Dielectric and thermal properties of self-healing carboxylated nitrile rubber ionically cross-linked with zinc oxide
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F22%3A43965558" target="_blank" >RIV/49777513:23220/22:43965558 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore.ieee.org/document/9833189" target="_blank" >https://ieeexplore.ieee.org/document/9833189</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/EIC51169.2022.9833189" target="_blank" >10.1109/EIC51169.2022.9833189</a>
Alternative languages
Result language
angličtina
Original language name
Dielectric and thermal properties of self-healing carboxylated nitrile rubber ionically cross-linked with zinc oxide
Original language description
Dielectric and thermal properties of carboxylated nitrile rubber (XNBR), ionically cross-linked with zinc oxide (ZnO), were characterized to verify its suitability for a high-voltage insulation application. Moreover, the material self-healing (SH) capabilities were assessed after dielectric strength measurement by following IEC 60243. The initial thermal characterization via simultaneous thermal analysis (STA) showed that the material is thermo-oxidatively stable to around 330 °C when the weight loss reaches about 3 %. The dielectric properties of the material as a function of temperature and frequency were analyzed using broadband dielectric spectroscopy (BDS). BDS revealed that dielectric constant and loss factor values reach the generally acceptable level for an insulation material at the industrial frequency (50 Hz) and temperatures below -20 °C. At higher frequencies (specifically at 1 MHz) and temperatures of 60 °C, a significant increase of the values are evidenced, which is affected by polarization processes. Furthermore, it was found that the tested material achieves mean values of volume and surface resistivity of 5.12E+08 Ω•cm and 2.01E+10 Ω, respectively, and a relatively low value of dielectric strength (12 kV/mm). A detailed analysis of the dynamic electrical breakdown process showed that the tested material could partly heal its chain structure, especially in the early stages of breakdown's channel formation.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
2022 IEEE Electrical Insulation Conference (EIC 2022) : /proceedings/
ISBN
978-1-66548-023-9
ISSN
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e-ISSN
2576-6791
Number of pages
4
Pages from-to
124-127
Publisher name
IEEE
Place of publication
Piscaway
Event location
Knoxville, Tennessee, USA
Event date
Jun 19, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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