Influence of PVDF Processing Techniques on the Final Structural and Sensing Properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F21%3A63546078" target="_blank" >RIV/70883521:28610/21:63546078 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of PVDF Processing Techniques on the Final Structural and Sensing Properties

Popis výsledku v původním jazyce

This study is focused on tha effect of differeni processing techniques of poly(vinylidene fluoride) (PVDF) sheets on its sensing capabilities. The goal of this research is to find easy and relatively cheap way of produdng PVDF sensing films. PVDF is seems to be promising material due to its excellent píezoelectríc propertíes and good flexibility dueto the presence of electroactive β-phase. By the stretching of the α-phase PVDF films, β-phase PVDF can be attained. Our prevíous studíes investigated the effect of the different molecular weight of the PVDF on the -phase development but great impact on it has also different technology of production which can be foud in industry. This research compare methods of hot pressing, blow moulding and extrusion which are common in industrial production. The transformation of the α-phase to the electro-active β-phase was analyzed using FTIR. As a complementary method, the XRD was applied, and it confirmed the data resulting from the FTIR analysis. The samples were polarized by exposing to different temperatures and electrical fields and piezoelectric charge coefficient (d33) was investigated: The most promising PVDF material and obtained d33 coefficient of our mariufactured films provide similar performance in comparison to commercially produced materials.

Název v anglickém jazyce

Influence of PVDF Processing Techniques on the Final Structural and Sensing Properties

Popis výsledku anglicky

This study is focused on tha effect of differeni processing techniques of poly(vinylidene fluoride) (PVDF) sheets on its sensing capabilities. The goal of this research is to find easy and relatively cheap way of produdng PVDF sensing films. PVDF is seems to be promising material due to its excellent píezoelectríc propertíes and good flexibility dueto the presence of electroactive β-phase. By the stretching of the α-phase PVDF films, β-phase PVDF can be attained. Our prevíous studíes investigated the effect of the different molecular weight of the PVDF on the -phase development but great impact on it has also different technology of production which can be foud in industry. This research compare methods of hot pressing, blow moulding and extrusion which are common in industrial production. The transformation of the α-phase to the electro-active β-phase was analyzed using FTIR. As a complementary method, the XRD was applied, and it confirmed the data resulting from the FTIR analysis. The samples were polarized by exposing to different temperatures and electrical fields and piezoelectric charge coefficient (d33) was investigated: The most promising PVDF material and obtained d33 coefficient of our mariufactured films provide similar performance in comparison to commercially produced materials.

Druh

O - Ostatní výsledky

CEP obor

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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