yet. This study investigates the effect of the molecular weight (Mw) of the PVDF on the β-phase development and consequential vibration sensing capabilities after uniaxial stretching. The successful phase transformation was confirmed using FTIR and XRD. In the FTIR spectra, a typical a-phase peak at 762 cm-1 diminished giving rise to the β-phase peak at 840 cm-1 after the stretching. The results also showed a remarkable impact of the Mw on d33 coefficient making Mw an important parameter that should not be overlooked in designing the PVDF-based sensing elements. The obtained data are highly important for the optimization of the PVDF-based vibration sensors applicable in the efficient structural and health monitoring nanosystems.

Název v anglickém jazyce

The effects of molecular and processing parameters on energy harvesting capability of PVDF-based nanogenerators

Popis výsledku anglicky

In the research of the alternative vibration sensing systems, the major potential is attributed to piezoelectric materials that can generate the electrical output from the waste vibration sources of the industrial machines. Poly(vinylidene fluoride) (PVDF), mostly in the electroactive β-phase, is a great option due to its excellent piezoelectric properties and good flexibility. The β-phase PVDF can be obtained by simple stretching of the a- phase PVDF films, and the conditions of this process are well documented. Surprisingly, the implications of molecular parameters of the PVDF have not been addressed yet. This study investigates the effect of the molecular weight (Mw) of the PVDF on the β-phase development and consequential vibration sensing capabilities after uniaxial stretching. The successful phase transformation was confirmed using FTIR and XRD. In the FTIR spectra, a typical a-phase peak at 762 cm-1 diminished giving rise to the β-phase peak at 840 cm-1 after the stretching. The results also showed a remarkable impact of the Mw on d33 coefficient making Mw an important parameter that should not be overlooked in designing the PVDF-based sensing elements. The obtained data are highly important for the optimization of the PVDF-based vibration sensors applicable in the efficient structural and health monitoring nanosystems.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/GA19-17457S" target="_blank" >GA19-17457S: Výroba a analýza flexibilních piezoelektrických vrstev pro chytré strojírenství</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings 12th International Conference on Nanomaterials - Research &amp; Application

ISBN

978-80-87294-98-7

ISSN

2694-930X

e-ISSN

—

Počet stran výsledku

6

Strana od-do

249-254

Název nakladatele

Tanger Ltd.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

21. 10. 2020

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000664505500042