Thermal stability and self-healing capacity of modified carboxylated nitrile rubber

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F23%3A43969824" target="_blank" >RIV/49777513:23220/23:43969824 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/10410453" target="_blank" >https://ieeexplore.ieee.org/document/10410453</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/CEIDP51414.2023.10410453" target="_blank" >10.1109/CEIDP51414.2023.10410453</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermal stability and self-healing capacity of modified carboxylated nitrile rubber

Popis výsledku v původním jazyce

Self-healing materials are becoming a widely discussed topic in materials engineering. Some of them could find applications as electrical insulators. However, the implementation of self-healing capability does not come without compromises in both the structure and properties of the materials. Therefore, these materials must be carefully evaluated before fully integrating into a broad portfolio of electrical insulation materials. An important and still unanswered question is how self-healing materials resist accelerated thermal ageing. This paper summarizes the results of dielectric, thermal, and mechanical properties measurements, before and after accelerated thermal ageing of carboxylated nitrile rubber (XNBR) containing ionic clusters as healing moieties. Simultaneous thermal analysis (STA), differential scanning calorimetry (DSC), broadband dielectric spectroscopy (BDS), and Fourier transform infrared spectroscopy (FT-IR) were performed. The healing efficiency of the thermally aged samples was evaluated based on tensile strength measurements (before and after the healing protocol). The results show that thermal ageing alters the material&apos;s structure. Changes in glass transition and decomposition temperatures were also observed. Structural changes caused by thermal ageing resulted in variations in the measured infrared spectra. The self-healing ability also decreased as thermal ageing was applied to the sample. The obtained results will help to determine the limited conditions under which the tested material can be used while maintaining its self-healing ability.

Název v anglickém jazyce

Thermal stability and self-healing capacity of modified carboxylated nitrile rubber

Popis výsledku anglicky

Self-healing materials are becoming a widely discussed topic in materials engineering. Some of them could find applications as electrical insulators. However, the implementation of self-healing capability does not come without compromises in both the structure and properties of the materials. Therefore, these materials must be carefully evaluated before fully integrating into a broad portfolio of electrical insulation materials. An important and still unanswered question is how self-healing materials resist accelerated thermal ageing. This paper summarizes the results of dielectric, thermal, and mechanical properties measurements, before and after accelerated thermal ageing of carboxylated nitrile rubber (XNBR) containing ionic clusters as healing moieties. Simultaneous thermal analysis (STA), differential scanning calorimetry (DSC), broadband dielectric spectroscopy (BDS), and Fourier transform infrared spectroscopy (FT-IR) were performed. The healing efficiency of the thermally aged samples was evaluated based on tensile strength measurements (before and after the healing protocol). The results show that thermal ageing alters the material&apos;s structure. Changes in glass transition and decomposition temperatures were also observed. Structural changes caused by thermal ageing resulted in variations in the measured infrared spectra. The self-healing ability also decreased as thermal ageing was applied to the sample. The obtained results will help to determine the limited conditions under which the tested material can be used while maintaining its self-healing ability.

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

001169469200016