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Influence of Morphology Effects on Electrical Properties in XLPE

Susanne Nilsson (Institutionen för kemi- och bioteknik) ; T. Hjertberg ; A. Smedberg ; Björn Sonerud (Institutionen för material- och tillverkningsteknik, Högspänningsteknik)
Journal of Applied Polymer Science (0021-8995). Vol. 121 (2011), 6, p. 3483-3494.
[Artikel, refereegranskad vetenskaplig]

This study elucidates the influence of differences in crosslink structure and crosslink density on water tree growth, electrical tree growth, and electrical breakdown strength. One reference LDPE was compared with a LDPE containing a higher number of vinyl groups, introduced via the copolymerisation with a diene. Because of the chemical difference, the initially formed crosslink structure will be different for the materials. A range of various crosslink densities was considered for the two materials. It was found that along with a noticeable change in morphology after crosslinking, significant changes in particularly water tree growth, electrical tree growth, and electrical breakdown strength could be observed.

Nyckelord: electrical trees, water trees, electrical breakdown strength, crosslinked polyethylene, insulation, polyethylene blends, crystalline morphology, tree initiation, strength, insulation, breakdown, growth

Denna post skapades 2011-07-05.
CPL Pubid: 143091


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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik (2005-2014)
Institutionen för material- och tillverkningsteknik, Högspänningsteknik



Chalmers infrastruktur