Invariant Dielectric Strength upon Addition of Low Amounts of HDPE to LDPE.

Mattias Andersson, Xiangrong Chen, Jonna Hynynen, Mats R. Andersson, Thomas Gkourmpis, Per-Ola Hagstrand, Stanislaw Gubanski, Christian Muller

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)


    Blending of polyethylenes permits to combine the superior mechanical properties of high-density material with the higher purity that is associated with low-density resins. Mixing different polyethylene architectures offers a lot of advantages, but for electrical applications it is important that there is no detrimental effect on the resulting dielectric strength. Here, the nanostructure of crosslinked blends that comprise low- and high-density polyethylene (LDPE and HDPE) is explored. Despite the presence of higher-melting lamellae the formation of electrical trees under alternating current (AC) conditions is found to be invariant for the investigated HDPE content of 1 to 10 wt%. This observation suggests that the use of polyethylene blends is feasible for AC electrical applications.

    Original languageEnglish
    Pages (from-to)711-714
    Number of pages4
    JournalConference on Electrical Insulation and Dielectric Phenomena. Annual Report
    Issue numberArt: 7785593
    Publication statusPublished - 15 Dec 2016


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