Dynamic mechanical and dielectric properties of ethylene vinyl acetate/carbon nanotube composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F14%3A00427395" target="_blank" >RIV/61389013:_____/14:00427395 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1080/00222348.2013.846814" target="_blank" >http://dx.doi.org/10.1080/00222348.2013.846814</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/00222348.2013.846814" target="_blank" >10.1080/00222348.2013.846814</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamic mechanical and dielectric properties of ethylene vinyl acetate/carbon nanotube composites

Popis výsledku v původním jazyce

A comparative study of the dielectric and mechanical properties of ethylene vinyl acetate copolymer (EVA) filled with various concentrations of pristine and modified carbon nanotubes is reported. The surface of the carbon nanotubes was modified with 4-(2- (cholesteryloxycarboxy)ethyl) phenyl to improve the interaction of the filler with the block copolymer matrix. The improved interaction and the better dispersion of the modified carbon nanotubes (mMWCNTs) were demonstrated by a detailed study of the EVAmolecularmobility through dynamic mechanical analysis and broadband dielectric relaxation spectroscopy. The storage modulus of the nanocomposite with 6 wt.% of mMWCNTs at -50C was enhanced by 103%, whereas for the nanocomposite with the same amount of unmodified filler, the storage modulus was only enhanced by 76% compared to the pure elastomeric matrix. This difference is more pronounced in the rubbery region in which the storage moduli were increased by 117% and 48% for the composite

Název v anglickém jazyce

Dynamic mechanical and dielectric properties of ethylene vinyl acetate/carbon nanotube composites

Popis výsledku anglicky

A comparative study of the dielectric and mechanical properties of ethylene vinyl acetate copolymer (EVA) filled with various concentrations of pristine and modified carbon nanotubes is reported. The surface of the carbon nanotubes was modified with 4-(2- (cholesteryloxycarboxy)ethyl) phenyl to improve the interaction of the filler with the block copolymer matrix. The improved interaction and the better dispersion of the modified carbon nanotubes (mMWCNTs) were demonstrated by a detailed study of the EVAmolecularmobility through dynamic mechanical analysis and broadband dielectric relaxation spectroscopy. The storage modulus of the nanocomposite with 6 wt.% of mMWCNTs at -50C was enhanced by 103%, whereas for the nanocomposite with the same amount of unmodified filler, the storage modulus was only enhanced by 76% compared to the pure elastomeric matrix. This difference is more pronounced in the rubbery region in which the storage moduli were increased by 117% and 48% for the composite

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/TE01020118" target="_blank" >TE01020118: Elektronová mikroskopie</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Journal of Macromolecular Science - Physics

ISSN

0022-2348

e-ISSN

—

Svazek periodika

53

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

496-512

Kód UT WoS článku

000331602300012

EID výsledku v databázi Scopus

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