Jelena Vasiljević (Avtor), Andrej Demšar (Avtor), Mirjam Leskovšek (Avtor), Barbara Simončič (Avtor), Nataša Čelan Korošin (Avtor), Ivan Jerman (Avtor), Matic Šobak (Avtor), Gregor Žitko (Avtor), Nigel Willy Van de Velde (Avtor), Marija Čolović (Avtor)

Povzetek

Studies of the production of fiber-forming polyamide 6 (PA6)/graphene composite material and melt-spun textile fibers are scarce, but research to date reveals that achieving the high dispersion state of graphene is the main challenge to nanocomposite production. Considering the significant progress made in the industrial mass production of graphene nanoplatelets (GnPs), this study explored the feasibility of production of PA6/GnPs composite fibers using the commercially available few-layer GnPs. To this aim, the GnPs were pre-dispersed in molten ε-caprolactam at concentrations equal to 1 and 2 wt %, and incorporated into the PA6 matrix by the in situ water-catalyzed ring-opening polymerization of ε-caprolactam, which was followed by melt spinning. The results showed that the incorporated GnPs did not markedly influence the melting temperature of PA6 but affected the crystallization temperature, fiber bulk structure, crystallinity, and mechanical properties. Furthermore, GnPs increased the PA6 complex viscosity, which resulted in the need to adjust the parameters of melt spinning to enable continuous filament production. Although the incorporation of GnPs did not provide a reinforcing effect of PA6 fibers and reduced fiber tensile properties, the thermal stability of the PA6 fiber increased. The increased melt viscosity and graphene anti-dripping properties postponed melt dripping in the vertical flame spread test, which consequently prolonged burning within the samples.

Ključne besede

poliamid 6;nanoploščice grafena;in situ polimerizacija;predenje iz taline;tekstilna vlakna;mehansk lastnosti;termična stabilnost;gorljivost;polyamide 6;graphene nanoplatelets;in situ polymerization;melt spinning;textile fibers;mechanical properties;thermal stability;flammability;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL NTF - Naravoslovnotehniška fakulteta
UDK: 677
COBISS: 24970755 Povezava se bo odprla v novem oknu
ISSN: 2073-4360
Št. ogledov: 166
Št. prenosov: 56
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: poliamid 6;nanoploščice grafena;in situ polimerizacija;predenje iz taline;tekstilna vlakna;mehanske lastnosti;termična stabilnost;gorljivost;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-19
Letnik: ǂVol. ǂ12
Zvezek: ǂiss. ǂ8
Čas izdaje: 10 Aug. 2020
DOI: 10.3390/polym12081787
ID: 14249370