Cart (Loading....) | Create Account
Close category search window
 

Effect of surface charge on hydrophobicity levels of insulating materials

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Moreno-Villa, V.M. ; Unidad de Mater. Electr., Inst. de Investigaciones Electr., Temixco, Mexico ; Ponce-Velez, M.A. ; Valle-Jaime, E. ; Fierro-Chavez, J.L.

A correlation between the hydrophobic characteristics and accumulation of static charge on several insulating surfaces (ceramic and nonceramic) is studied. This experiment consists of simultaneous measurements of surface charge decay and contact angle recovery against time on samples previously exposed to corona impingement; a comparison between charge decay and hydrophobicity recovery trends is then made. From the data obtained, a lowering of the original hydrophobicity level for each material as a consequence of surface charge accumulation is identified. The decay of surface charge and the corresponding recovery of the initial hydrophobic characteristics with time are observed. Loss and recovery of hydrophobicity resulting from surface charging and charge decay, respectively, are identified as mechanisms occurring not only on polymeric surfaces, but also on ceramic ones. From a number of laboratory studies, it has been confirmed and extensively reported by several researchers that surface charging of insulators due to electrical activity (partial discharging) can be achieved. Based on the above, as well as on the results obtained from this experimental work, surface charging of insulators is a phenomenon which may occur under realistic operational conditions, and is therefore proposed as a factor responsible for the loss of the initial highly hydrophobic characteristics of polymeric insulators and coatings, in addition to other well established mechanisms

Published in:

Generation, Transmission and Distribution, IEE Proceedings-  (Volume:145 ,  Issue: 6 )

Date of Publication:

Nov 1998

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.