Title:
SEMI-CONDUCTIVE SHIELDING MATERIAL FOR HIGH-VOLTAGE CABLE, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/111152
Kind Code:
A1
Abstract:
Provided are a semi-conductive shielding material for a high-voltage cable, and a preparation method therefor. The semi-conductive shielding material for a high-voltage cable comprises, in parts by weight, the following components: 100 parts of an ethylene butyl acrylate resin, 25-40 parts of conductive carbon black, and 4-8 parts of functional auxiliaries, wherein the conductive carbon black includes conductive carbon black with a high oil absorption value and conductive carbon black with a low oil absorption value; and the oil absorption value of the conductive carbon black with the high oil absorption value is 300-400 ml/100g, the oil absorption value of the conductive carbon black with the low oil absorption value is 120-220 ml/100g, and the weight ratio of the conductive carbon black with the high oil absorption value to the conductive carbon black with the low oil absorption value is 1 to (2-4). The semi-conductive shielding material for a high-voltage cable has good conductivity, good mechanical properties, and good stripping adhesion; and overcomes the problem of the addition of graphene combined with carbon black to a resin for improving the conductivity and mechanical properties causing a high graphene cost, and also overcomes the adverse effects on formability and mechanical properties caused by a large amount of carbon black being necessarily added for obtaining a preset conductivity in semi-conductive shielding materials for high-voltage cables.
Inventors:
HOU SHUAI (CN)
LI XIAOLIN (CN)
FU MINGLI (CN)
ZHU WENBO (CN)
HUI BAOJUN (CN)
FENG BIN (CN)
ZHANG YIFAN (CN)
WU GUOXING (CN)
XIE HONG (CN)
CHEN XIAO (CN)
XU SHU (CN)
LI XIAOLIN (CN)
FU MINGLI (CN)
ZHU WENBO (CN)
HUI BAOJUN (CN)
FENG BIN (CN)
ZHANG YIFAN (CN)
WU GUOXING (CN)
XIE HONG (CN)
CHEN XIAO (CN)
XU SHU (CN)
Application Number:
PCT/CN2021/125243
Publication Date:
June 02, 2022
Filing Date:
October 21, 2021
Export Citation:
Assignee:
ELECTRIC POWER RES INSTITUTE CHINA SOUTHERN POWER GRID (CN)
SHENZHEN POWER SUPPLY CO LTD (CN)
SHENZHEN POWER SUPPLY CO LTD (CN)
International Classes:
C08K3/04; C08L23/08; C08K5/053; C08K5/098; C08K5/544; C08K13/02; C08L101/04
Foreign References:
| CN112457567A | 2021-03-09 | |||
| CN108164804A | 2018-06-15 | |||
| CN105131419A | 2015-12-09 | |||
| US20030111253A1 | 2003-06-19 | |||
| CN201711408418A | 2017-12-22 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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