Title :
Influence of temperature on the hydrophobicity of polymers
Author :
Berger, T. ; Sundhararajan, S. ; Nagaosa, T.
Author_Institution :
Div. of Electr. Products, 3M Austin Center, Kanagawa, Japan
Abstract :
This paper describes the results of an initial study on polymeric insulating materials such as silicone and ethylene propylene diene monomer (EPDM) rubbers which are commonly used as outdoor insulating materials for high voltage applications. The study was initiated to better understand the hydrophobic recovery of various polymeric materials at different temperatures. The materials were subjected to corona discharge for a specific period of time to destroy their surface hydrophobicity and later allowed to recover at various temperatures. The hydrophobic recovery was monitored using the contact angle technique
Keywords :
contact angle; corona; ethylene-propylene rubber; insulator testing; recovery; silicone rubber; silicone rubber insulators; surface phenomena; -30 to 90 C; contact angle technique; corona discharge; ethylene propylene diene monomer rubber; glass transition temperature; high voltage applications; hydrophobic recovery; outdoor insulating materials; polymeric insulating materials; silicone rubber; surface hydrophobicity destruction; temperature dependence; Corona; Dielectrics and electrical insulation; Glass; Monitoring; Polymers; Porcelain; Surface contamination; Surface resistance; Temperature dependence; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1997. IEEE 1997 Annual Report., Conference on
Conference_Location :
Minneapolis, MN
Print_ISBN :
0-7803-3851-0
DOI :
10.1109/CEIDP.1997.641094
