Largely enhanced discharge energy density in linear polymer nanocomposites by designing a sandwich structure

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU133001" target="_blank" >RIV/00216305:26620/19:PU133001 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.rsc.org/en/Content/ArticleLanding/2018/TC/C8TC04447C#!divAbstract" target="_blank" >https://pubs.rsc.org/en/Content/ArticleLanding/2018/TC/C8TC04447C#!divAbstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compositesa.2019.03.016" target="_blank" >10.1016/j.compositesa.2019.03.016</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Largely enhanced discharge energy density in linear polymer nanocomposites by designing a sandwich structure

Popis výsledku v původním jazyce

The development of flexible film dielectric capacitors with high discharge energy densities is of central significance for advanced electric and electronic power systems. Herein, a novel sandwich structure designed barium titanate/poly(methyl methacrylate) (BT/PMMA) nanocomposites are prepared layer-by-layer using solution casting method. The outer two layers with low BT nanoparticles concentration offered a considerably higher breakdown strength, while the central polarization layer with higher BT nanoparticles concentration presented higher dielectric constant to the nanocomposites. Consequently, 1-9-1 BT/PMMA nanocomposite compared to its single-layered counterpart (i.e. 9 wt% BT/PMMA) showed a ∼238% improvement in discharge energy density (i.e. from 1.8 J/cm 3 to 6.08 J/cm 3 ). The discharge rate analysis presented that 1-9-1 BT/PMMA discharges in 2.44 μs with a power density of about 0.5 MW/cm 3 at a time constant (τ 0.9 ). This work significantly paves the way for using sandwich-structured linear polymer nanocomposites in high energy density and fast discharge rate dielectrics application.

Název v anglickém jazyce

Largely enhanced discharge energy density in linear polymer nanocomposites by designing a sandwich structure

Popis výsledku anglicky

The development of flexible film dielectric capacitors with high discharge energy densities is of central significance for advanced electric and electronic power systems. Herein, a novel sandwich structure designed barium titanate/poly(methyl methacrylate) (BT/PMMA) nanocomposites are prepared layer-by-layer using solution casting method. The outer two layers with low BT nanoparticles concentration offered a considerably higher breakdown strength, while the central polarization layer with higher BT nanoparticles concentration presented higher dielectric constant to the nanocomposites. Consequently, 1-9-1 BT/PMMA nanocomposite compared to its single-layered counterpart (i.e. 9 wt% BT/PMMA) showed a ∼238% improvement in discharge energy density (i.e. from 1.8 J/cm 3 to 6.08 J/cm 3 ). The discharge rate analysis presented that 1-9-1 BT/PMMA discharges in 2.44 μs with a power density of about 0.5 MW/cm 3 at a time constant (τ 0.9 ). This work significantly paves the way for using sandwich-structured linear polymer nanocomposites in high energy density and fast discharge rate dielectrics application.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING

ISSN

1359-835X

e-ISSN

1878-5840

Svazek periodika

121

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

115-122

Kód UT WoS článku

000470941200012

EID výsledku v databázi Scopus

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