Properties of polyethylene blend tested as a non-cross-linked insulating material for power cable

Hiroki Tamura, Hironaga Ono, Masaaki Ikeda, Yoshimi Yamamoto, Yoshimichi Ohki

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    Abstract

    From viewpoints of environmental protection and reduction in manufacturing costs, it is desirable to use non-cross-linked polyethylene as an insulating material for power cables. A new type of polymerized polyethylene using a single-site catalyst has an advantage of its high melting point, but its processability is very poor because of its high viscosity. Therefore, blends of this polyethylene and conventional low-density polyethylene with different blending ratios are examined in this research. We found that the blend with a blending ratio of 1:1 has an appropriate melt tension and adequate viscosity at a shear rate suitable for cable manufacturing. Furthermore, the blend has a superior thermal property and a high dielectric strength for both DC and impulse voltages.

    Original languageEnglish
    Pages (from-to)1-8
    Number of pages8
    JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
    Volume153
    Issue number1
    DOIs
    Publication statusPublished - 2005 Oct

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    Keywords

    • Breakdown
    • Insulating material
    • Polyethylene
    • Polymer blend
    • Power cable

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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