Název:	Effects of accelerated climatic aging on volume and surface resistivity of glass fiber reinforced thermoset composites
Autoři:	Prosr, Pavel Polanský, Radek Pihera, Josef Kadlec, Petr Hirman, Martin Krejnická, Tereza Musil, Ondřej Komárek, Josef Pavlica, Richard
Citace zdrojového dokumentu:	PROSR, P. POLANSKÝ, R. PIHERA, J. KADLEC, P. HIRMAN, M. KREJNICKÁ, T. MUSIL, O. KOMÁREK, J. PAVLICA, R. Effects of accelerated climatic aging on volume and surface resistivity of glass fiber reinforced thermoset composites. In: Proceedings of the 2020 International Conference on Diagnostics in Electrical Engineering (Diagnostika) : CDEE 2020. Pilsen: University of West Bohemia in Pilsen, 2020. s. 243-246. ISBN 978-1-72815-879-2, ISSN 2464-7071.
Datum vydání:	2020
Nakladatel:	University of West Bohemia in Pilsen
Typ dokumentu:	konferenční příspěvek conferenceObject
URI:	2-s2.0-85094833814 http://hdl.handle.net/11025/42831
ISBN:	978-1-72815-879-2
ISSN:	2464-7071
Klíčová slova v dalším jazyce:	accelerated climatic aging epoxide resin;glass fiber reinforced composite;polyurethane resin;surface resistivity;volume resistivity
Abstrakt v dalším jazyce:	This paper is focused on the analysis of selected dielectric parameters stability under the conditions of selected accelerated climatic aging. This stability is analyzed for glass fiber reinforced composites with different thermosetting matrix suitable for the production of electrical insulating and also construction elements. Different types of thermosetting resins (epoxy and polyurethane resins) were chosen for the preparation of composites, which are the subject of the presented experiment. Tested composites were firstly characterized in the delivered state and then after the accelerated climatic aging. Important dielectric parameters were evaluated, which are the volume resistivity and the surface resistivity. Two different tests of accelerated climatic aging were realized. The first one was Temperature/humidity cyclic test, which consists of alternated intervals (i) under the temperature of 55 °C and the humidity of 93 %RH and (ii) under the temperature of 25 °C and the humidity of 97.5 %RH. The second one was Damp heat steady state test when samples were exposed to the temperature of 85 °C and the humidity of 85 %RH continuously for 1000 hours. Based on the measured data of resistivities, prospective materials were selected for further activities leading to the production of construction elements with also good electrical insulating properties and with their minimal affection by simulated climatic conditions.
Práva:	Plný text je přístupný v rámci univerzity přihlášeným uživatelům. © University of West Bohemia in Pilsen
Vyskytuje se v kolekcích:	Konferenční příspěvky / Conference papers (RICE) Konferenční příspěvky / Conference Papers (KET) OBD

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