Insights into Nano-Scale Physical and Mechanical Properties of Epoxy/Boehmite Nanocomposite Using Different AFM Modes

dc.contributor.authorGhasem Zadeh Khorasani, Media
dc.contributor.authorSilbernagl, Dorothee
dc.contributor.authorPlatz, Daniel
dc.contributor.authorSturm, Heinz
dc.date.accessioned2020-11-10T08:43:25Z
dc.date.available2020-11-10T08:43:25Z
dc.date.issued2019-02-01
dc.description.abstractUnderstanding the interaction between nanoparticles and the matrix and the properties of interphase is crucial to predict the macroscopic properties of a nanocomposite system. Here, we investigate the interaction between boehmite nanoparticles (BNPs) and epoxy using different atomic force microscopy (AFM) approaches. We demonstrate benefits of using multifrequency intermodulation AFM (ImAFM) to obtain information about conservative, dissipative and van der Waals tip-surface forces and probing local properties of nanoparticles, matrix and the interphase. We utilize scanning kelvin probe microscopy (SKPM) to probe surface potential as a tool to visualize material contrast with a physical parameter, which is independent from the mechanics of the surface. Combining the information from ImAFM stiffness and SKPM surface potential results in a precise characterization of interfacial region, demonstrating that the interphase is softer than epoxy and boehmite nanoparticles. Further, we investigated the effect of boehmite nanoparticles on the bulk properties of epoxy matrix. ImAFM stiffness maps revealed the significant stiffening effect of boehmite nanoparticles on anhydride-cured epoxy matrix. The energy dissipation of epoxy matrix locally measured by ImAFM shows a considerable increase compared to that of neat epoxy. These measurements suggest a substantial alteration of epoxy structure induced by the presence of boehmite.en
dc.description.sponsorshipDFG, 232311024, FOR 2021: Wirkprinzipien nanoskaliger Matrixadditive für den Faserverbundleichtbauen
dc.identifier.eissn2073-4360
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/11876
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-10766
dc.language.isoenen
dc.relation.ispartof10.14279/depositonce-9602
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftende
dc.subject.othernanomechanical propertiesen
dc.subject.otherboehmiteen
dc.subject.otherepoxy nanocompositesen
dc.subject.otheratomic force microscopyen
dc.subject.otherintermodulationen
dc.subject.otherinterphaseen
dc.titleInsights into Nano-Scale Physical and Mechanical Properties of Epoxy/Boehmite Nanocomposite Using Different AFM Modesen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber235en
dcterms.bibliographicCitation.doi10.3390/polym11020235en
dcterms.bibliographicCitation.issue2en
dcterms.bibliographicCitation.journaltitlePolymersen
dcterms.bibliographicCitation.originalpublishernameMDPIen
dcterms.bibliographicCitation.originalpublisherplaceBaselen
dcterms.bibliographicCitation.volume11en
tub.accessrights.dnbfreeen
tub.affiliationFak. 3 Prozesswissenschaften>Inst. Werkstoffwissenschaften und -technologien>FG Polymertechnik und Polymerphysikde
tub.affiliation.facultyFak. 3 Prozesswissenschaftende
tub.affiliation.groupFG Polymertechnik und Polymerphysikde
tub.affiliation.instituteInst. Werkstoffwissenschaften und -technologiende
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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