Effect of Halloysite Nanotubes on the Properties of LLDPE/HNT Composites for the Cable Industry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F24%3A43972554" target="_blank" >RIV/49777513:23220/24:43972554 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/10613271" target="_blank" >https://ieeexplore.ieee.org/document/10613271</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICD59037.2024.10613271" target="_blank" >10.1109/ICD59037.2024.10613271</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Halloysite Nanotubes on the Properties of LLDPE/HNT Composites for the Cable Industry

Popis výsledku v původním jazyce

Polymer composites based on linear low-density polyethylene (LLDPE) with halloysite nanotubes (HNT) offer great promise for developing low-fire hazard cables due to their proven fire-retardant properties. However, incorporating HNT into a non-polar polymer matrix inevitably changes the composites’ polarity, homogeneity, and thermal properties. Consequently, this can lead to a degradation of the dielectric and mechanical properties. This work describes such changes for LLDPE/HNT composites that differ in the amount of HNT present in the LLDPE matrix. A series of LLDPE/HNT composites with filling levels of 1, 3, and 7 wt% of HNT and pure LLDPE as the reference material were prepared by extrusion. Dielectric properties such as volume resistivity, dielectric strength, complex relative permittivity, and dissipation factor were determined. Tensile tests and cone calorimetry were also carried out to enhance the characterization of the tested materials regarding dielectric properties and other parameters necessary for using the tested materials as cable insulation. Adding HNT to LLDPE up to 7 wt% has no substantial effect on the mechanical parameters. However, due to its molecular polarity, HNT significantly deteriorates the dielectric parameters at 7 wt% of HNT. The results obtained using the cone calorimeter show that adding HNT reduces the value of the maximum heat release rate curve and the burning time. Burning of composites with HNT does not produce more smoke than burning of reference LLDPE.

Název v anglickém jazyce

Effect of Halloysite Nanotubes on the Properties of LLDPE/HNT Composites for the Cable Industry

Popis výsledku anglicky

Polymer composites based on linear low-density polyethylene (LLDPE) with halloysite nanotubes (HNT) offer great promise for developing low-fire hazard cables due to their proven fire-retardant properties. However, incorporating HNT into a non-polar polymer matrix inevitably changes the composites’ polarity, homogeneity, and thermal properties. Consequently, this can lead to a degradation of the dielectric and mechanical properties. This work describes such changes for LLDPE/HNT composites that differ in the amount of HNT present in the LLDPE matrix. A series of LLDPE/HNT composites with filling levels of 1, 3, and 7 wt% of HNT and pure LLDPE as the reference material were prepared by extrusion. Dielectric properties such as volume resistivity, dielectric strength, complex relative permittivity, and dissipation factor were determined. Tensile tests and cone calorimetry were also carried out to enhance the characterization of the tested materials regarding dielectric properties and other parameters necessary for using the tested materials as cable insulation. Adding HNT to LLDPE up to 7 wt% has no substantial effect on the mechanical parameters. However, due to its molecular polarity, HNT significantly deteriorates the dielectric parameters at 7 wt% of HNT. The results obtained using the cone calorimeter show that adding HNT reduces the value of the maximum heat release rate curve and the burning time. Burning of composites with HNT does not produce more smoke than burning of reference LLDPE.

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 5th International Conference on Dielectrics (ICD)

ISBN

979-8-3503-0897-6

ISSN

2834-8303

e-ISSN

2834-8311

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

IEEE

Místo vydání

Piscaway

Místo konání akce

Toulouse, France

Datum konání akce

30. 6. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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