Thermoplastic Cable Insulation Comprising a Blend of Isotactic Polypropylene and a Propylene-ethylene Copolymer

被引：127

作者：

Green, C. D. ^{[1
]}

Vaughan, A. S. ^{[1
]}

Stevens, G. C. ^{[2
]}

Pye, A. ^{[2
]}

Sutton, S. J. ^{[3
]}

Geussens, T. ^{[4
]}

Fairhurst, M. J. ^{[5
]}

机构：

[1] Univ Southampton, Tony Davies High Voltage Lab, Southampton SO9 5NH, Hants, England

[2] GnoSys Global, Guildford, Surrey, England

[3] EPRI, Egham, Surrey, England

[4] Dow Europe GmbH, Horgen, Switzerland

[5] Natl Grid, Warwick, England

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2015年 / 22卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

Cables; polypropylene; copolymer; polymer blends; insulation; dielectric breakdown; mechanical properties; recyclable; MORPHOLOGY;

D O I：

10.1109/TDEI.2015.7076758

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

There is much interest in the development of replacement materials for crosslinked polyethylene (XLPE) that are both recyclable (i.e. thermoplastic) and capable of high temperature operation. Thermally, polypropylene is the ideal choice, although its stiffness and low electrical breakdown strength make for a challenging materials design problem. We report here on the compositional optimization of a propylene homopolymer/propylene-ethylene copolymer blend in terms of its dynamic mechanical properties and thin film electrical breakdown strength. The extrusion of a trial minicable using the optimized blend is also discussed, which is shown to exhibit a significantly improved electrical performance, as gauged by its DC breakdown strength, than an XLPE-insulated reference.

引用

页码：639 / 648

页数：10

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