Space charge behavior of XLPE/SiO2 nanocomposites with nanoparticle surface modification

Author

Ling Zhang ; Yuanxiang Zhou ; Xiaoyang Cui ; Yunxiao Zhang ; Qing Ye

Author_Institution

State Key Lab. of Control & Simulation of Power Syst. & Generation Equipments, Tsinghua Univ., Beijing, China

fYear

2014

fDate

8-11 June 2014

Firstpage

402

Lastpage

406

Abstract

Space charge behavior of XLPE/SiO₂ nanocomposites with nanoparticle surface modification via titanate(TC) and vinylsilance(VI) coupling agents was investigated. SEM results clearly show that TC and VI coupling agents improved nanoparticle dispersion within XLPE matrix due to the increasing surface hydrophobicity of SiO₂ nanoparticles. Space charge measurements under high electric field revealed that SiO₂ nanoparticles could not effectively suppress the injection and movement of space charge until organic surface modification, which was believed due to more and deeper trap sites considering the better dispersion of SiO₂ nanoparticles.

Keywords

XLPE insulation; hydrophobicity; nanocomposites; nanoparticles; scanning electron microscopy; silicon compounds; space charge; SEM results; SiO₂; TC coupling agents; VI coupling agents; XLPE matrix; XLPE-SiO2 nanocomposites; nanoparticle dispersion; nanoparticle surface modification; organic surface modification; space charge behavior; surface hydrophobicity; titanate coupling agents; trap sites; vinylsilance coupling agents; Anodes; Electric breakdown; Electric fields; Nanocomposites; Nanoparticles; Space charge; Surface morphology; SiO2 nanoparticle; XLPE; nanocomposite; nanoparticle surface modification; space charge;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation Conference (EIC), 2014

Conference_Location

Philadelphia, PA

Print_ISBN

978-1-4799-2787-6

Type

conf

DOI

10.1109/EIC.2014.6869418

Filename

6869418