DC and AC conductivity of LDPE nanocomposites

Author

Ciuprina, Florin ; Plesa, Ilona

Author_Institution

Fac. of Electr. Eng., ELMAT Lab., Univ. Politeh. of Bucharest, Bucharest, Romania

fYear

2011

fDate

12-14 May 2011

Firstpage

1

Lastpage

6

Abstract

One of the main targets of the research in the field of polymer nanocomposite dielectrics is to understand and control the charge transport and the dielectric behaviour of these nanodielectrics in order to obtain new materials with improved electric properties (resistivity, dielectric strength, permittivity and dielectric losses). In this paper the DC conductivity and the variation of the real part of the complex conductivity with the frequency is investigated for three formulations of nanocomposites obtained from polyethylene filled with nanoparticles of SiO₂, TiO₂ and Al₂O₃, respectively. The influence of the filler concentration (between 2 and 10 wt%) on the AC conductivity behavior of the nanocomposite is analyzed as well.

Keywords

aluminium compounds; dielectric materials; electrical conductivity; filled polymers; nanocomposites; nanoparticles; polyethylene insulation; silicon compounds; titanium compounds; AC conductivity; Al₂O₃; DC conductivity; LDPE; SiO₂; TiO₂; filler concentration; nanodielectrics; nanoparticles; polyethylene; polymer nanocomposite dielectrics; Conductivity; Dielectrics; Electric fields; Nanocomposites; Permittivity; Polyethylene;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Topics in Electrical Engineering (ATEE), 2011 7th International Symposium on

Conference_Location

Bucharest

ISSN

2068-7966

Print_ISBN

978-1-4577-0507-6

Type

conf

Filename

5952216