izpis_h1_title_alt

Mechanisms of single-walled carbon nanotube network formation and its configuration in polymer-based nanocomposites
ID Oseli, Alen (Avtor), ID Vesel, Alenka (Avtor), ID Žagar, Ema (Avtor), ID Slemenik Perše, Lidija (Avtor)

URLURL - Izvorni URL, za dostop obiščite https://pubs.acs.org/doi/10.1021/acs.macromol.0c02763# Povezava se odpre v novem oknu
.pdfPDF - Predstavitvena datoteka, prenos (14,83 MB)
MD5: 24BB7B5B8F53F4A9C26CE864699825E6

Izvleček
The reinforcing and conductive performance of carbon nanotube polymer-based nanocomposites depends on the established network and its configuration. Within this study, we report on the underlying mechanisms of such network formation utilizing single-walled carbon nanotubes (SWCNTs) in low- and high-density polyethylene matrices. Mechanisms were theoretically evaluated through Doi-Edwards theory and experimentally confirmed through plasma etching coupled with electron microscopy as well as rheological flow tests. Results showed that the established network is constructed from SWCNT bundles, which geometrically entangle at a critical volume fraction [phi]v,crit (number of rods: [beta approximately equal to] 30). Below [phi]v,crit, the bundles behave as individual units and may align in the flow direction. Above [phi]v,crit, the rotation of bundles is constrained by neighboring units, leading to a random network configuration. Moreover, the theory successfully explains SWCNT bundle behavior as a Brownian entity and predicts network formation through diminishing thermo- and hydro-dynamically driven diffusion, which can be manipulated during the production to enhance reinforcing/conductive functionality of such materials.

Jezik:Angleški jezik
Ključne besede:nanocomposites, single-walled carbon nanotubes, network formation, molecular dynamics, Doi-Edwards theory
Vrsta gradiva:Članek v reviji (dk_c)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2021
Status objave pri reviji:Objavljeno
Verzija članka:Založnikova različica članka
Poslano v recenzijo:04.03.2021
Datum objave:13.04.2021
Št. strani:Str. 3334-3346
Številčenje:Vol. 54, iss. 7
PID:20.500.12556/RUL-126692 Povezava se odpre v novem oknu
UDK:620.168(045)
ISSN pri članku:0024-9297
DOI:10.1021/acs.macromol.0c02763 Povezava se odpre v novem oknu
COBISS.SI-ID:58206467 Povezava se odpre v novem oknu
Datum objave v RUL:04.05.2021
Število ogledov:274
Število prenosov:50
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
:
Objavi na:AddThis
AddThis uporablja piškotke, za katere potrebujemo vaše privoljenje.
Uredi privoljenje...

Gradivo je del revije

Naslov:Macromolecules
Skrajšan naslov:Macromolecules
Založnik:American Chemical Society
ISSN:0024-9297
COBISS.SI-ID:25886464 Povezava se odpre v novem oknu

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:13.04.2021

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:nanokompoziti, eno-stenske ogljikove nano-cevke, nastanek omrežja, molekularna dinamika, Doi-Edwards teorija

Projekti

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0264
Naslov:Trajnostni Polimerni materiali in Tehnologije

Podobna dela

Podobna dela v RUL:
Podobna dela v drugih slovenskih zbirkah:

Nazaj