THE INFLUENCE OF MORPHOLOGY ON THE ELECTRICAL BREAKDOWN STRENGTH OF POLYPROPYLENE FILM

被引：34

作者：

GAO, LY ^{[1
]}

TU, DM ^{[1
]}

ZHOU, SC ^{[1
]}

ZHANG, ZL ^{[1
]}

机构：

[1] SHENGYANG CABLE WORKS, SHENYANG, PEOPLES R CHINA

来源：

IEEE TRANSACTIONS ON ELECTRICAL INSULATION | 1990年 / 25卷 / 03期

关键词：

D O I：

10.1109/14.55728

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：

The relationship between the microscopic structure morphology and the electrical strength of polypropylene (PP) film used in PP Laminated Paper (PPLP) in very HV oil-filled cable was studied by several methods, such as infrared spectrum, X-ray diffraction and dynamic mechanical spectra, etc. The paper indicates that the key to improve the breakdown strength, the tensile strength and the stability in oil for PP film, is to increase its structure parameters, namely, its crystallinity, orientation and molecular weight. In addition, the interaction between PPLP and liquid dielectric was also studied. When it was immersed in dodecyl benzene (DDB) at 100°C, the strength of PP film was decreased, because the amorphous part was dissolved and disorientation occurred. © 1990 IEEE

引用

页码：535 / 540

页数：6

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