Influence of UV radiation on dielectric absorption and dielectric strength of halloysite nanotubes filled polyethylene composites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F18%3A43953677" target="_blank" >RIV/49777513:23220/18:43953677 - isvavai.cz</a>

Result on the web

<a href="http://www.aei.tuke.sk/papers/2018/4/2018-4.htm#KADLEC" target="_blank" >http://www.aei.tuke.sk/papers/2018/4/2018-4.htm#KADLEC</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.15546/aeei-2018-0030" target="_blank" >10.15546/aeei-2018-0030</a>

Result language

angličtina

Original language name

Influence of UV radiation on dielectric absorption and dielectric strength of halloysite nanotubes filled polyethylene composites

Original language description

This paper deals with the evaluation of the amount of filler influence and the ultraviolet (UV) radiation influence on selected dielectric properties of the innovative type of composites. These composites consist of a linear low-density polyethylene matrix and a clay filler (with different filling levels) that contains halloysite nanotubes (HNT) primarily. The intended application of tested composites in the field of electrical engineering is in insulating systems of power cables. Attention is paid to the analysis of the behaviour of composites in their charging, which is caused by the connection with the direct voltage source. The volume resistivity and polarization indexes are determined based on this analysis. Analysis of charging based on the measurement of the current, which flows through the sample under constant applied voltage, is supplemented with the short evaluation of the material behaviour after the disconnecting of the voltage source and after the electrode shorting when the material is discharged. Furthermore, the measurement of dielectric strength under an alternating electric field as another key parameter of electrical insulating materials is determined. Results of analyses of absorption and resorption processes and the dielectric strength measurement of materials in the delivered state prove a significant effect of the filler percentage in the composite. Subsequently, markedly different values of selected parameters because of material exposure to UV radiation are also determined. Observed changes in dielectric properties caused by UV irradiation are supported by the analysis of the chemical structure of materials via Fourier transform infrared spectroscopy.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

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

Name of the periodical

Acta Electrotechnica et Informatica

ISSN

1335-8243

e-ISSN

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Volume of the periodical

18

Issue of the periodical within the volume

4

Country of publishing house

SK - SLOVAKIA

Number of pages

8

Pages from-to

32-39

UT code for WoS article

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EID of the result in the Scopus database

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