Understanding the impact of space charge variations with UV- and water-aged epoxy alumina nanocomposites adopting pulsed electroacoustic techniques

Micro & nano letters

article

Neelmani¹  Ramanujam Sarathi¹  Hisayuki Suematsu² 

[1] Department of Electrical Engineering;Extreme Energy-Density Research Institute, Nagaoka University of Technology

关键词: pulsed electroacoustic methods;    nanocomposites;    space charge;    alumina;    resins;    ageing;    filled polymers;    permittivity;    nanofabrication;    water;    water-aged epoxy alumina nanocomposites;    pulsed electroacoustic technique;    alumina nanofiller;    epoxy resin;    epoxy–alumina nanocomposites;    ageing;    space charge;    ultraviolet specimens;    dielectric constant;    H2O;    Al2O3;   

DOI  :  10.1049/mnl.2020.0209

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Epoxy alumina nanocomposites were prepared to understand the space charge variations with ultra violet (UV)- and water-aged specimens. Addition of alumina nanofiller to epoxy resin had suppressed the space charge formation. A pulsed electroacoustic technique was employed to measure the space charge accumulation in epoxy–alumina nanocomposites. A marginal increase in space charge with enhanced electric field in the bulk volume of insulation was observed with UV- and water-aged nanocomposites. It was observed that 3 wt% sample showed better performance in all ageing conditions, which was confirmed through space charge studies and by the measurement of the dielectric parameters especially dielectric constant and tan( δ ).

【 授权许可】

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