Characterization of Polyamide 6/Multilayer Graphene Nanoplatelet Composite Textile Filaments Obtained Via In Situ Polymerization and Melt Spinning
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...
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| Format: | Article |
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MDPI AG
2020-08-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/12/8/1787 |
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| author | Jelena Vasiljević Andrej Demšar Mirjam Leskovšek Barbara Simončič Nataša Čelan Korošin Ivan Jerman Matic Šobak Gregor Žitko Nigel Van de Velde Marija Čolović |
| author_facet | Jelena Vasiljević Andrej Demšar Mirjam Leskovšek Barbara Simončič Nataša Čelan Korošin Ivan Jerman Matic Šobak Gregor Žitko Nigel Van de Velde Marija Čolović |
| author_sort | Jelena Vasiljević |
| collection | DOAJ |
| description | 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 <i>ε</i>-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 <i>ε</i>-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. |
| first_indexed | 2024-03-10T17:42:01Z |
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| id | doaj.art-b6ba13d4d5c949aa9ec083fd0c74d9ed |
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| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T17:42:01Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-b6ba13d4d5c949aa9ec083fd0c74d9ed2023-11-20T09:39:58ZengMDPI AGPolymers2073-43602020-08-01128178710.3390/polym12081787Characterization of Polyamide 6/Multilayer Graphene Nanoplatelet Composite Textile Filaments Obtained Via In Situ Polymerization and Melt SpinningJelena Vasiljević0Andrej Demšar1Mirjam Leskovšek2Barbara Simončič3Nataša Čelan Korošin4Ivan Jerman5Matic Šobak6Gregor Žitko7Nigel Van de Velde8Marija Čolović9Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva 12, 1000 Ljubljana, SloveniaFaculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva 12, 1000 Ljubljana, SloveniaFaculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva 12, 1000 Ljubljana, SloveniaFaculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva 12, 1000 Ljubljana, SloveniaFaculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, SloveniaNational Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, SloveniaNational Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, SloveniaNational Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, SloveniaNational Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, SloveniaNational Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, SloveniaStudies 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 <i>ε</i>-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 <i>ε</i>-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.https://www.mdpi.com/2073-4360/12/8/1787polyamide 6graphene nanoplateletsin situ polymerizationmelt spinningtextile fibersmechanical properties |
| spellingShingle | Jelena Vasiljević Andrej Demšar Mirjam Leskovšek Barbara Simončič Nataša Čelan Korošin Ivan Jerman Matic Šobak Gregor Žitko Nigel Van de Velde Marija Čolović Characterization of Polyamide 6/Multilayer Graphene Nanoplatelet Composite Textile Filaments Obtained Via In Situ Polymerization and Melt Spinning Polymers polyamide 6 graphene nanoplatelets in situ polymerization melt spinning textile fibers mechanical properties |
| title | Characterization of Polyamide 6/Multilayer Graphene Nanoplatelet Composite Textile Filaments Obtained Via In Situ Polymerization and Melt Spinning |
| title_full | Characterization of Polyamide 6/Multilayer Graphene Nanoplatelet Composite Textile Filaments Obtained Via In Situ Polymerization and Melt Spinning |
| title_fullStr | Characterization of Polyamide 6/Multilayer Graphene Nanoplatelet Composite Textile Filaments Obtained Via In Situ Polymerization and Melt Spinning |
| title_full_unstemmed | Characterization of Polyamide 6/Multilayer Graphene Nanoplatelet Composite Textile Filaments Obtained Via In Situ Polymerization and Melt Spinning |
| title_short | Characterization of Polyamide 6/Multilayer Graphene Nanoplatelet Composite Textile Filaments Obtained Via In Situ Polymerization and Melt Spinning |
| title_sort | characterization of polyamide 6 multilayer graphene nanoplatelet composite textile filaments obtained via in situ polymerization and melt spinning |
| topic | polyamide 6 graphene nanoplatelets in situ polymerization melt spinning textile fibers mechanical properties |
| url | https://www.mdpi.com/2073-4360/12/8/1787 |
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