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Characterization of polyamide 6/multilayer graphene nanoplatelet composite textile filaments obtained via in situ polymerization and melt spinning
ID Vasiljević, Jelena (Author), ID Demšar, Andrej (Author), ID Leskovšek, Mirjam (Author), ID Simončič, Barbara (Author), ID Čelan Korošin, Nataša (Author), ID Jerman, Ivan (Author), ID Šobak, Matic (Author), ID Žitko, Gregor (Author), ID Van de Velde, Nigel Willy (Author), ID Čolović, Marija (Author)

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Abstract
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.

Language:English
Keywords:polyamide 6, graphene nanoplatelets, in situ polymerization, melt spinning, textile fibers, mechanical properties, thermal stability, flammability
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:NTF - Faculty of Natural Sciences and Engineering
FKKT - Faculty of Chemistry and Chemical Technology
Publication status:Published
Publication version:Version of Record
Year:2020
Number of pages:19 str.
Numbering:Vol. 12, iss. 8, art. 1787
PID:20.500.12556/RUL-134354 This link opens in a new window
UDC:677
ISSN on article:2073-4360
DOI:10.3390/polym12081787 This link opens in a new window
COBISS.SI-ID:24970755 This link opens in a new window
Publication date in RUL:10.01.2022
Views:567
Downloads:133
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Record is a part of a journal

Title:Polymers
Shortened title:Polymers
Publisher:Molecular Diversity Preservation International
ISSN:2073-4360
COBISS.SI-ID:517951257 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:10.08.2020

Secondary language

Language:Slovenian
Keywords:poliamid 6, nanoploščice grafena, in situ polimerizacija, predenje iz taline, tekstilna vlakna, mehanske lastnosti, termična stabilnost, gorljivost

Projects

Funder:ARRS - Slovenian Research Agency
Project number:Z2-9250
Name:Razvoj novih trajnostnih ognjevarnih poliamidnih vlaken s prevodnimi lastnostmi

Funder:ARRS - Slovenian Research Agency
Project number:P2-0213
Name:Tekstilije in ekologija

Funder:ARRS - Slovenian Research Agency
Project number:P2-0393
Name:Napredni materiali za nizkoogljično in trajnostno družbo

Funder:ARRS - Slovenian Research Agency
Project number:P1-0134
Name:Kemija za trajnostni razvoj

Funder:ARRS - Slovenian Research Agency
Project number:I0-0026
Name:Raziskovalni infrastrukturni center UL NTF

Funder:Other - Other funder or multiple funders
Funding programme:COST
Name:European Network to connect research and innovation efforts on advanced Smart Textiles
Acronym:CONTEXT

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