Non-Isothermal Crystallization Kinetics of Polyamide 6/Graphene Nanoplatelets Nanocomposites Obtained via In Situ Polymerization: Effect of Nanofiller Size
Thermoplastic resin transfer molding (T-RTM) technology was applied to synthesize graphene nanoplatelets-based nanocomposites via anionic ring-opening polymerization (AROP). Polyamide 6 (PA6) was obtained by AROP and was used as the polymeric matrix of the developed nanocomposites. The non-isotherma...
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| Format: | Article |
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MDPI AG
2023-10-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/20/4109 |
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| author | Joana Lagarinhos Sara Magalhães da Silva José Martinho Oliveira |
| author_facet | Joana Lagarinhos Sara Magalhães da Silva José Martinho Oliveira |
| author_sort | Joana Lagarinhos |
| collection | DOAJ |
| description | Thermoplastic resin transfer molding (T-RTM) technology was applied to synthesize graphene nanoplatelets-based nanocomposites via anionic ring-opening polymerization (AROP). Polyamide 6 (PA6) was obtained by AROP and was used as the polymeric matrix of the developed nanocomposites. The non-isothermal crystallization behavior of PA6 and nanocomposites was analyzed by differential scanning calorimetry (DSC). Nanocomposites with 0.5 wt.% of graphene nanoplatelets (GNPs) with two different diameter sizes were prepared. Results have shown that the crystallization temperature shifted to higher values in the presence of GNPs. This behavior is more noticeable for the nanocomposite prepared with smaller GNPs (PA6/GN). The crystallization kinetic behavior of all samples was assessed by Avrami and Liu’s models. It was observed that GNPs increased the crystallization rate, thus revealing a nucleating ability, and also validated the reduction of half-time crystallization values. Such tendency was also supported by the lower activation energy values determined by Friedman’s method. |
| first_indexed | 2024-03-10T20:56:38Z |
| format | Article |
| id | doaj.art-6892d8cc27e34869a9da76de803f8a91 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T20:56:38Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-6892d8cc27e34869a9da76de803f8a912023-11-19T17:51:27ZengMDPI AGPolymers2073-43602023-10-011520410910.3390/polym15204109Non-Isothermal Crystallization Kinetics of Polyamide 6/Graphene Nanoplatelets Nanocomposites Obtained via In Situ Polymerization: Effect of Nanofiller SizeJoana Lagarinhos0Sara Magalhães da Silva1José Martinho Oliveira2EMaRT Group—Emerging: Materials, Research, Technology, University of Aveiro, 3810-193 Aveiro, PortugalEMaRT Group—Emerging: Materials, Research, Technology, University of Aveiro, 3810-193 Aveiro, PortugalEMaRT Group—Emerging: Materials, Research, Technology, University of Aveiro, 3810-193 Aveiro, PortugalThermoplastic resin transfer molding (T-RTM) technology was applied to synthesize graphene nanoplatelets-based nanocomposites via anionic ring-opening polymerization (AROP). Polyamide 6 (PA6) was obtained by AROP and was used as the polymeric matrix of the developed nanocomposites. The non-isothermal crystallization behavior of PA6 and nanocomposites was analyzed by differential scanning calorimetry (DSC). Nanocomposites with 0.5 wt.% of graphene nanoplatelets (GNPs) with two different diameter sizes were prepared. Results have shown that the crystallization temperature shifted to higher values in the presence of GNPs. This behavior is more noticeable for the nanocomposite prepared with smaller GNPs (PA6/GN). The crystallization kinetic behavior of all samples was assessed by Avrami and Liu’s models. It was observed that GNPs increased the crystallization rate, thus revealing a nucleating ability, and also validated the reduction of half-time crystallization values. Such tendency was also supported by the lower activation energy values determined by Friedman’s method.https://www.mdpi.com/2073-4360/15/20/4109Polyamide 6 (PA6)anionic ring-opening polymerization (AROP)thermoplastic resin transfer molding (T-RTM)graphene nanoplatelets (GNP)nanocompositesnon-isothermal crystallization kinetics |
| spellingShingle | Joana Lagarinhos Sara Magalhães da Silva José Martinho Oliveira Non-Isothermal Crystallization Kinetics of Polyamide 6/Graphene Nanoplatelets Nanocomposites Obtained via In Situ Polymerization: Effect of Nanofiller Size Polymers Polyamide 6 (PA6) anionic ring-opening polymerization (AROP) thermoplastic resin transfer molding (T-RTM) graphene nanoplatelets (GNP) nanocomposites non-isothermal crystallization kinetics |
| title | Non-Isothermal Crystallization Kinetics of Polyamide 6/Graphene Nanoplatelets Nanocomposites Obtained via In Situ Polymerization: Effect of Nanofiller Size |
| title_full | Non-Isothermal Crystallization Kinetics of Polyamide 6/Graphene Nanoplatelets Nanocomposites Obtained via In Situ Polymerization: Effect of Nanofiller Size |
| title_fullStr | Non-Isothermal Crystallization Kinetics of Polyamide 6/Graphene Nanoplatelets Nanocomposites Obtained via In Situ Polymerization: Effect of Nanofiller Size |
| title_full_unstemmed | Non-Isothermal Crystallization Kinetics of Polyamide 6/Graphene Nanoplatelets Nanocomposites Obtained via In Situ Polymerization: Effect of Nanofiller Size |
| title_short | Non-Isothermal Crystallization Kinetics of Polyamide 6/Graphene Nanoplatelets Nanocomposites Obtained via In Situ Polymerization: Effect of Nanofiller Size |
| title_sort | non isothermal crystallization kinetics of polyamide 6 graphene nanoplatelets nanocomposites obtained via in situ polymerization effect of nanofiller size |
| topic | Polyamide 6 (PA6) anionic ring-opening polymerization (AROP) thermoplastic resin transfer molding (T-RTM) graphene nanoplatelets (GNP) nanocomposites non-isothermal crystallization kinetics |
| url | https://www.mdpi.com/2073-4360/15/20/4109 |
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