Title:	Assessing thermal and dielectric characteristics of healable, low-field illuminating optoelectronic stretchable material for electrical insulating purposes
Authors:	Nikolić, Valentino Kadlec, Petr Polanský, Radek Guanxiang, Wan Tee, Benjamin Chee Keong
Citation:	NIKOLIĆ, V. KADLEC, P. POLANSKÝ, R. GUANXIANG, W. TEE, BChK. Assessing thermal and dielectric characteristics of healable, low-field illuminating optoelectronic stretchable material for electrical insulating purposes. In Proceedings of the 2022 International Conference on Diagnostics in Electrical Engineering (Diagnostika) : CDEE 2022. Pilsen: University of West Bohemia in Pilsen, 2022. s. nestránkováno. ISBN: 978-1-66548-082-6
Issue Date:	2022
Publisher:	University of West Bohemia in Pilsen
Document type:	konferenční příspěvek ConferenceObject
URI:	2-s2.0-85141348496 http://hdl.handle.net/11025/50529
ISBN:	978-1-66548-082-6
Keywords in different language:	healable optoelectronic materials;dielectric strength;electrical insulation;thermal measurement;volume and surface resistivity
Abstract in different language:	An intrinsic self-healing material composed of poly-vinylidene-fluoride (PVDF) based fluoroelastomer with the addition of a small amount of non-ionic fluorinated surfactant was studied as a candidate material for electrical insulating purposes. Structural and thermal properties were analyzed with Fourier transform infrared spectroscopy and simultaneous thermal analysis. Broadband dielectric spectroscopy, volume and surface resistivity, and dielectric strength measurements provided a comprehensive overview of the dielectric properties. The material has a relatively high thermal stability (200 °C), a low dielectric strength of 13 kV/mm, and volume and surface resistivities of 1.07E+09 Ω⋅ cm and 1.94E+09 Ω, respectively. Due to various polarization effects, relative permittivity values are generally higher and increase with the loss factor at temperatures above 30 °c and at low frequencies (50 Hz). It was also found from high voltage testing that decomposition of the self-healing material was initiated by carbonization of the melt phase generated in the ignition area. Although a self-healing layer arises shortly after the destructive breakdown, the channel recovery activity is not consistent because of the material’s low viscosity. These initial results obtained on a novel dipole-dipole based self-healing material composite can serve as a reference point for further development – to reduce the overall polarity of the system and improve the dielectric properties, while maintaining its selfhealing ability.
Rights:	© IEEE
Appears in Collections:	OBD

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