Title :
On the effect of the structural properties of polyethylene on the DC conductivity in the temperature range from 40° C to -80° C
Author :
Khalil, M. Salah ; Henk, P.O. ; Henriksen, M.
Author_Institution :
Danish Electr. Res. Inst., Lyngby, Denmark
Abstract :
Measurements of the flowing current under the effect of DC fields were conducted using relatively thick samples (1.8 mm) of three different materials: plain low density polyethylene (LDPE), crosslinked polyethylene (XLPE), and 1-wt% TiO2 doped LDPE. The measurements were performed over a range of temperatures from 40°C to 80°C and at electric fields as high as 3×105 V/cm. Results indicate that the observed DC conductive characteristics are different for the three materials. Those differences are attributed to the differences of the chemical and morphological structures of the materials used. Scanning electron micrographs seem to support this finding
Keywords :
electrical conductivity of amorphous semiconductors and insulators; organic insulating materials; polymers; scanning electron microscope examination of materials; 1.8 mm; 40 to 80 C; DC conductivity; DC fields; LDPE; TiO2 doped LDPE; XLPE; chemical structures; crosslinked polyethylene; electric fields; flowing current; low density polyethylene; morphological structures; polyethylene; scanning electron micrographs; structural properties; temperature range; thick samples; Chemicals; Conducting materials; Current measurement; Density measurement; Electric variables measurement; Electrons; Performance evaluation; Polyethylene; Temperature distribution; Thickness measurement;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1990. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
DOI :
10.1109/CEIDP.1990.201346
