Assessing thermal and dielectric characteristics of healable, low-field illuminating optoelectronic stretchable material for electrical insulating purposes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F22%3A43965948" target="_blank" >RIV/49777513:23220/22:43965948 - isvavai.cz</a>

Result on the web

<a href="https://ieeexplore.ieee.org/document/9905118" target="_blank" >https://ieeexplore.ieee.org/document/9905118</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/Diagnostika55131.2022.9905118" target="_blank" >10.1109/Diagnostika55131.2022.9905118</a>

Result language

angličtina

Original language name

Assessing thermal and dielectric characteristics of healable, low-field illuminating optoelectronic stretchable material for electrical insulating purposes

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of the 2022 International Conference on Diagnostics in Electrical Engineering (Diagnostika) : CDEE 2022

ISBN

978-1-66548-082-6

ISSN

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e-ISSN

2464-708X

Number of pages

4

Pages from-to

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Publisher name

University of West Bohemia in Pilsen

Place of publication

Pilsen

Event location

Pilsen, Czech Republic

Event date

Sep 6, 2022

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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