Enhanced high voltage insulation performance of HTV silicon rubber nanocomposites filled with nano-TiO2 for outdoor applications

This study focuses on the performance evaluation of silicone rubber (SR) nanocomposites fabricated using industry-standard molding and thermal compression techniques. Nanocomposite insulator specimens were synthesized with nano-TiO 2 doping concentrations of 0%, 1%, 3%, 5%, and 7% by weight. The DC...

Celý popis

Uložené v:
Podrobná bibliografia
Vydané v:Scientific reports Ročník 15; číslo 1; s. 23735 - 14
Hlavní autori: Rehman, Aqeel Ur, Khan, Muhammad Salman, Khattak, Abraiz, Ahmad, Nafees, Imran, Kashif, Khan, Yasin, Alkhalid, Khalid Hamad
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: London Nature Publishing Group UK 03.07.2025
Nature Publishing Group
Nature Portfolio
Predmet:
639/166/987
639/925/357
Calorimetry
Contact angle
DC resistance
Dielectric breakdown
Dielectric constant
Dielectric properties
Differential scanning calorimetry
Flow rates
Heat conductivity
High voltage
Humanities and Social Sciences
Hydrophobicity
Leakage current
multidisciplinary
Nanocomposites
Nanoparticles
Partial discharge
Performance assessment
Polymers
Rubber
Science
Science (multidisciplinary)
Silicones
Thermal analysis
Thermal stability
Titanium dioxide
Voltage
Zinc oxides
United States > US
Leakage current
DC resistance
Partial discharge
Dielectric breakdown
Hydrophobicity
Thermal analysis
ISSN:2045-2322, 2045-2322
On-line prístup:Získať plný text
Tagy: Pridať tag
Žiadne tagy, Buďte prvý, kto otaguje tento záznam!
Popis
Shrnutí:This study focuses on the performance evaluation of silicone rubber (SR) nanocomposites fabricated using industry-standard molding and thermal compression techniques. Nanocomposite insulator specimens were synthesized with nano-TiO 2 doping concentrations of 0%, 1%, 3%, 5%, and 7% by weight. The DC resistance measurements of the nanocomposites exhibited a distinct range from 211.33 GΩ to 161.16 GΩ with increasing nano-filler content. Notably, a 7% nano-TiO 2 loading yielded the highest dielectric constant at both 0 Hz and 2 MHz. Partial discharge (PD) testing indicated that the 5% nano-TiO 2 composite exhibited a 24.1% increase in inception voltage, signifying improved resistance to electrical stress due to the enhanced charge distribution and stabilization effects introduced by nano-filler incorporation. The observed variations in PD inception voltage were attributed to the interplay between doping levels and local charge diffusion dynamics, which modified the electric field distribution. Thermal stability assessments revealed significant modifications in degradation kinetics upon TiO 2 nanoparticle inclusion, as determined via thermogravimetric analysis (TGA). Differential scanning calorimetry (DSC) demonstrated a 38% reduction in polymer flow rate between − 50 °C and 100 °C, indicative of endothermic transitions. Mechanical property evaluations showed that the 5% TiO 2 -filled composite exhibited the lowest tensile force durability (41.2 N) and tear strength (18.72 kN/m). A comprehensive performance assessment highlights the enhanced operational reliability and longevity of HTV-SR nanocomposites, making them viable candidates for outdoor high-voltage insulator applications.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
content type line 23
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-025-02730-4