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Influence of morphology effects on electrical properties in XLPE

✍ Scribed by S. Nilsson; T. Hjertberg; A. Smedberg; B. Sonerud

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
879 KB
Volume
121
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

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. Β© 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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