Results 21 to 30 of about 7,123 (302)

Improved dielectric properties of PVDF nanocomposites with core–shell structured BaTiO(3)@polyurethane nanoparticles

open access: yesIET Nanodielectrics, 2020
Polymer nanocomposites with improved dielectric permittivity and high breakdown strength are extremely desirable for the flexible electronic devices and power systems.
Ming-Sheng Zheng   +6 more
doaj   +1 more source

Electrical properties evaluation of double‐layer nano‐filled oil‐paper composites

open access: yesIET Science, Measurement & Technology, 2021
Oil‐paper composite is the main insulation system in oil‐filled transformers. In recent years, the use of nanotechnology to improve the electrical and thermal properties of transformer oil has become a field of research interest.
Amr M. Abd‐Elhady   +2 more
doaj   +1 more source

Enhanced dielectric properties and breakdown strength of polymer/carbon nanotube composites by coating an SrTiO3 layer

open access: yese-Polymers, 2021
In this work, strontium titanate (STO) was coated on the surface of carbon nanotubes (MWCNTs) through a sol–gel method to form a core–shell structure hybrid powder (STO@MWCNTs).
Han Ruolin   +4 more
doaj   +1 more source

Effects of Temperature and Mechanical Stresses on the Dielectric Breakdown Strength of GF /EP Composites

open access: yesJournal of Harbin University of Science and Technology, 2018
To research the effects of temperature and mechanical stresses on the dielectric breakdown strength ( DBS) of Glass Fiber /Epoxy ( GF /EP) composites,the AC breakdown test has been carried out on the GF /EP composites under different temperatures ...
LIU Shu-mei, AO Ming, LI Zhong-hua
doaj   +1 more source

Modeling the dielectric breakdown strength and energy storage density of graphite-polymer composites with dielectric damage process

open access: yesMaterials & Design, 2020
Recent experimental data has demonstrated significant influences of graphite volume concentration on the dielectric breakdown and energy storage behavior of graphite-polymer composites, but no existing homogenization theory has been established to ...
Xiaodong Xia   +3 more
doaj   +1 more source

Study of Enhancing Energy Storage Density of Polypropylene Film Capacitors by Modified BaTiO3 Nano-fillers [PDF]

open access: yesDianli jianshe
[Objective] Polypropylene (PP) film capacitors are widely used in critical power equipment due to their excellent characteristics such as low loss and high voltage endurance. However, their low dielectric constant limits performance enhancement. [Methods]
LEI Tianxiang, XU Ying, ZHAO Zheng, SU Ran, WU Fangjie, HAO Zhiyuan, ZHAO Yuqi
doaj   +1 more source

Some Factors Effecting on the Dielectric Strength for (PVC- Kaolin) Composites [PDF]

open access: yesEngineering and Technology Journal, 2011
This research includes the effect of kaolin additions to the polymer matrix (PVC) and study some factors affecting to dielectric strength. The kaolin powder was added as percentage by weight (1,2,3 and 4%) to PVC, and the specimens formed by hot pressing
doaj   +1 more source

Influence of imidazole derivatives on the dielectric and energy storage performance of epoxy

open access: yesHigh Voltage, 2022
Imidazoles are widely used as curing agents and accelerators for fabricating crosslinked epoxy materials applied in electrical and electronic fields.
Jiaming Luo   +8 more
doaj   +1 more source

Improved energy storage performance of nanocomposites with Bi4.2K0.8Fe2O9+δ nanobelts

open access: yesJournal of Materiomics, 2020
Modern electronics and electric power grids require high performance polymer-based dielectric nanocomposites. To realize large-scale applications, the energy density of nanocomposites needs to be further increased.
Chuangming Hou   +4 more
doaj   +1 more source

Effect of Environmental Temperature on the Insulating Performance of Epoxy/MgO Nanocomposites

open access: yesApplied Sciences, 2020
This article reports on the development of nano-MgO/epoxy resin composites with various mass ratios via a solution blending method. The influence of MgO nanofillers on the thermal properties and the effect of environmental temperature on the insulating ...
Guanghui Ge   +3 more
doaj   +1 more source

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