Volume 142, Issue 15 e56719
RESEARCH ARTICLE

Effect of Modified Carbon Black on the Performance of Semiconductive Composites for High-Voltage Direct-Current Cable Applications

Yuanyi Kang

Yuanyi Kang

State Key Laboratory of Advanced Power Transmission Technology, Beijing, China

College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China

Contribution: Conceptualization (lead), Methodology (lead), Project administration (lead), Visualization (lead), Writing - original draft (lead)

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Qingyu Wang

Qingyu Wang

College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China

Contribution: Conceptualization (equal), ​Investigation (lead), Writing - original draft (equal)

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Weihua Han

Weihua Han

College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China

Contribution: Formal analysis (lead), ​Investigation (equal)

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Zhaoliang Xing

Corresponding Author

Zhaoliang Xing

State Key Laboratory of Advanced Power Transmission Technology, Beijing, China

Correspondence:

Zhaoliang Xing ([email protected])

Chuncheng Hao ([email protected])

Contribution: Conceptualization (equal), Supervision (lead)

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Hongwei Xu

Hongwei Xu

Qingdao Hanhe Cable Co. Ltd., Qingdao, China

Contribution: Funding acquisition (equal), Project administration (equal)

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Tao Zhang

Tao Zhang

Qingdao Hanhe Cable Co. Ltd., Qingdao, China

Contribution: Methodology (equal), Resources (equal)

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Meng Xin

Meng Xin

College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China

Contribution: Software (lead), Validation (equal)

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Chuncheng Hao

Corresponding Author

Chuncheng Hao

College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China

Correspondence:

Zhaoliang Xing ([email protected])

Chuncheng Hao ([email protected])

Contribution: Conceptualization (lead), Methodology (equal), Visualization (equal), Writing - review & editing (lead)

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First published: 10 January 2025

Funding: This work was supported by State Key Laboratory of Advanced Power Transmission Technology, GEIRI-SKL-2021-005.

ABSTRACT

The semiconductive shielding layer is located between the conductive core and the insulation layer of high-voltage direct current cables, which plays a role in homogenizing the electric field and suppressing the effect of space charge injection into the insulation layer. However, the positive temperature coefficient (PTC) effect is still the main cause of thermal breakdown and interface failure of the insulation layer. In this paper, carbon black was etched and modified, and then blended with low density polyethylene (LDPE) and Ethylene-vinyl acetate (EVA) to prepare composites. The modification of carbon black enhanced suppression of space charge injection. Moreover, the PTC effect decreased by 15.4%.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

The data of this study are available on request from the corresponding author.

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