Effect of controllable modification of SrTiO ceramic nanoparticles on piezo-active nanocomposites properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F24%3A63579599" target="_blank" >RIV/70883521:28110/24:63579599 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28610/24:63579599

Výsledek na webu

<a href="https://www.confer.cz/nanocon/2023/4808-effect-of-controllable-modification-of-srtio3-ceramic-nanoparticles-on-piezo-active-nanocomposites-properties" target="_blank" >https://www.confer.cz/nanocon/2023/4808-effect-of-controllable-modification-of-srtio3-ceramic-nanoparticles-on-piezo-active-nanocomposites-properties</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/nanocon.2023.4808" target="_blank" >10.37904/nanocon.2023.4808</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of controllable modification of SrTiO ceramic nanoparticles on piezo-active nanocomposites properties

Popis výsledku v původním jazyce

In this work the P(VDF-co-HFP) was chosen as a matrix due to the better mechanical properties compared to neat PVDF. Strontium titanate (SrTiO3) was chosen as one of the lead-free ceramics and to observe its impact of modification on nanocomposite properties. SrTiO3 nanoparticles were successfully coated with (2,2,2 triflouroethyl methacrylate) short polymer brushes using surface-initiated atom transfer radical polymerization (SI-ATRP) in order to improve the compatibility between the particles and polymer matrix. Polymer grafted from the particles surface was analyzed by gel permeation chromatography (polymer chain length and polydispersity index) and using nuclear magnetic resonance (monomer conversion). Both, neat SrTiO3 nanoparticles and their modified analogues were characterized and further compounded with poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-co-HFP) to obtain homogenous nanocomposites. Mechanical properties were analyzed using DMA and tensile tests. Characteristic temperatures and crystallinity were evaluated using DSC. The β-phase content was calculated using FTIR. Finally,. It was found out that modification of nanoparticles significantly enhanced the piezo-electric activity namely d33 coefficient due to the better homogeneity of the system and improved mechanical properties.

Název v anglickém jazyce

Effect of controllable modification of SrTiO ceramic nanoparticles on piezo-active nanocomposites properties

Popis výsledku anglicky

In this work the P(VDF-co-HFP) was chosen as a matrix due to the better mechanical properties compared to neat PVDF. Strontium titanate (SrTiO3) was chosen as one of the lead-free ceramics and to observe its impact of modification on nanocomposite properties. SrTiO3 nanoparticles were successfully coated with (2,2,2 triflouroethyl methacrylate) short polymer brushes using surface-initiated atom transfer radical polymerization (SI-ATRP) in order to improve the compatibility between the particles and polymer matrix. Polymer grafted from the particles surface was analyzed by gel permeation chromatography (polymer chain length and polydispersity index) and using nuclear magnetic resonance (monomer conversion). Both, neat SrTiO3 nanoparticles and their modified analogues were characterized and further compounded with poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-co-HFP) to obtain homogenous nanocomposites. Mechanical properties were analyzed using DMA and tensile tests. Characteristic temperatures and crystallinity were evaluated using DSC. The β-phase content was calculated using FTIR. Finally,. It was found out that modification of nanoparticles significantly enhanced the piezo-electric activity namely d33 coefficient due to the better homogeneity of the system and improved mechanical properties.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

NANOCON 2023 Conference Proceedings

ISBN

978-80-88365-15-0

ISSN

2694-930X

e-ISSN

—

Počet stran výsledku

6

Strana od-do

386-391

Název nakladatele

Tanger Ltd.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

18. 10. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001234125400061