Title :
Dielectric behavior of a ld-polyethylene/nanosilica assembly
Author :
Fréchette, M.F. ; Allais, A. ; Mafouana, R.R. ; Veillette, R. ; Vanga-Bouanga, C. ; David, E. ; Couderc, H. ; Trudeau, M.L. ; Mazelle, C. ; Castellon, J. ; Toureille, A.
Author_Institution :
Inst. de Rech. d´´Hydro-Quebec (IREQ), Varennes, QC, Canada
Abstract :
Different LDPE/nanosilica assemblies were imaged in details at nanoscale and some of their dielectric properties were studied. A sol-gel silica coating on polyethylene (PE), very well ordered, resulted into a slight decrease of the real permittivity of the assembly. This is believed to be the result of the interplay of local morphology change and non-uniformities of the field at the interface PE/nanosilica. The nanosilica coating when sandwiched between PE plates affected the measured space charge profiles.
Keywords :
coating techniques; nanostructured materials; polyethylene insulation; silicon compounds; sol-gel processing; space charge; LDPE-nanosilica interface; SiO2; dielectric property; field morphology change; field nonuniformity; nanoscale; nanosilica assembly; nanosilica coating; polyethylene; sol-gel silica coating; space charge profile measurement; Assembly; Coatings; Dielectrics; Permittivity; Polymers; Silicon compounds;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena (CEIDP), 2012 Annual Report Conference on
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4673-1253-0
Electronic_ISBN :
0084-9162
DOI :
10.1109/CEIDP.2012.6378837
