Influence of surface modification of montmorillonite on dielectric properties of epoxy-based composites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F20%3A43961147" target="_blank" >RIV/49777513:23220/20:43961147 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore.ieee.org/document/9341969" target="_blank" >https://ieeexplore.ieee.org/document/9341969</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/ICD46958.2020.9341969" target="_blank" >10.1109/ICD46958.2020.9341969</a>
Alternative languages
Result language
angličtina
Original language name
Influence of surface modification of montmorillonite on dielectric properties of epoxy-based composites
Original language description
Many polymer-based electrical insulating composites containing a proportion of mineral fillers up to tens of weight percent are being prepared in the present time. Used fillers, often as flame retardants, are commonly modified with surfactants primarily to provide better filler dispersion in the polymer matrix. Currently, high interest is given to the good dispersion of particles and the processing of as homogeneous material as possible; nevertheless, potential adverse effects of such modification, often with strongly polar character, on important dielectric parameters of the material are analyzed in detail rarely. This problem will be emphasized in this paper, which compares the dielectric properties of composites based on the epoxy resin with the addition of montmorillonite clay without and with surface modification (by quaternary ammonium salt). Monitored loss factor representing dielectric losses in materials prove that the effect of the montmorillonite modification is negative in a certain frequency and temperature interval. The observed loss factor increases caused by the surface modification of montmorillonite is approximately threefold at 50 Hz and 50 °C (common operating conditions). It is advisable to pay attention to optimizing the incorporation of mineral fillers as a multi-step homogenization of mineral fillers within the polymer composites processing for electrical insulation systems. Only when the required level of filler dispersion has not been achieved by optimizing of filler incorporation without modification, the usage of modification designed to improve dispersion is well-founded.
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
<a href="/en/project/EF18_069%2F0009855" target="_blank" >EF18_069/0009855: Electrical Engineering Technologies with High-Level of Embedded Intelligence</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics (ICD 2020)
ISBN
978-1-72818-983-3
ISSN
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e-ISSN
—
Number of pages
4
Pages from-to
249-252
Publisher name
IEEE
Place of publication
Piscaway
Event location
on-line, Valencia, Spain
Event date
Jul 5, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000678286100068