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Synergistic toughening and strengthening of an epoxy resin modified by simultaneous use of two different modifiers

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dc.title Synergistic toughening and strengthening of an epoxy resin modified by simultaneous use of two different modifiers en
dc.contributor.author Białkowska, Anita
dc.contributor.author Suroń, Patryk
dc.contributor.author Kucharczyk, Wojciech
dc.contributor.author Hanulíková, Barbora
dc.contributor.author Bakar, Mohamed
dc.relation.ispartof Bulletin of the Polish Academy of Sciences: Technical Sciences
dc.identifier.issn 0239-7528 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2024
utb.relation.volume 72
utb.relation.issue 3
dc.type article
dc.language.iso en
dc.publisher Polska Akademia Nauk
dc.identifier.doi 10.24425/bpasts.2024.149176
dc.relation.uri https://journals.pan.pl/dlibra/publication/149176/edition/130173/content
dc.subject epoxy resin en
dc.subject hybrid composites en
dc.subject mechanical and thermal properties en
dc.subject structure en
dc.subject morphology en
dc.description.abstract The present work investigates the effect of modifying an epoxy resin using two different modifiers. The mechanical and thermal properties were evaluated as a function of modifier type and content. The structure and morphology were also analyzed and related to the measured properties. Polyurethane (PUR) was used as a liquid modifier, while Cloisite Na+ and Nanomer I.28E are solid nanoparticles. Impact strength (IS) of hybrid nanocomposites based on 3.5 wt% PUR and 2 wt% Cloisite or 3.5 wt% PUR and 1 wt% Nanomer was maximally increased by 55% and 30%, respectively, as compared to the virgin epoxy matrix, exceeding that of the two epoxy/nanoparticle binaries but not that of the epoxy/PUR binary. Furthermore, a maximum increase in IS of approximately 20% as compared to the pristine matrix was obtained with the hybrid epoxy nanocomposite containing 0.5 wt% Cloisite and 1 wt% Nanomer, including a synergistic effect, due most likely to specific interactions between the nanoparticles and the epoxy matrix. The addition of polyurethane and nanoclays increased the thermal stability of epoxy composites significantly. However, DSC results showed that the addition of flexible polyurethane chains decreased the glass transition temperatures, while the softening point and the service temperature range of epoxy nanocomposites containing nanofillers were increased. FTIR analysis confirmed the occurrence of interaction between the epoxy matrix and added modifiers. All SEM micrographs showed significant roughness of the fracture surfaces with the formation of elongated platelets, explaining the increase in mechanical properties of the epoxy matrix. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1012037
utb.identifier.scopus 2-s2.0-85191900016
utb.source j-scopus
dc.date.accessioned 2024-10-22T08:18:20Z
dc.date.available 2024-10-22T08:18:20Z
dc.rights Attribution 4.0 International
dc.rights.uri http://creativecommons.org/licenses/by/4.0/
dc.rights.access openAccess
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Hanulíková, Barbora
utb.fulltext.affiliation Anita BIAŁKOWSKA1∗, Patryk SUROŃ 1, Wojciech KUCHARCZYk1, Barbora HANULIKOVA2, and Mohamed BAKAR3 1 Casimir Pulaski University of Radom, Poland 2 Tomas Bata University in Zlin, Czech Republic 3 Independent Researcher ∗ e-mail: [email protected]
utb.fulltext.dates Manuscript submitted 2023-11-06 revised 2024-01-24 initially accepted for publication 2024-01-25 published in May 2024
utb.fulltext.sponsorship -
utb.scopus.affiliation Casimir Pulaski University of Radom, Poland; Tomas Bata University, Zlin, Czech Republic
utb.fulltext.projects -
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