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dc.contributor.authorKadlec, Petr
dc.contributor.authorPolanský, Radek
dc.date.accessioned2021-03-01T11:00:28Z-
dc.date.available2021-03-01T11:00:28Z-
dc.date.issued2020
dc.identifier.citationKADLEC, P., POLANSKÝ, R. Influence of surface modification of montmorillonite on dielectric properties of epoxy-based composites. In: Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics (ICD 2020). Piscaway: IEEE, 2020. s. 249-252. ISBN 978-1-72818-983-3.cs
dc.identifier.isbn978-1-72818-983-3
dc.identifier.urihttp://hdl.handle.net/11025/42789
dc.format4 s.cs
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherIEEEen
dc.relation.ispartofseriesProceedings of the 2020 IEEE 3rd International Conference on Dielectrics (ICD 2020)en
dc.rightsPlný text je přístupný v rámci univerzity přihlášeným uživatelům.cs
dc.rights© IEEEen
dc.titleInfluence of surface modification of montmorillonite on dielectric properties of epoxy-based compositesen
dc.typekonferenční příspěvekcs
dc.typeconferenceObjecten
dc.rights.accessrestrictedAccessen
dc.type.versionpublishedVersionen
dc.description.abstract-translatedMany polymer-based electrical insulating composites containing a proportion of mineral fillers up to tens of weight percent are being prepared in the present time. Used fillers, often as flame retardants, are commonly modified with surfactants primarily to provide better filler dispersion in the polymer matrix. Currently, high interest is given to the good dispersion of particles and the processing of as homogeneous material as possible; nevertheless, potential adverse effects of such modification, often with strongly polar character, on important dielectric parameters of the material are analyzed in detail rarely. This problem will be emphasized in this paper, which compares the dielectric properties of composites based on the epoxy resin with the addition of montmorillonite clay without and with surface modification (by quaternary ammonium salt). Monitored loss factor representing dielectric losses in materials prove that the effect of the montmorillonite modification is negative in a certain frequency and temperature interval. The observed loss factor increases caused by the surface modification of montmorillonite is approximately threefold at 50 Hz and 50 °C (common operating conditions). It is advisable to pay attention to optimizing the incorporation of mineral fillers as a multi-step homogenization of mineral fillers within the polymer composites processing for electrical insulation systems. Only when the required level of filler dispersion has not been achieved by optimizing of filler incorporation without modification, the usage of modification designed to improve dispersion is well-founded.en
dc.subject.translatedcomplex permittivityen
dc.subject.translateddielectric lossesen
dc.subject.translatedepoxy-based compositesen
dc.subject.translatedfiller dispersionen
dc.subject.translatedmontmorilloniteen
dc.identifier.doi10.1109/ICD46958.2020.9341969
dc.type.statusPeer-revieweden
dc.identifier.obd43932146
dc.project.IDEF18_069/0009855/Elektrotechnické technologie s vysokým podílem vestavěné inteligencecs
dc.project.IDSGS-2018-016/Diagnostika a materiály v elektrotechnicecs
Vyskytuje se v kolekcích:Konferenční příspěvky / Conference Papers (KET)
Konferenční příspěvky / Conference papers (RICE)
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