Effect of moisture on the dielectric properties of polyimine-based recyclable polymer with self-healing ability

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F23%3A43969825" target="_blank" >RIV/49777513:23220/23:43969825 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/10410527" target="_blank" >https://ieeexplore.ieee.org/document/10410527</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/CEIDP51414.2023.10410527" target="_blank" >10.1109/CEIDP51414.2023.10410527</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of moisture on the dielectric properties of polyimine-based recyclable polymer with self-healing ability

Popis výsledku v původním jazyce

Highly recyclable materials are increasingly demanded in electrical engineering, and new approaches are being found to produce polymer materials with the required properties, including good dielectric properties. The formation of a reversible covalent network in polymer materials is possible for efficient and repeated recycling of these materials, enabling a good self-healing effect under specific ambient conditions. These materials, e.g., based on polyimines, are not new. Still, their dielectric properties, which are crucial for potential applications in electrical engineering, have not yet been sufficiently explored. This contribution primarily evaluates the influence of varying humidity and direct immersion in water on selected dielectric properties. Tested polyimine samples were conditioned in a hot air oven, desiccator and water bath, and then dielectric properties were measured by broadband dielectric spectroscopy (BDS). Conclusions defined based on the dielectric properties measurements by BDS are also supported by the results of differential scanning calorimetry, and the measurement of dielectric strength as an essential parameter for electrical insulating materials is added. The chemical structure of polyimines suggests that these materials would be relatively polar and unsuitable in tested versions for standard electrical insulation systems, even though this would be convenient due to their self-healing ability. Still, they could be used in special applications where relatively high and very moisture-dependent relative permittivity and dissipation factor can be utilized.

Název v anglickém jazyce

Effect of moisture on the dielectric properties of polyimine-based recyclable polymer with self-healing ability

Popis výsledku anglicky

Highly recyclable materials are increasingly demanded in electrical engineering, and new approaches are being found to produce polymer materials with the required properties, including good dielectric properties. The formation of a reversible covalent network in polymer materials is possible for efficient and repeated recycling of these materials, enabling a good self-healing effect under specific ambient conditions. These materials, e.g., based on polyimines, are not new. Still, their dielectric properties, which are crucial for potential applications in electrical engineering, have not yet been sufficiently explored. This contribution primarily evaluates the influence of varying humidity and direct immersion in water on selected dielectric properties. Tested polyimine samples were conditioned in a hot air oven, desiccator and water bath, and then dielectric properties were measured by broadband dielectric spectroscopy (BDS). Conclusions defined based on the dielectric properties measurements by BDS are also supported by the results of differential scanning calorimetry, and the measurement of dielectric strength as an essential parameter for electrical insulating materials is added. The chemical structure of polyimines suggests that these materials would be relatively polar and unsuitable in tested versions for standard electrical insulation systems, even though this would be convenient due to their self-healing ability. Still, they could be used in special applications where relatively high and very moisture-dependent relative permittivity and dissipation factor can be utilized.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Annual Report - Conference on Electrical Insulation and Dielectric Phenomena (CEIDP 2023)

ISBN

979-8-3503-3562-0

ISSN

0084-9162

e-ISSN

2576-2397

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

IEEE

Místo vydání

Piscataway

Místo konání akce

East Rutherford, Spojené státy

Datum konání akce

15. 10. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001169469200087