Evolution of morphological, electrical, thermal, and mechanical properties of elastomer nanocomposites with different sizes of MWCNTs

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F25%3A00617022" target="_blank" >RIV/61389013:_____/25:00617022 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1002/app.56628" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/app.56628</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/app.56628" target="_blank" >10.1002/app.56628</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evolution of morphological, electrical, thermal, and mechanical properties of elastomer nanocomposites with different sizes of MWCNTs

Popis výsledku v původním jazyce

Ethylene-propylene-diene-monomer (EPDM) nanocomposites with three various types of multiwall carbon nanotubes (MWCNTs) were fabricated to investigate the size effect of MWCNTs on the morphological, electrical, thermal, mechanical, and viscoelastic properties, as well as swelling ratio and crosslinking density. MWCNTs enhance electrical, thermal, mechanical, and viscoelastic properties regardless of MWCNT size. The MWCNT size is vital in determining percolation thresholds and thermal conductivity, however, it considerably influences the electrical conductivity in only the percolation threshold region (2–10 phr). In addition, the diameter of MWCNTs is a more regulating factor for nanocomposites' electrical properties than length. The EPDM nanocomposites, including MWCNTs with a longer length, low diameter, and higher specific surface area (SSA), show a better thermal conductivity enhancement (95%) due to forming more easily thermally conductive networks. The size of MWCNTs is a negligible key factor for mechanical and viscoelastic properties. With increasing MWCNT contents, the swelling ratio decreases, and crosslinking density increases. MWCNTs with lower diameter, length, and higher SSA exhibit less enhancement in all mentioned properties of EPDM-based nanocomposites due to worse dispersion in the matrix.

Název v anglickém jazyce

Evolution of morphological, electrical, thermal, and mechanical properties of elastomer nanocomposites with different sizes of MWCNTs

Popis výsledku anglicky

Ethylene-propylene-diene-monomer (EPDM) nanocomposites with three various types of multiwall carbon nanotubes (MWCNTs) were fabricated to investigate the size effect of MWCNTs on the morphological, electrical, thermal, mechanical, and viscoelastic properties, as well as swelling ratio and crosslinking density. MWCNTs enhance electrical, thermal, mechanical, and viscoelastic properties regardless of MWCNT size. The MWCNT size is vital in determining percolation thresholds and thermal conductivity, however, it considerably influences the electrical conductivity in only the percolation threshold region (2–10 phr). In addition, the diameter of MWCNTs is a more regulating factor for nanocomposites' electrical properties than length. The EPDM nanocomposites, including MWCNTs with a longer length, low diameter, and higher specific surface area (SSA), show a better thermal conductivity enhancement (95%) due to forming more easily thermally conductive networks. The size of MWCNTs is a negligible key factor for mechanical and viscoelastic properties. With increasing MWCNT contents, the swelling ratio decreases, and crosslinking density increases. MWCNTs with lower diameter, length, and higher SSA exhibit less enhancement in all mentioned properties of EPDM-based nanocomposites due to worse dispersion in the matrix.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Polymer Science

ISSN

0021-8995

e-ISSN

1097-4628

Svazek periodika

142

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

e56628

Kód UT WoS článku

001388986400001

EID výsledku v databázi Scopus

2-s2.0-85214116093