Characterisation of Polyurethane Potting Compounds with Semiconductive Coating for Explosive Atmosphere Applications

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dc.contributor.authorKalaš, David
dc.contributor.authorKadlec, Petr
dc.contributor.authorPretl, Silvan
dc.contributor.authorSoukup, Radek
dc.contributor.authorPolanský, Radek
dc.date.accessioned2023-01-16T11:00:18Z
dc.date.available2023-01-16T11:00:18Z
dc.date.issued2022
dc.description.abstract-translatedElectronic devices intended for an explosive atmosphere with a significant concentration of explosive gases, vapours, or dust, must meet strict standards requirements. The essential requirement is low surface resistivity, vital for dissipating static charge from the environment and preventing spark generation. This paper is focused on the dielectric characterisation of three variants of electrical insulating polyurethane potting compounds in combination with three dissipative coatings. The analysis of the specimen's surface resistivity in the (i) initial state, (ii) state after their placement in a water bath, (iii) state after their placement in a water bath with detergent, and (iv) state after thermal stabilisation in an air oven at 125 °C was performed. Then, the effect of such conditions on the dielectric properties of tested specimens with/without different coatings was assessed. It was found that the surface resistivity is significantly affected for all tested specimens by immersion in water. Nevertheless, after a long-term stabilisation under ambient conditions, the surface resistivity of the specimens with/without coatings was close to the values before immersion for two types of coating. For the third type, a different trend in the observed parameters was found for two combinations of polyurethane compound and semiconductive coating due to the lower adhesion of these materials, which had an impact on the stability of the coating.en
dc.format4 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationKALAŠ, D. KADLEC, P. PRETL, S. SOUKUP, R. POLANSKÝ, R. Characterisation of Polyurethane Potting Compounds with Semiconductive Coating for Explosive Atmosphere Applications. In Proceedings of the 2022 9th International Conference on Condition Monitoring and Diagnosis (CMD). Piscataway: IEEE, 2022. s. 471-474. ISBN: 978-4-88686-431-4cs
dc.identifier.doi10.23919/CMD54214.2022.9991693
dc.identifier.isbn978-4-88686-431-4
dc.identifier.obd43937335
dc.identifier.urihttp://hdl.handle.net/11025/50947
dc.language.isoenen
dc.project.IDSGS-2021-003/Materiály, technologie a diagnostika v elektrotechnicecs
dc.project.IDFW03010077/InTechTex - Inovativní technologie integrace a pouzdření elektronických prvků pro smart textilie odolávající náročným podmínkámcs
dc.publisherIEEEen
dc.relation.ispartofseriesProceedings of the 2022 9th International Conference on Condition Monitoring and Diagnosis (CMD)en
dc.rightsPlný text je přístupný v rámci univerzity přihlášeným uživatelům.cs
dc.rights© IEEEen
dc.rights.accessrestrictedAccessen
dc.subject.translatedpolyurethane potting compoundsen
dc.subject.translatedsemiconductive coatingen
dc.subject.translatedsurface resistivityen
dc.subject.translatedwetting effecten
dc.subject.translatedthermal stressen
dc.titleCharacterisation of Polyurethane Potting Compounds with Semiconductive Coating for Explosive Atmosphere Applicationsen
dc.typekonferenční příspěvekcs
dc.typeConferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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