Polystyrene/silicone rubber blends with improved dielectric properties

In this study, the dielectric properties of unfilled as well as nanofilled polystyrene-silicone rubber blends are evaluated. Accordingly, the preparation of polystyrene-silicone rubber blends is carried out considering three different concentrations of polystyrene (3, 7 and 10%wt). Also, the prepara...

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Bibliographic Details
Published in:Electrical engineering 2023-06, Vol.105 (3), p.1669-1681
Main Authors: Abd-Elhady, Amr M., Sleet, Amira Y., Izzularab, Mohamed A., Ibrahim, Mohamed E.
Format: Article
Language:English
Subjects:
Aging
Breakdown
Dielectric properties
Dissipation factor
Economics and Management
Electrical Engineering
Electrical Machines and Networks
Energy Policy
Engineering
Nanocomposites
Nanoparticles
Original Paper
Permittivity
Polymer blends
Polystyrene resins
Power Electronics
Rubber
Silicon dioxide
Silicone rubber
Silicones
Titanium dioxide
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Summary:In this study, the dielectric properties of unfilled as well as nanofilled polystyrene-silicone rubber blends are evaluated. Accordingly, the preparation of polystyrene-silicone rubber blends is carried out considering three different concentrations of polystyrene (3, 7 and 10%wt). Also, the preparation of polystyrene-silicone rubber nanocomposites is carried out considering different two types of nanoparticles. These nanoparticle types are TiO 2 and SiO 2 with the same average particle size of 20 nm. Different nanoparticle concentration levels of 1.5, 2 and 3%wt are studied. The effect of thermal aging on the dielectric properties of unfilled as well as nanofilled polystyrene-silicone rubber samples is evaluated. The samples are subjected to thermal aging for two months at a temperature of 130 °C. The average breakdown strength as well as the breakdown strength at 10% and 50% probabilities is evaluated before and after the thermal aging process. The dielectric response includes relative permittivity and dissipation factor which measured and evaluated under thermal aging. The obtained results show that adding small amount of polystyrene to silicone rubber improves its dielectric properties. Finally, adding small amounts of TiO 2 and SiO 2 nanoparticles to polystyrene-silicone rubber blends give more improvements in its dielectric properties.
ISSN:0948-7921
1432-0487
DOI:10.1007/s00202-023-01756-z