Title :
Electrical properties of ethylene/silane copolymers
Author :
Ishino, Iwao ; Doi, Shuhei ; Sawa, Goro ; Hikita, Masayuki ; Mizutani, Teruyoshi ; Ieda, Masayuki
Author_Institution :
Mitsubishi Petrochem. Co. Ltd., Yokkaichi, Japan
Abstract :
A method of manufacturing silane-crosslinked polyethylene was developed using random copolymerization of ethylene with silane compounds. In examining the crosslinking properties and electrical properties of these ethylene/silane copolymers, it was found that the crosslinking rate was closely related with the reactivity of the silane, whereas the electric strength did not differ greatly with the type of silane radical. Study of the mechanism of electric breakdown under application of DC voltage in a temperature range of 60°C~160°C revealed that the electric strength can become greater than that for application of impulses near the ordinary temperatures due to the influence of space charges. In the higher temperature range, on the other hand, the electric breakdown appeared to be due to a certain complex process concerned with Maxwellian forces
Keywords :
electric breakdown of solids; electric strength; organic insulating materials; polymer blends; space charge; 60 to 160 degC; DC voltage; Maxwellian forces; crosslinking properties; electric breakdown; electric strength; electrical properties; ethylene/silane copolymers; impulses; random copolymerization; silane-crosslinked polyethylene; space charges; Breakdown voltage; Chemicals; Electric breakdown; Inductors; Manufacturing processes; Petrochemicals; Polyethylene; Polymers; Space charge; Temperature distribution;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1988. Proceedings., Second International Conference on Properties and Applications of
Conference_Location :
Beijing
DOI :
10.1109/ICPADM.1988.38405
