Title :
Water permeation through electrically damaged polyethylene
Author :
Gordon, Glenn F. ; Shaw, Montgomery T.
Author_Institution :
Dept. of Chem. Eng., Connecticut Univ., Storrs, CT, USA
Abstract :
The morphology of water trees has been related to their mechanism of formation by studying the permeability of aqueous salt solutions through treed polymeric membranes under the influence of electric fields. The permeation results do not support the hypothesis that channels open in the presence of electrical fields. However, supplementary data establish a correlation between water concentration and water tree damage and show that treed polyethylene has lower apparent diffusion rates than untreed controls. These results are in agreement with a growth mechanism involving discrete droplets of water.<>
Keywords :
electric breakdown of solids; electric fields; polymers; apparent diffusion rates; aqueous salt solutions; discrete droplets; electric fields; electrically damaged polyethylene; growth mechanism; morphology; permeability; treed polymeric membranes; water concentration; water trees; Biomembranes; Dielectrics; Moisture; Morphology; Polyethylene; Solids; Stress; Testing; Trees - insulation; Voltage;
Conference_Titel :
Electrical Insulation, 1988., Conference Record of the 1988 IEEE International Symposium on
Conference_Location :
Cambridge, MA, USA
DOI :
10.1109/ELINSL.1988.13930
