Title :
Mapping of water trees in polyethylene using FTIR microspectroscopy
Author :
Gosse, B. ; Filippini, J.C.
Author_Institution :
Lab. d´´Electrostatique et de Materiaux Dielectriques, CNRS, Grenoble, France
Abstract :
The spatial distribution of water in water trees grown in polyethylene by the water needle method was determined using FTIR (Fourier-transform infrared) microspectroscopy. The water content decreased from the base of the tree to the front in agreement with optical microscopy measurements on water-filled microcavities. Besides water, ether groups were detected with a distribution similar to that of water. No other absorption band was detected in the purely water-treed specimens which were analyzed
Keywords :
Fourier transform spectroscopy; cable insulation; electric breakdown of solids; infrared spectroscopy; organic insulating materials; polymers; FTIR microspectroscopy; electric breakdown; ether groups; mapping; microcavities; polyethylene; polymer; spatial distribution; transient tracks; water needle; water trees; Microcavities; Needles; Optical microscopy; Polyethylene; Polymers; Spectroscopy; Thermal degradation; Trees - insulation; Vegetation mapping; Voltage;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1992., Proceedings of the 4th International Conference on
Conference_Location :
Sestri Levante
Print_ISBN :
0-7803-0129-3
DOI :
10.1109/ICSD.1992.225012
