Alen Oseli (Avtor), Alenka Vesel (Avtor), Miran Mozetič (Avtor), Ema Žagar (Avtor), Miroslav Huskić (Avtor), Lidija Slemenik Perše (Avtor)

Povzetek

The mesh formation of single-walled carbon nanotube (SWCNT) superstructure, i.e. nano-mesh, in low- and high-density polyethylene (LDPE and HDPE) matrices was observed by using plasma etching technique and SEM analysis. Nano-mesh was established by two mechanisms: i) alignment of SWCNT bundles (forming network backbone) and ii) shish-kebab induced crystallization (forming network net). The network was formed at low SWCNT content due to the high aspect ratio of nano-filler, which additionally contributed to alignment. Established nano-mesh superstructure caused confinement effect disrupting crystallization and melting kinetics, which directly affected mechanical properties. Although mechanical properties of LDPE and HDPE nanocomposites profoundly improved, i.e. Young%s modulus increased for 230% and 30%, respectively, at only 1 wt% of SWCNTs, HDPE nanocomposites showed visible confinement that reduced effective reinforcement. It seems that HDPE nanocomposites cannot achieve full reinforcing potential since confinement effect restricts the crystal growth, which gradually reduces effective reinforcement in semi-dilute regime.

Ključne besede

nanocomposites;nano-structures;physical properties;physical methods of analysis;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 620.3(045)
COBISS: 17053187 Povezava se bo odprla v novem oknu
ISSN: 1359-835X
Št. ogledov: 679
Št. prenosov: 403
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: nanokompoziti;nano-strukture;fizikalne lastnosti;metode fizikalnih analiz;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-10
Zvezek: ǂVol. ǂ 136
Čas izdaje: Sep. 2020
DOI: 10.1016/j.compositesa.2020.105972
ID: 11752594