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Ductile/brittle PA6/PS system: effect of carbon nanoplatelets‐modified interface on performance
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SYSNO ASEP 0525446 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Ductile/brittle PA6/PS system: effect of carbon nanoplatelets‐modified interface on performance Author(s) Kelnar, Ivan (UMCH-V) RID, ORCID
Zhigunov, Alexander (UMCH-V) RID, ORCID
Kaprálková, Ludmila (UMCH-V)
Fortelný, Ivan (UMCH-V) RID
Krejčíková, Sabina (UMCH-V)
Dybal, Jiří (UMCH-V) RID, ORCID
Janata, Miroslav (UMCH-V) RID
Brus, Jiří (UMCH-V) RID, ORCID
Kobera, Libor (UMCH-V) RID, ORCID
Štengl, Václav (UACH-T) RID, ORCID, SAIArticle number e49100 Source Title Journal of Applied Polymer Science. - : Wiley - ISSN 0021-8995
Roč. 137, č. 37 (2020), s. 1-12Number of pages 12 s. Language eng - English Country US - United States Keywords graphene and fullerenes ; mechanical properties ; morphology Subject RIV JI - Composite Materials OECD category Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics Subject RIV - cooperation Institute of Inorganic Chemistry - Inorganic Chemistry R&D Projects GA16-03194S GA ČR - Czech Science Foundation (CSF) GA19-06065S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UMCH-V - RVO:61389013 ; UACH-T - RVO:61388980 UT WOS 000512365600001 EID SCOPUS 85079415422 DOI 10.1002/app.49100 Annotation Addition of rigid PS to ductile PA6 can lead to higher toughness provided plastic deformation of PS is achieved. The current study deals with upgrading of this system by graphene, graphene oxide (GO), and GO with grafted polystyrene (GO‐g ‐PS). Low amount of these carbon nanoplatelets can enhance performance of the PA/PS 90/10 system with the best‐balanced properties achieved with GO‐g ‐PS by unique combination of reinforcement with the favorable effect of the GO‐g ‐PS‐modified interface on plastic deformation of the PS phase causing higher impact resistance. Simultaneous linking of PA chains and hydrogen bonding causes “anchoring” of PS inclusions in the PA6 phase. This results in support of hydrostatic pressure evolution during loading and thus extensive yielding of PS. Another positive effect is reduction of pullout of in situ formed fibrous inclusions, which is different from rigid short‐fiber composites. The study highlights high potential of GO modified with polymer chains to upgrade polymer systems via tailoring the interface. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2021 Electronic address https://onlinelibrary.wiley.com/doi/full/10.1002/app.49100
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