Influence of various types of ageing on the properties of self-healing carboxylated nitrile rubber

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F24%3A43972597" target="_blank" >RIV/49777513:23220/24:43972597 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/10750619" target="_blank" >https://ieeexplore.ieee.org/document/10750619</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICPADM61663.2024.10750619" target="_blank" >10.1109/ICPADM61663.2024.10750619</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of various types of ageing on the properties of self-healing carboxylated nitrile rubber

Popis výsledku v původním jazyce

Self-healing polymers, such as carboxylated nitrile rubber (XNBR), represent a promising solution for the failure of materials under mechanical and electrical loads. Selfhealing materials can also be considered in this context as materials that are less predisposed to ageing under service conditions. This paper summarises the results of the XNBR testing via dynamical mechanical analysis (DMA), broadband dielectric spectroscopy (BDS) and Fourier transform infrared spectroscopy (FT-IR). UV (ultraviolet) ageing experiments were performed, and these methods evaluated the ageing effects onthe tested XNBR. Then, the results were compared with the thermal ageing results that had already been reported. It was found that thermal ageing causes significant changes in material properties. The thermal ageing results show a slight increase in glass transition temperature. BDS analysis also showed deterioration of dielectric properties with ageing, including a noticeable decrease in dielectric constant and an increase in dissipation factor. Furthermore, it was found that UV radiation mainly affects the properties of the surface layer, the formation of which theoretically inhibits internal degradation. UV exposure gradually changes the mechanical properties measured by DMA, causing the storage modulus to almost double. In addition, changes in the FT-IR vibrational spectrumwere observed, specifically damping of the peak in the region with a maximum of 1544 cm-1 and 920 cm-1. These findings are crucial for material selection and assessment of self-healing efficiency along accelerated ageing.

Název v anglickém jazyce

Influence of various types of ageing on the properties of self-healing carboxylated nitrile rubber

Popis výsledku anglicky

Self-healing polymers, such as carboxylated nitrile rubber (XNBR), represent a promising solution for the failure of materials under mechanical and electrical loads. Selfhealing materials can also be considered in this context as materials that are less predisposed to ageing under service conditions. This paper summarises the results of the XNBR testing via dynamical mechanical analysis (DMA), broadband dielectric spectroscopy (BDS) and Fourier transform infrared spectroscopy (FT-IR). UV (ultraviolet) ageing experiments were performed, and these methods evaluated the ageing effects onthe tested XNBR. Then, the results were compared with the thermal ageing results that had already been reported. It was found that thermal ageing causes significant changes in material properties. The thermal ageing results show a slight increase in glass transition temperature. BDS analysis also showed deterioration of dielectric properties with ageing, including a noticeable decrease in dielectric constant and an increase in dissipation factor. Furthermore, it was found that UV radiation mainly affects the properties of the surface layer, the formation of which theoretically inhibits internal degradation. UV exposure gradually changes the mechanical properties measured by DMA, causing the storage modulus to almost double. In addition, changes in the FT-IR vibrational spectrumwere observed, specifically damping of the peak in the region with a maximum of 1544 cm-1 and 920 cm-1. These findings are crucial for material selection and assessment of self-healing efficiency along accelerated ageing.

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

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

2024 IEEE 14th International Conference on the Properties and Applications of Dielectric Materials (ICPADM)

ISBN

979-8-3503-7460-5

ISSN

2160-9225

e-ISSN

2160-9241

Počet stran výsledku

4

Strana od-do

367-370

Název nakladatele

IEEE

Místo vydání

Piscataway

Místo konání akce

Phuket, Thailand

Datum konání akce

4. 8. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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